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  • Mixosaurs

    A pod of Mixosaurs, Triassic ichthyosaurs, ply southern, high latitude seas in moonlight. 

    Pastel on 140lb watercolor paper, 18 x 24 inches, 2002. From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press in 2006

    Original artwork: available for sale, please inquire

    1273,960
    Direct Sale
  • Lystrosaurus Group

    A group of Lystrosaurus is settled about a stream embankment in South Africa during the early Triassic, some 245 million years ago. A small, meter-long dicynodont, Lystrosaurus was a survivor of the Permian extinction, continuing this group of mammal-like reptiles into the Triassic. Fossil remains of Lystrosaurus are found in Antarctica and South America, as well as South Africa, indicating that these three continents were once gathered into a single landmass during the late Permian and early Triassic.

    Pastel on 140lb watercolor paper, 17.5 x 25 inches, 1988.  From the book Dinosaurs, A Global View, 1990.

    Original artwork: sold

    1369,960
    Direct Sale
  • Doswellia, Richmond Basin

    The image depicts a tropical, late Triassic flora of the Richmond Basin rift zone in Virgina, some 225 million years ago. Various plants include the fern Clathopteris, the cycads Sphenozamites, Ctenophyllum and Macrotaeniopteris, the tree ferns Cyathoforma and Todites and various conifers. Doswellia, a crocodile-like pseudosuchian, basks on the opposite shore of a small stream as the small cydondont Boreogomphodon crosses a nearer fallen tree fern stalk.

    Pencil and graphite dust on 2-ply bristol, 15 x 24 inches, 1992.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available for sale, please inquire

    1440,906
    Direct Sale
  • Lagosuchus and Probelesodon

    The little thecodont Lagosuchus stands motionless an understory of ferns beneath a seed fern, hiding from a searching Probelesodon. Probelesodon was a cynodont, an advanced mammal-like reptile. The scene is in South America during the Middle Triassic, some 230 million years ago. The thecodonts were an advanced group of reptiles widespread in the early Mesozoic and Lagosuchus shows anatomical features suggesting an evolutionary link to early dinosaurs.

    Pastel on 140lb watercolor paper, 13 x 14.75 inches, 1994.  From the children's book How Dinosaurs Came to Be, 1995.

    Original artwork: available for sale, pleae inquire

    839,960
    Direct Sale
  • Cymbospondylus

    The image depicts the primitive ichthyosaur Cympospondylus, a marine reptile found in 230 million year old middle Triassic marine sediments in Nevada.

    Pastel on 140lb watercolor paper, 18 x 24 inches, 1992.  Commissioned by Natural History Magazine, 1992.

    Original work: available for sale, please inquire

    730,960
    Direct Sale
  • Thrinaxodon

    An adult Thrinaxodon with three young in South Africa during the early Triassic, some 240 million years ago. Thrinaxodon was a cynodont, a group of advance mammal-like reptiles that survived the Permain extinction and continued to develop anatomical features resembling those of some modern mammals--including a complex battery of teeth, mammal-like features of the jaw and skull and overall changes to the skeleton that allowed more upright posture and efficient locomotion.

    Pastel on 140lb watercolor paper, 13 x 14.75 inches, 1994.  from the children's book How Dinosaurs Came to Be, 1995.

    Original work: available for sale, please inquire

    792,900
    Direct Sale
  • Lower Fissure Filling Reptiles
    A Clevosaurus returns the bite as it's carried off by a Terrestisuchus on an arid island on the margins of a new Atlantic Ocean.  A small Planocephalosarus is in the foreground, with Pagiophyllum foliage.

    Pencil and graphite dust on 2-ply bristol paper, 12.5 x 18.5 inches, 1992.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available, please inquire
    1423,960
    Direct Sale
  • Moschorhinus, South Africa

    Moschorinus, a dog-sized, mammal-like reptiles from the Triassic Katberg Formation, overlooks a red, arid landscape in South Africa.

    Pastel on 140lb watercolor paper, 13 x 24 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available for sale, please inquire

    900,490
    Direct Sale
  • Coelophysis Group

    A large group of Coelophysis, 10 foot long dinosaurs common to the southwestern US during the late Triassic some 225 million years ago, pass through a conifer forest. A bone bed composed mostly of fossil Coelophysis remains, including many articulated skeletons, was found at Ghost Ranch in northern New Mexico, suggesting these small dinosaurs were numerous and may have congregated in large groups.

    Pastel on 140lb watercolor paper, 19.5 x 24 inches, 1995.  From the children's book Dinosaur Ghosts, pub. in 1997.

    Original artwork: sold

    1174,960
    Direct Sale
  • Coelophysis, Flash Flood

    A large group of Coelophysis, small Triassic dinosaurs, are caught in a flash flood in New Mexico some 225 million years ago. The scene represents a common, natural event to account for a bone bed composed of many Coelophysis individuals located near Ghost Ranch, New Mexico.

    Pastel on 140lb watercolor paper, 18.25 x 22 inches, 1996.  From the children's book Dinosaur Ghosts, pub. in 1997.

    Original artwork: sold

    900,688
    Direct Sale
  • Tanystropheus and Logs
    Small, long-necked Tanystropheus swim about a log on the bottom of a river channel in Petrified Forest during the Triassic.

    Pencil and graphite dust on 2-ply bristol paper, 18 x 24.5 inches, 1984.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    709,960
    Direct Sale
  • Tanytrachelos and Turseodus

    The small aquatic reptile Tanytrachelos in a warm, freshwater pond together with the 6 inch predatory fish Turseodus in Petrified Forest National Park during the late Triassic, some 225 million years ago. Visible on the idealized pond bottom below drifting pillars of algae are the scattered leaves of the fern Clathopteris, the cycad-like leaves of Zamites, small horsetails and various detritus representing the disassociated fossil plant remains as they are found in the park's finer stream and pond deposits.

    Pastel on 140lb watercolor paper, 12.5 x 18.25 inches, 1984.  From Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold

    664,960
    Direct Sale
  • Xenacanthus and Neocalamites
    Xenacanthus, a small fresh water shark, passes through stands of the large horsetail Neocalamites in a flooded channel in Triassic Petrified Forest.

    Pastel and Prisma on 140lb watercolor paper, 14 x 19.5 inches, 1984.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    1336,960
    Direct Sale
  • Sharks and Lungfish
    Two Xenacanthus, freshwater sharks, feed on a dead lungfish in a pond during the late Triassic of Petrified Forest.

    Pencil and graphite dust on 2-ply bristol, 12.5 x 18.25 inches, 1984.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    659,960
    Direct Sale
  • Fish and Freshwater Snails
    The heavy-scaled freshwater fish Hemicalypterus swims among several smaller Semionotus.  Small, freshwater snails feed on pillars of algae.

    Pencil and graphite dust on 2-ply bristol paper, 14 x 19 inches, 1984.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    713,960
    Direct Sale
  • Postosuchus and Placerias

    The scene depicts the large terrestrial thecodont reptile Postosuchus shadowing a group of Placerias. Placerias was a dicynodont--buffalo-sized, plant-eating, mammal-like reptiles that survived into the late Triassic in Arizona some 225 million years ago. Brightly lit ginkgo trees grow below the large conifers now found as fossil logs in Petrified Forest National Park.

    Pencil and graphite dust on 2-ply bristol, 19 x 24.5 inches, 1986.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Orginal artwork: sold

    1230,960
    Direct Sale
  • Synorichtys and Neocalamites
    The small, freshwater fish Synorichtys swims about the broken trunk of the large horsetail Neoclamites in a stream with a pebble channel floor and freshwater clams.

    Pastel and Prisma on 140lb watercolor paper, 14 x 16 inches, 1985.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    849,960
    Direct Sale
  • Phytosaurs and Tornado

    Two species of phytosaurs stride for the protection of the water as a small tornado sweeps over a river lined with conifers in Petrified Forest National Park during the late Triassic, some 225 million years ago. Phytosaurs, unrelated to crocodiles and alligators, were one group of thecodonts, advanced reptiles, that pioneered an aquatic, fish-eating niche when primitive crocodiles were small terrestrial reptiles. Phytosaurs became extinct at the end of the Triassic and their aquatic mode was adopted by crocodiles in the Jurassic--up to today.

    Pencil and graphite dust on 2-ply bristol paper, 17.75 x 24.5 inches, 1986.  For the book Dawn of the Dinosaurs, pub by the Perified Forest Museum Association, 1988.

    Original artwork: sold

    1322,960
    Direct Sale
  • Liliensteinus and Plateosaurs

    Lilliensteinus, a larger, coelophysis-like predator scavanges at night among a herd of dead Plateosaurs mired in a muddy bog.

    Pastel on 140lb watercolor paper, 13 x 24.5 inches, 1990.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available for sale, please inquire

    900,489
    Direct Sale
  • Longisquama

    Longisquama, a small reptile of somewhat uncertain reconstruction lies dead on a forest floor littered with leaves of various Triassic conifers, podocarps and ginkgo, together with carnivourus beetles and a sawfly.  The scene represents the mid-Triassic Madygen Formation of Kyrgyzstan, some 230 million years ago and shows Longisquama as it is found in its obscurely arranged fossil form.

    Marshal oils on matte photographic paper, 13.7 x 19 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: sold

    1121,800
    Direct Sale
  • Chanaresuchus

    A lone Chanaresuchus, a small thecodont, traveres the ash covered banks of a river during the eruption of a distant volcano in mid-Triassic Argentina, some 230 million years ago.

    Pastel on 140lb watercolor paper, 18 x 25 inches, 1992.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006

    Orginal artwork: available for sale, please inquire

    1250,900
    Direct Sale
  • Three Pterosaurs and Tree
    Pterosaurs flutter and glide about the open branches of a large conifer, the tree the central character of a children's story about a its life and its final rest in Petrified Forest during the late Triassic.

    Pastel on 140lb watercolor paper, 16.75 x 22 inches, 1993.  From the children's book Dinosaur Tree, pub. by Bradbury Press, 1994.

    Original artwork: available, please inquire
    735,960
    Direct Sale
  • Chindeosaurs and Moon

    Two Chindeosaurs, small, primitive dinosaurs, run by moonlight across a fallen tree that spans a stream channel in the Mogollon Highlands, upstream of Petrified Forest National Park during the late Triassic, some 225 million years ago.

    Pastel on 140lb watercolor paper, 16.75 x 22 inches, 1993.  From the children's book Dinosaur Tree, 1994.

    Original artwork: sold

    732,960
    Direct Sale
  • Coelophysis and Logs

    Two Coelophysis, small dinosaurs, hunt in a ground cover of ferns among stream transported trees left by periodic flooding of a Triassic river in Petrified Forest National Park, some 225 million years ago.

    Pastel on 140lb watercolor paper, 16.75 x 22 inches, 1993.  From the children's book Dinosaur Tree, 1994.

    Original artwork: sold

    738,960
    Direct Sale
  • Coelophysis Feet

     A small, juvenile phytosaur walks along a freshwater pond bottom past the pillar-like legs of the small dinosaur Coelophysis and stalks of the large horsetail Neocalamites. Suggesting a possible Coelophysis diet are small fish, freshwater clams and a crayfish, all creatures represented by fossils from the Chinle Formation, freshwater stream and river deposits which make up brightly colored sediments seen today across much of the southwest US.

    Pastel on 140lb watercolor paper, 8.25 x 22 inches, 1996.  From Dinosaur Ghosts, 1997.

    Original atrwork: sold

    1400,529
    Direct Sale
  • Two Coelophysis

    Two Coelophysis race across a small stream within a forest of Triassic conifers in New Mexico, some 225 million years ago.

    Pastel on toned pastel paper, 18 x 24.5 inches, 1987.  Commisioned by the Ruth Museum.

    Original artwork: sold

    1298,960
    Direct Sale
  • Coelophysis and Eruption
    A group of Coelophysis huddle on the banks of a river in Triassic New Mexico during the eruption of a distant volcano.

    Pastel on 140lb watercolor paper, 7.4 x 28.4 inches, 1995.  From the book, Dinosaur Ghosts, The Mystery of Coelphysis, pub. by Dial, 1997.

    Original artwork: available, please inquire
    1440,530
    Direct Sale
  • Gigantitan and Zeunerophieba

    The image depicts the foot long insect Gigantitan stalking a Zeunerophiebia in the branches of a Ginkgo tree in Kyrgyzstan during the mid-Triassic, some 230 million years ago.

    Pencil and graphite dust on 2-ply bristol, 12.625 x 18.0625 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006

    Original artwork: available for sale, please inquire

    1200,848
    Direct Sale
  • Macrocnemus and Sea Cave

    The image depicts two Macrocnemus contesting over Dactylosaurus, a small nothosaur, within a sea cave at low tide in Poland during the mid-Triassic, some 230 million years ago.

    Pastel on 140lb watercolor paper, 16 x 25 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Orginal artwork: available for sale, please inquire

    1394,900
    Direct Sale
  • Triops and Pericentrophorus

    The small fish Pericentrophorus hovers near the shadow of a surface bubble cast on a shallow, brackish pond bottom with various invertebrates--several Triops and a Euthycarcinus--and a frond of Pteridophylla, a seed fern during Gres A Voltzia Formation time in Triassic france.

    Pastel on 140lb water color paper, 14.5 x 17 inches, 1990.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available for sale, please inquire

    1110,960
    Direct Sale
  • Scorpion and Milliped

    A small scorpion stalks a millipede in a stand of ferns and aethophyllum (small shore plants) amidst primitive conifer leaves and cones littered around a brackish pool near the shores of a sea coast in France during the Triassic, some 230 million years ago.

    Pencil and graphite dust on 2-ply bristol, 14 x 21 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: sold

    1193,800
    Direct Sale
  • Horseshoe Crab and Crayfish

    The image represents brackish pool deposits from the Gres a Voltzia Formation near the early Atlantic shore of Triassic France some 230 million years ago. Trapped in a transient pool are fragments of shore plants and various conifer limbs, leaves and a cone, together with the small fish Dipteronotus, a small crayfish, a horseshoe crab and numerous small jellyfish.

    Pastel on 140lb watercolor paper, 17 x 22 inches, 1990.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available for sale, please inguire

    1200,937
    Direct Sale
  • Mount Potts, New Zealand

    A Triassic New Zealand landscape of conifer forests, braided streams and gravel outwash deposits in a southern high latitude temperate climate.

    Pastel on 140lb watercolor paper, 17 x 26 inches, 1990.  from the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: availble for sale, please inquire

    1369,900
    Direct Sale
  • Chinle Forest After a Storm
    A lower Chinle Forest of Triassic conifers borders the banks of a braided stream crossing the lowlands of Petrified Forest.

    Pastel, on 140lb watercolor paper, 16.5 x 21 inches, 1986.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    1229,960
    Direct Sale
  • Congress of Metoposaurs

    A congress of Metoposaurs, large, 10-foot long amphibians, basking in a freshwater marsh in Petrified Forest National Park during the late Triassic, some 225 million years ago. Metoposaurs belonged to a group of amphibians that survived the Permian extinction and persisted well into the early Mesozoic.

    Pencil and graphite dust on 2-ply bristol, 18 x 24 inches, 1986.  From Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold

    1280,960
    Direct Sale
  • Phytosaurs and Coelophysis

    A group of phytosaurs lie among a clutter of various species of conifers found in Petrified Forest National Park--Araucarioxylon, Woodworthia and Schilderia. A trio of Coelophysis run along the river's edge against a back drop of large, flood-deposited logs.

    Pencil and graphite dust on 2-ply bristol, 18 x 24.75 inches, 1986.  From Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold

    1237,900
    Direct Sale
  • Typothorax
    Typothorax, a late Triassic aetosaur, wanders through a burned patch of lowland forest in Petrified Forest.

    Ink and watercolor on 140lb watercolor paper, 10.1 x 14.2 inches, 2015.  From the new reprint of Dawn of the Dinosaurs, The Late Triassic in the American Southwest, pub. by the Petrified Forest Museum Association, 2015.

    Original artwork: sold
    1347,960
    Direct Sale
  • Pterosaur in Forest
    A small pterosaur wings through a Triassic forest of large conifers, horsetails and cycads.

    Pastel on 140lb watercolor paper, 12.5 x 16.5 inches, 1986.  From the book, Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Assoc., 1988.

    Original artwork: sold
    734,960
    Direct Sale
  • Rutiodons

    Large phytosaurs, Rutiodon lithodendrorum, an aquatic thecodont reptile from the late Triassic, rest along scoured banks of a stream in Petrified Forest National Park some 225 million years ago.

    Pencil and graphite dust on 2-ply bristol, 20 x 28.5 inches, 1988.  From Dinosaurs, A Global View, 1990.

    Original artwork: sold

    1374,960
    Direct Sale
  • Postosuchus and Typothorax

    Two Postosuchus contest for a felled Typothorax among flood-deposited conifer trunks along the banks of a stream in Petrified Forest National Park during the late Triassic, some 225 million years ago. Mud casts of the large horsetail Neoclalamites are visible in the foreground, surrounded by the shore plant Pelourdea.

    Pastel on 140lb watercolor paper, 15.25 x 24.25 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: sold

    1440,906
    Direct Sale
  • Postosuchus & Desmatosuchus

    Postosuchus, a large terrestrial carnivorous thecodont, toys with a small, armored Desmatosuchus, a herbivorous thecodont, in Petrified Forest National Park during the late Triassic, some 225 million years ago. Thecodonts were advanced reptiles that dominated the fauna of the late Triassic and from which dinosaurs are thought to have developed. The flora of Petrified Forest is represented by various ferns, cycad leaves and trunks, tree ferns and large conifers.

    Pencil and graphite dust on 2-ply bristol, 17 x 21 inches, 1986.  From Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold

    1185,960
    Direct Sale
  • Riojosaurus

    Three Riojasaurus, Triassic prosauropods, amble along the banks of a stream in a forest of Araucaria (monkey puzzle) in Argentina some 225 million years ago.

    Pastel on 140lb watercolor paper, 13 x 24 inches, 1993.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: sold

    1400,762
    Direct Sale
  • Sphenosuchid and Sea Coast

    A small, three foot long sphenosuchid, an early terrestrial crocodile, scampers along the rocky sea coast of an island in Great Britain during the Triassic, some 230 million years ago.

    Oil on sealed 140lb watercolor paper, 16.375 x 24 inches, 2003.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: sold

    1307,900
    Direct Sale
  • Freshwater Coelacanth

    A large, freshwater Coelacanth swims beneath logs settling to the bottom of a river in a Triassic lowland basin in Petrified Forest National Park.

    Lithograph on Arches Cover, 14 x 18 inches, 1985.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Assoc., 1988.


    748,960
    Direct Sale
  • Nothosaurs, Tethys Sea

    Two species of large nothosaurs--Nothosaurus miirabilis and Simosaurus guilieluni-- squabble over the fish Birgeria in the Tethys Sea of Triassic Germany, some 230 million years ago.

    Pencil and graphite dust on 2-ply bristol, 15 x 21.625 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: availble for sale, please inquire

    1290,900
    Direct Sale
  • Shonosaurs
    Shonosaurs, ichthyosaurs that lived in the Triassic sea that once reached to the western margins of Nevada.

    Pastel on 140lb watercolor paper, 16 x 22 inches, 1988.  From the book Dinosaurs, a Global View, 1990.

    Original artwork: available, please inquire
    699,960
    Direct Sale
  • Placerias in Forest Uplands
    A group of Placerias, mammal-like reptiles, pass by a young conifer in uplands above the floodplains of Petrified Forest during the late Triassic.

    Pastel on 140lb watercolor paper, 11 x 17 inches, 1993.  From the children's book, Dinosaur Tree, pub. by Bradbury Press, 1994.

    Original artwork: available for sale, please inquire
    1440,927
    Direct Sale
  • Postosuchus and Bolt
    A Postosuchus, the large carnivorous thecodont of Triassic Petrified Forest, crosses a river channel on a fallen conifer, illuminated by a bolt of lightning.

    Pencil and graphite dust on 2-ply bristol paper, 12.5 x 18 inches, 1985.  From the book Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association, 1988.

    Original artwork: sold
    671,960
    Direct Sale
  • Rutiodon and Triassic Flora

    A large Rutiodon lithodendrorum, a phytosaur, rests in a lowland freshwater environment of Petrified Forest National Park in Arizona during the late Triassic, some 225 million years ago. The small leaping dinosaurs are Reveultosaurs--or were. This little dinosaur was thought present among the Chinle fauna of Petrified Forest on the interpretation of some fossil teeth found in the park 25 years ago. More recently, however, the teeth have been determined to belong to a species of aetosaur (a non-dinosaur thecodont armoured reptile). So POOF!, Reveultosaurus has ceased to exist and this illustration is itself now a remnant fossil of an old, extinct idea. Otherwise, the image fairly represents the Triassic flora of Petrified Forest NP, including large conifers, various tree ferns, ferns, horsetails and cycads.

    Pencil and graphite dust on 2-ply bristol, 18 x 27 inches, 1986.  From Dawn of the Dinosaurs, pub. by the Petrified Forest Museum Association. 1988.

    Original artwork: sold

    1611,1080
    Direct Sale
  • Postosuchus and Desmatosuchus

    The large, terrestrial thecodont Postosuchus attacks a Desmatosuchus, an armoured, planting-eating aetosaur (another kind of thecodont) in Arizona during the late Triassic some 225 million years ago. Thecodonts were a diverse group of advanced reptiles that dominated the early Mesozoic, reptiles from which dinosaurs are thought to have developed. A large log floats past, carried by storm runoff from forested uplands. Stream transport during Triassic storm events accounts for many of the numerous fossil logs today weathering from the brightly colored stream deposits in Petrified Forest National Park.

    Pastel on 140lb watercolor paper, 16.75 x 22 inches, 1993.  From the children's book Dinosaur Tree, pub. by Bradbury Press, 1994.

    Original artwork: availble for sale, please inquire

    740,960
    Direct Sale
  • Trilophosaur and Aetosaur
    A Trilophosaur perches on a conifer branch above a passing Rioarribasuchus within a Triassic floodplain in Petrified Forest.

    Pencil and graphite dust on 2-ply bristol, 17 x 21 inches, 2015.  Done for the updated Dawn of the Dinosaurs: The Late Triassic in the American Southwest, pub. by the Petrified Forest Museum Assoc. 2015.

    Original artwork: available, please inquire
    778,960
    Direct Sale
  • Ornithosuchus and Hyperodapedons

    The advanced reptile Ornithosuchus passes several Hyperodapedons, rhynchosaurs, denuding cycads within a flood plain covered by drifting sand dunes of the Elgin Formation in Triassic Scotland.

    Pastel on 140lb watercolor paper, 16 x 22 inches, 1988.  From the book Dinosaurs, A Global View, 1990.

    Original artwork: sold

    703,960
    Direct Sale
  • Erythrosuchus and Euparkeria

    The advanced reptile Erythrosuchus rests in a dry stream channel lined with seed ferns as two Eurparkeria scavange the dead amphibian Trematosuchus during the time of the Burgersdorf Formation of Triassic South Africa. 

    Pastel on 140lb watercolor paper, 17 x 22 inches, 1992.  From the book Dawn of the Dinosaurs, pub by Indiana Univ. Press, 2006.

    original artwork: sold

    1234,960
    Direct Sale
  • Ornithosuchus

    The advanced reptile Ornithosuchus climbs a sand dune during Elgin Formation time in Triassic Scotland.

    Pastel on 140lb watercolor paper, 13 x 24 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: available for sale, please inquire

    1440,780
    Direct Sale
  • Lungfish and Nothosaurs
    In brackish waters of Triassic Germany, a large lungfish, Ptychoceratodus, passes a troupe of small nothosaurs, Neusticosaurus, among fragments of horsetails and cycad-like plants.

    Pencil and graphite dust on 2-ply bristol, 14 x 21.125 inches, 1991.  From the book Dawn of the Dinosaurs, pub. by Indiana Univ. Press, 2006.

    Original artwork: sold
    1440,956
    Direct Sale
  • Phytosaur and Fabrosaurs
    A large Rutiodon, a phytosaur, lumbers down a dry stream channel as small dinosaurs, Fabrosaurs, pass by.  In the early 1980's, fossil teeth found in Chinle sediments of Petrified Forest were identified as those of a small dinosaur named Fabrosaurus.  Decades later, the teeth were determined to have come from a species of aetosaur, an armored thecodont.

    Pencil and graphite dust on 2-ply bristol, 14.25 x 20.5 inches, 1985.  With the Fabrosaurs digital removed, the illustration was included in the updated Dawn of the Dinosaurs: The Late Triassic in the American Southwest, pub. by the Petrified Forest Museum Assoc. 2015.

    Original artwork: sold
    1358,960
    Direct Sale
  • Coelophysis and Lizard
    In Triassic New Mexico, a Coelophysis chases a small lizard.

    Pastel on 140lb watercolor paper, 13 x 14.75 inches, 1994.  Done for the book How Dinosaurs Came to Be, 1995.

    Original artwork: sold

    844,960
    Direct Sale
  • Pisanosaurus
    The small dinosaur Pisanosaurus wanders among large conifers in a Triassic Forest in Argentina.

    Pastel on 140lb watercolor paper, 16.5 x 22.5 inches, 1988.  Done for the book Dinosaurs, A Global View, 1990.

    Original artwork: available, please inquire
    709,960
    Direct Sale
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