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: sold

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

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: sold

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

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: sold

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: sold

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 for sale:  $1800.00--price includes framing and shipping.  Inquire at earthhistory@in-tch.com

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

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

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

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

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

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

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

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: sold

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: available, please inquire

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

 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

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

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

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

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

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

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: sold

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

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

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

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

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

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

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

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

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.

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

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

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: sold

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

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

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

Original artwork: sold