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Synapsid
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Megatherium sloth in a sitting position
Megatherium ground sloth walking, white background
Megatherium ground sloth, white background
Rear view of a Lystrosaurus dinosaur on white background
Lystrosaurus dinosaur, front view
Moschops dinosaur, rear view on white background
Inostrancevia dinosaur, front view on white background
Delphinognathus prehistoric synapsid, rear view
Delphinognathus prehistoric synapsid, front view
Delphinognathus head, close-up profile
Delphinognathus prehistoric synapsid, side view
Placerias, side view on white background
Two Dimetrodon reptiles fight over territory and
Edaphosaurus dinosaur, rear view
Edaphosaurus dinosaur, side profile
Edaphosaurus dinosaur, front view
Edaphosaurus dinosaur head close-up
Keratocephalus dinosaur, front view
Keratocephalus dinosaur portrait
Inostrancevia dinosaur, low angle front view
Dimetrodon reptile, front view
Dimetrodon reptile, white background
Bloody pencil sketch of Dimetrodon, Early Permian
Kannemeyeria dinosaur, rear view
Kannemeyeria dinosaur, side profile
Kannemeyeria dinosaur, front view
Kannemeyeria dinosaur head
Jonkeria dinosaur, side profile
Jonkeria dinosaur on white background
Jonkeria dinosaur head
Estemmenosuchus dinosaur on white background
Estemmenosuchus dinosaur, side profile
Estemmenosuchus dinosaur, front view
Estemmenosuchus dinosaur head
Estemmenosuchus dinosaur, rear view
Estemmenosuchus dinosaur, side profile
Estemmenosuchus dinosaur, front view
Estemmenosuchus dinosaur head
Cotylorhynchus dinosaur, rear view
Cotylorhynchus dinosaur, side profile
Cotylorhynchus dinosaur on white background
Cotylorhynchus dinosaur head
Size reference chart of various synapsids from
Doliosauriscus dinosaur on white background
Doliosauriscus dinosaur, side view
Doliosauriscus dinosaur, front view
Doliosauriscus dinosaur head
A group of Dimetrodon's hunting in a Permian era environment
Dimetrodon reptiles in a territorial dispute during
A Triassic period Plaerias, side view on white background
Kannemeyeria dinosaur with tusks, front view on
A pair of Lycaenops walking along shoreline during
A pair of Lycaenops hunting during the Permian Period
A group of Keratocephalus prehistoric animals
A pair of Jonkeria truculenta walking together
Inostrancevia drinking from a lake during the Permian Period
Inostrancevia tries to sink its fangs into the
Herrerasaurus, an early dinosaur, attacks a dicynodont
Estemmenosuchus uralensis in swamp
Doliosauriscus carnivore lets out a roar
A pair of Doliosauriscus carnivores walking along
A pair of Cotylorhynchus prehistoric reptiles in forest
Ulemosaurus prehistorica animal from the Permian
Ulemosaurus prehistorica animal from the Permian
Dimetrodon reptile from the Permian period, side
Lycaenops prehistoric animal from the Permian period
Jonkeria truculenta prehistoric animal, side view
Inostrancevia rearing up, side view on white background
Inostrancevia carnivore, side view on white background
Estemmenosuchus uralensis, side view on white background
Criocephalosaurus prehistoric animal
Cotylorhynchus prehistoric reptile, side view
A Triassic scene with the sailback Arizonasaurus
A collection of animals, prehistoric animals that
Ulemosaurus prehistorica animal from the Permian
Lystrosaurus prehistoric animal, side view on
Ulemosaurus prehistorica animal from the Permian
A collection of animals, fish and insects that
Two Inostrancevia dinosaurs go after a Keratocephalus
Dimetrodon predators stick together looking for
Lystrosaurus dinosaur, side profile
Lystrosaurus dinosaur, front view
A pair of Megatherium ground sloths on the move
Ischigualastia is a dicynodont from the Late Triassic period
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