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ECHINERPETON

• Echinerpeton

Extinct genus of synapsids

Echinerpeton is an extinct genus of synapsid, including the single species Echinerpeton intermedium from the Late Carboniferous of Nova Scotia, Canada

Echinerpeton



Echinerpeton

• Eupelycosauria

Clade of synapsids

years ago during the Early Pennsylvanian epoch, with the fossils of Echinerpeton and perhaps an even earlier genus, Protoclepsydrops, representing just

Eupelycosauria



Eupelycosauria

• Archaeothyris

Extinct genus of synapsids

years ago, Archaeothyris, along with a more poorly known synapsid called Echinerpeton, are the oldest undisputed synapsids known. The name means ancient window

Archaeothyris



Archaeothyris

• Ophiacodontidae

Extinct family of synapsids

was a synapsid. Echinerpeton and Sterophallodon were included for the first time in a phylogenetic analysis by Benson (2012). Echinerpeton was found to be

Ophiacodontidae



Ophiacodontidae

• Therapsida

Clade of tetrapods including mammals

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Therapsida



Therapsida

• Dimetrodon

Genus of carnivorous synapsids from the Permian

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Dimetrodon



Dimetrodon

• Synapsida

Clade of tetrapods

known from both North America and Europe including Archaeothyris and Echinerpeton (both ophiaconodontids), as well as Dendromaia (a varanopid), though

Synapsida



Synapsida

• Ianthasaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ianthasaurus



Ianthasaurus

• Edaphosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Edaphosaurus



Edaphosaurus

• Milosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Milosaurus



Milosaurus

• Oedaleops

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Oedaleops



Oedaleops

• Niaftasuchus

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Niaftasuchus



Niaftasuchus

• Gordodon

Extinct genus of edaphosaurid synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Gordodon



Gordodon

• Reiszia

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Reiszia

Reiszia

• Sphenacodontia

Clade of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Sphenacodontia



Sphenacodontia

• Bohemiclavulus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Bohemiclavulus



Bohemiclavulus

• Sphenacodon

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Sphenacodon



Sphenacodon

• Caseidae

Extinct family of vertebrate animals

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Caseidae



Caseidae

• Eutheriodontia

Clade of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Eutheriodontia



Eutheriodontia

• Theriodontia

Clade of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Theriodontia



Theriodontia

• Edaphosauridae

Extinct family of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Edaphosauridae



Edaphosauridae

• Dimetrodon borealis

Extinct species of synapsid

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Dimetrodon borealis



Dimetrodon_borealis

• Ascendonanus

Extinct genus of varanopid amniote

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ascendonanus



Ascendonanus

• Cotylorhynchus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Cotylorhynchus



Cotylorhynchus

• Sphenacodontidae

Extinct family of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Sphenacodontidae



Sphenacodontidae

• Lupeosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Lupeosaurus



Lupeosaurus

• Haptodus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Haptodus



Haptodus

• Palaeohatteria

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Palaeohatteria



Palaeohatteria

• Macromerion

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Macromerion

Macromerion

• Tappenosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Tappenosaurus

Tappenosaurus

• Kenomagnathus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Kenomagnathus



Kenomagnathus

• Varanodon

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Varanodon



Varanodon

• Ctenospondylus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ctenospondylus



Ctenospondylus

• "Haptodus" garnettensis

Extinct species of synapsid

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

"Haptodus" garnettensis

"Haptodus"_garnettensis

• Varanopidae

Extinct family of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Varanopidae

Varanopidae

• Phreatophasma

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Phreatophasma



Phreatophasma

• Ophiacodon

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ophiacodon



Ophiacodon

• Nikkasauridae

Extinct family of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Nikkasauridae

Nikkasauridae

• Caseopsis

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Caseopsis

Caseopsis

• Mesenosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Mesenosaurus



Mesenosaurus

• Secodontosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Secodontosaurus



Secodontosaurus

• Chthomaloporus

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Chthomaloporus

Chthomaloporus

• Nitosaurus

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Nitosaurus

Nitosaurus

• Mnemeiosaurus

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Mnemeiosaurus

Mnemeiosaurus

• Protoclepsydrops

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Protoclepsydrops

Protoclepsydrops

• Casea

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Casea

Casea

• Varanops

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Varanops



Varanops

• Tetraceratops

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Tetraceratops



Tetraceratops

• Vaughnictis

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Vaughnictis



Vaughnictis

• Eothyrididae

Extinct family of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Eothyrididae



Eothyrididae

• Archaeovenator

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Archaeovenator



Archaeovenator

• Varanosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Varanosaurus



Varanosaurus

• Tambacarnifex

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Tambacarnifex

Tambacarnifex

• Watongia

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Watongia



Watongia

• Driveria

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Driveria

Driveria

• Stereophallodon

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Stereophallodon



Stereophallodon

• Caseasauria

Extinct clade of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Caseasauria



Caseasauria

• Steppesaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Steppesaurus



Steppesaurus

• Cabarzia

Extinct genus of lizard-like animals

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Cabarzia



Cabarzia

• Lamiasaurus

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Lamiasaurus

Lamiasaurus

• Aerosaurus

Extinct genus of tetrapod

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Aerosaurus



Aerosaurus

• Raranimus

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Raranimus



Raranimus

• Mycterosaurus

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Mycterosaurus



Mycterosaurus

• Dendromaia

Extinct genus of lizard-like animals

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Dendromaia

Dendromaia

• Gorgodon

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Gorgodon

Gorgodon

• Neosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Neosaurus



Neosaurus

• Alierasaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Alierasaurus



Alierasaurus

• Ennatosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ennatosaurus



Ennatosaurus

• Datheosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Datheosaurus



Datheosaurus

• Eocasea

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Eocasea



Eocasea

• Melanedaphodon

Edaphosaurid synapsid genus from the Late Carboniferous

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Melanedaphodon



Melanedaphodon

• Oromycter

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Oromycter

Oromycter

• Xyrospondylus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Xyrospondylus



Xyrospondylus

• Apsisaurus

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Apsisaurus



Apsisaurus

• Ctenorhachis

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ctenorhachis



Ctenorhachis

• Dimacrodon

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Dimacrodon



Dimacrodon

• Ianthodon

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ianthodon



Ianthodon

• Cutleria wilmarthi

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Cutleria wilmarthi



Cutleria_wilmarthi

• Pantelosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Pantelosaurus



Pantelosaurus

• Eothyris

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Eothyris



Eothyris

• Cryptovenator

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Cryptovenator



Cryptovenator

• Elliotsmithia

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Elliotsmithia



Elliotsmithia

• Angelosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Angelosaurus

Angelosaurus

• Remigiomontanus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Remigiomontanus



Remigiomontanus

• Stereorachis

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Stereorachis



Stereorachis

• Glaucosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Glaucosaurus



Glaucosaurus

• List of pelycosaurs

America and Germany Diopaeus Cope 1892 Syn. N/A N/A Synonym of Ophiacodon Echinerpeton Reisz 1972 Valid. Upper Carboniferous Canada Edaphosaurus Cope 1882 Valid

List of pelycosaurs

List_of_pelycosaurs

• Martensius

Extinct genus of synapsid

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Martensius



Martensius

• Clepsydrops

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Clepsydrops



Clepsydrops

• Heleosaurus

Extinct genus of tetrapods

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Heleosaurus



Heleosaurus

• Euromycter

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Euromycter



Euromycter

• Baldwinonus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Baldwinonus

Baldwinonus

• Palaeohatteriidae

Extinct family of Permian organisms

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Palaeohatteriidae



Palaeohatteriidae

• Ruthenosaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Ruthenosaurus

Ruthenosaurus

• Callibrachion

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Callibrachion



Callibrachion

• Mastersonia

Extinct genus of therapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Mastersonia

Mastersonia

• Eoscansor

Genus of varanopids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Eoscansor

Eoscansor

• Trichasaurus

Extinct genus of synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Trichasaurus

Trichasaurus

• Shashajaia

Genus of extinct non-mammalian synapsids

Metopophora †Ophiacodontidae Archaeothyris Baldwinonus Clepsydrops Echinerpeton Ophiacodon Stereophallodon Stereorhachis Varanosaurus Haptodontiformes

Shashajaia



Shashajaia

• 2019 in paleontology

States) by Haridy et al. (2019). Description of new skull remains of Echinerpeton intermedium and a study on the phylogenetic relationships of this species

2019 in paleontology

2019_in_paleontology

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