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Page 2: Permian/Triassic Age Reptiles and Amphibians
Before the Dinosaurs, reptiles evolved into three main lineages. First were the Parareptiles. Parareptiles showed primitive features and would eventually have the turtles as its decendants.Therapsids showed many mammal like characteristics and would eventually evolve into the Mammals. Archosaurs included the thecodonts and would eventually evolve into the Dinosaurs, crocodilians and birds.

The Permian age was named for the Perm region in Russia which was famous for its fossils of that age. Other well known localities famous for their Permian faunas are South Africa and Texas and New Mexico.

Garjainia triplocostata
240 mya
Rassypnaya
Orenburg Region
Russia
Titanophoneus
potens

260-265 mya
Isheevo
Tatarstan
Garjainia was a Thecodont, an early representative of the Archisaurs, the group that eventually included the Dinosaurs and Crocodilians and replaced the Therapsids(mammal-like reptiles). Titanophoneus, a therapsid was the top predator of its time.
 
Biarmosuchus tener
260-265 mya
Ocher
Perm
Russia
Type specimen

Inostrancevia
alexandri

250-255 mya
Malaya Severia
Arkangesk Reg.
North Russia
Type Specimen

Biarmosuchus, the size of a large dog, was a primitive predatory therapsid. Inostrancevia was a large sabre-toothed gorganopsid predator that had a more upright stance than earlier therapsids.
 
Estemmenosuchus
uralensis

255 mya
Ocher
Perm
Russia
Estemmenosuchus
uralensis

255 mya
Ocher
Perm
Russia
Estemmenosuchus was a large plant eating Therapsid (Mammal-like reptile) characterised by large bumps or horns on its skull and a somewhat sprawling posture.
 

Rhadiodromus
klimova

230-235 mya
Berdyanka
Orenburg region
Russia

Lystrosaurus georgi
240 mya
Atashihka Nizhegorodskaya
Russia

Rhadiodromus was a large tusked mammal-like reptile of the early Triassic. Lystrosaurus appeared very early in the Triassic and spread very widely. Examples have been found from Russia, India, Africa, to Antarctica. A plant-eating therapsid, Lystrosaurus had large feet, useful in swampy areas..
 

Scutosaurus karpinski
250-255 mya
Sokolki
Arkangelsk
Russia

Scutosaurus karpinski
250-255 mya
Sokolki
Arkangelsk
Russia
Scutosaurus, a very large barrel chested aquatic parareptile, is part of the lineage that eventually gave rise to Turtles.
 
(L) Lanthosuchus warsoni
260-255 mya
Isheevo, Tatarstan
(R) Deltavjatia viatkensis
250-255 mya
Perm Region,

Parotosuchus
orenburgensis

235-245 mya
Orenburg region
South Russia
amphibian

 
Lanthosuchus was an aquatic parareptile with an extremely flattened skull. Deltavjatia was a terrestrial parareptile showing many turtle like features, particularly in its skull. Parotosuchus was an amphibian with a flattened skull and armored skin..
 
     

mya = million years ago
Type specimen is the original fossil on which the species is defined

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