What are Thecephalians?

Thecephalians ("Beast-Heads") were extinct subordinate therapsy Therapsy Therodiont (Permian/Triassic ancestors), who were among the dominant animals on the ground in half to the knowledge of Permian and early trias, up to 235 million years ago. Thecephalian fossils are dated between about 275 and about 235 million years ago. The large skulls and teeth of Thecephalians suggest that they were successful carnivores. Thecephalians had some early properties similar to mammals, including fur and beard. At least some species were distorted. At least one species ( Euchambersia ) had maximum pits and grooved Canniform teeth, testifying to the poison of the glands that would make Thecephalians the earliest well-known vertebrates. And replacing relatives who had previously branched such as other synapsides, including the famous pelycosaurs that disappeared in Mid-Permian. Thecephalians developed on Earth at a time when the synappers were dominant earthly animals for several tens of millions of years to move Karb faunaIt with a control amphibian.

Thececephalians are unique in that they are synappers that have begun their careers as dominant predators, culminated in ecosystems for about twenty million years, have barely survived the greatest mass extinction in the history of the planet (permman-triassic Elects, which is "TRIASS)," Triass, " Received, "Triass," "Triass is" Triass), "is that it is, that it is, that it is possible," triass), "triass" unknown. During that time it may have something to do with the growing arridite of the planet and prefer reptiles. The reptiles are excluded by Ukyselina instead of urea, a form of excretion, which preserves water more efficiently urea, which is now used by mammals and synappers (including Thecephalians) at that time.

Cynodonts, triasic ancestors of mammals, were other subordinate teratons related to TherocePhlians. Together both groups represented the strongerMore late permian/early triasic predators and omnivores, which corresponds to today's Carnivorans. Thecephalians WOULD HAVE FED ON PAREIASAURS, HERBIVOROUS ANAPSIDS (Reptiles Without Skull Holes, Like Turtles), Which Ranged in Size from 60 cm (22 in) to 3 M (10 ft), Tapinocephalians (Ton-Sized Synapsids with Thick Heads) (Rat-to-Ox-Sized Therapsids That Were Among the Most Successful Animals in the Immediarate of the Permian-Traiassic Extinction, in some places that represent 99% of all vertebrates).