Non-mammalian synapsids (therapsids) are represented only by the large traversodontid cynodont
Arctotraversodon plemmyridon (Hopson 1984; Sues et al.
Lead author Dr Marcello Ruta of the University of Lincoln of the study, said that mass extinctions are seen as entirely negative but in this case, cynodont
therapsids, which included a very small number of species before the extinction, really took off afterwards and was able to adapt to fill many very different niches in the Triassic - from carnivores to herbivores.
The scans showed that a young amphibian that suffered from broken ribs crawled into a burrow that belonged to a cynodont
, considered a distant ancestor of mammals.
Dental patterns and their geographical distribution, as suggested by Hanihara, (21) Turner, (22) and Schott and Turner, (12) by means of the study of 29 CDTMs (thirteen of which were considered in this study), classify human beings in five clusters: The Mongoloid dental complex formed by cynodont
and sundadont groups, the Caucasoid dental complex, formed by the groups from Western Eurasia (Europe, North Africa, the Middle East and India), the Saharan Africa dental complex (formed by the subgroups of Western Africa and South Africa, much more closed to the sundadont populations of the South Pacific), the groups of south Pacific or Oceania, and the American Paleoindians.
The scans showed cynodont
brains to be simple and relatively small, with tiny olfactory bulbs.
To sit and watch a cynodont
(a prehistoric dog) eat its young, to see a massive Plataeosaurus lumber across the wilderness, and to forget this is just animation is an indescribable experience.
Several authors have referred to these ridges as evidence for cynodont
1996), followed by rare remains of the tritheledontid cynodont
In July 1965, Bob Carroll, while collecting with Don, found a fragment of a very large dentary (YPM VPPU 019190) at Burntcoat, which proved to be the first record of a traversodont cynodont
from North America.
Studying a transect of Pangaea stretching from about three degrees south to 26 degrees north (a long swath in the center of the continent covering tropical and semiarid temperate zones), a team of scientists led by Jessica Whiteside at Brown University has determined that reptiles, represented by a species called procolophonids, lived in one area, while mammals, represented by a precursor species called traversodont cynodonts
, lived in another.
, extinct mamma-like reptiles that gave rise to true mammals, bore just such a trough.
The process of development can be traced by following the evolution of pelycosaurs (animals with spiked sails on their backs that resembled large Komodo dragons) to cynodonts
, whose jaws and related muscular features were much closer to those of mammals.