from the GNU version of the Collaborative International Dictionary of English
- n.pl. An extinct order of reptiles found in the Permian and Triassic formations in South Africa. In some respects they resembled carnivorous mammals. Called also Theromorpha.
from The Century Dictionary and Cyclopedia
- An order of extinct Reptilia, so called from the resemblance of the dentition in some respects to that of mammals.
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