pelycosaur
Noun
Meaning
large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America
Source: WordNetSynonyms
animal
mammoth
dicynodont
thecodont
synapsid
tapinocephalid
mammal-like reptile
therapsid
pareiasaurid
stem mammal
dinocephalian
gorgonopsid
anteosaurid
procolophonid
kannemeyeriid
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