pterodactyla defined in 1951 year

pterodactyla - pterodactyla (PTEROSAURIA);
pterodactyla - Fossil order of flying reptiles. Lived during Jurassic and Cretaceous. Membraneous wings supported mainly by greatly elongated fourth finger, and also by rest of arm. Many analogies in structure with birds, but independently developed, though both birds and pterodactyls evolved from the same group of non-flying reptiles.

near pterodactyla in Knolik

letter "P"
start from "PT"

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