Lagerpetids

Part of speech: noun

Definitions

  1. A group of extinct small to medium-sized bipedal reptiles related to early dinosaurs characterized by specific skeletal features ; referring to a distinct family within archosaur ancestors significant in paleontological classification ; identifying a clade of Triassic-period creatures important for understanding dinosaur evolution and the emergence of bird-like traits
  2. An extinct taxonomic family of terrestrial archosaurs exhibiting early dinosaurian traits and bipedal locomotion ; denoting a category of Late Triassic reptiles known for their contribution to the study of dinosaur ancestry ; naming a fossil group that bridges the gap between primitive reptiles and more derived dinosaur species through anatomical traits
  3. A classification of prehistoric archosaur reptiles that walked on two legs and display features indicating a close evolutionary link to true dinosaurs ; describing archaeological findings of a reptilian group from the Triassic era significant to evolutionary biology ; marking a lineage of extinct reptiles studied for their role in the origin and diversification of dinosaurs and other archosaurs

Etymology: "Lagerpetids" is the plural of "lagerpetid," a term for members of a group of extinct reptiles that were close relatives of the dinosaurs. The word is built from the genus name Lagerpeton, which gives the family its name, and that genus name combines two Greek words: "lagṓs," meaning "hare," and "herpetón," meaning "reptile" or "creeping thing." The hare element is probably a reference to the animal's build or appearance, since the Greek root gave the name in a way that suggests a small, quick creature, but the exact reasoning behind the choice is not recorded. The genus is a classic example of a scientific coinage: the name was assembled from classical Greek roots to describe a newly discovered fossil, so the Greeks themselves never used it. The "-id" ending is the standard suffix that scientists attach to a genus name to form the name of a family or related group, which is why the plural form is used when discussing several members at once.