Topic Navigator

Noun Tree | Nouns Groups | Verb Groups | Search

Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

living thing, animate thing go
a living (or once living) entity

organism, being go
a living thing that has (or can develop) the ability to act or function independently

animal, animate being, beast, brute, creature, fauna go
a living organism characterized by voluntary movement

chordate go
any animal of the phylum Chordata having a notochord or spinal column

vertebrate, craniate go
animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

reptile, reptilian go
any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms

diapsid, diapsid reptile go
reptile having a pair of openings in the skull behind each eye

archosaur, archosaurian, archosaurian reptile
extinct reptiles including: dinosaurs

noun.animal

6 Subcategories

dinosaur go
any of numerous extinct terrestrial reptiles of the Mesozoic era
pterosaur, flying reptile go
an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimb
thecodont, thecodont reptile go
presumably in the common ancestral line to dinosaurs and crocodiles and birds
ichthyosaur go
any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
plesiosaur, plesiosaurus go
extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs
nothosaur go
extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming