epoccipital
Any of a group of bones, of no obvious function, that lined the frills of ceratopsid dinosaurs

epoccipitals
plural of epoccipital

hood
A covering for the head, usually attached to a larger garment such as a jacket or cloak.
A covering for the head, usually attached to a larger garment such as a jacket or cloak.
A distinctively colored fold of material, representing a university degree.
An enclosure that protects something, especially from above.
Particular parts of conveyances
Particular parts of conveyances
Particular parts of conveyances
Particular parts of conveyances
Particular parts of conveyances
Various body parts
Various body parts
Various body parts
Various body parts

hoods
plural of hood

pachyrhinosaurin
Any of the dinosaurs of the tribe †Pachyrhinosaurini, a clade of centrosaurine ceratopsids.

pachyrhinosaurins
plural of pachyrhinosaurin

pachyrostran
Any ceratopsid dinosaur of the clade Pachyrostra

pachyrostrans
plural of pachyrostran

protoceratopsian
Synonym of protoceratopsid.

protoceratopsians
plural of protoceratopsian

protoceratopsid
Any dinosaur in the family Protoceratopsidae.

protoceratopsids
plural of protoceratopsid

psittacosaurus
Any of several dinosaurs, of the genus Psittacosaurus, that lacked horns

psittacosauruses
plural of psittacosaurus

torosaurus
Any member of the genus †Torosaurus of herbivorous dinosaurs.

torosauruses
plural of torosaurus

triceratops
Common name of the extinct genus Triceratops; herbivorous ceratopsids from the late Cretaceous.

triceratopses
plural of triceratops

arthropterygium
Any ichthyosaur of the genus Arthropterygius

baracromian
Any of the clade †Baracromia of extinct ichthyosaurs.

baracromians
plural of baracromian

enaliosaur
One of the Enaliosauria (now known as the ichthyosaurs or sauropterygians.

enaliosaurs
plural of enaliosaur

forefin
Either of the anterior (front) pair of fins of an ichthyosaur

forefins
plural of forefin

hindfin
Either of the posterior (rear) pair of fins of an ichthyosaur

hindfins
plural of hindfin

ichthyopterygian
Any of the superorder †Ichthyopterygia of extinct marine reptiles, superficially resembling dolphins.

ichthyopterygians
plural of ichthyopterygian

ichthyosaur
Any fishlike marine reptiles of the extinct order †Ichthyosauria of the early Triassic to the late Cretaceous period, that had a body somewhat like a porpoise.

ichthyosauri
plural of ichthyosaurus

ichthyosaurian
Of or relating to the Ichthyosauria.

ichthyosaurians
plural of ichthyosaurian

ichthyosaurid
Any member of the family Ichthyosauridae.

ichthyosaurids
plural of ichthyosaurid

ichthyosauriform
Any extinct reptile similar to an ichthyosaur

ichthyosauriforms
plural of ichthyosauriform

ichthyosauromorph
Any extinct marine reptile of the clade †Ichthyosauromorpha

ichthyosauromorphs
plural of ichthyosauromorph

ichthyosaurs
plural of ichthyosaur

latipinnate
Having broad, relatively short flippers.

latipinnates
plural of latipinnate

leptonectid
Any ichthyosaur of the family Leptonectidae

leptonectids
plural of leptonectid

longipinnate
Having long, extended flippers.

longipinnates
plural of longipinnate

mixosaurid
Any ichthyosaur in the family Mixosauridae.

mixosaurids
plural of mixosaurid

neoichthyosaur
Any ichthyosaur of the former clade Neoichthyosauria

neoichthyosaurian
Any ichthyosaur of the clade Neoichthyosauria

neoichthyosaurians
plural of neoichthyosaurian

neoichthyosaurs
plural of neoichthyosaur

ophthalmosaur
Any of the genus †Ophthalmosaurus of ichthyosaurs.

ophthalmosaurid
Any ichthyosaur of the family Ophthalmosauridae

ophthalmosaurids
plural of ophthalmosaurid

ophthalmosaurs
plural of ophthalmosaur

parvipelvian
Relating to ichthyosaurs of the clade Parvipelvia

parvipelvians
plural of parvipelvian

shastasaurid
Any extinct ichthyosaur in the family Shastasauridae.

shastasaurids
plural of shastasaurid

stenopterygiid
Any ichthyosaur in the family Stenopterygiidae.

stenopterygiids
plural of stenopterygiid

temnodontosaurid
Any ichthyosaur in the family Temnodontosauridae.

temnodontosaurids
plural of temnodontosaurid

thunnosaur
Any ichthyosaur of the clade Thunnosauria

thunnosaurian
Any extinct ichthyosaur of the taxon Thunnosauria.

thunnosaurians
plural of thunnosaurian

thunnosaurs
plural of thunnosaur

amphisbaenian
Any member of the Amphisbaenia, the clade of worm lizards.

amphisbaenians
plural of amphisbaenian

amphisbaenid
Any member of the Amphisbaenidae; a worm lizard.

amphisbaenids
plural of amphisbaenid

amphisbenian
Alternative form of amphisbaenian.

amphisbenians
plural of amphisbenian

autarchoglossans
plural of autarchoglossan

horned lizard
Any of some 14 species of lizard in the genus Phrynosoma, generally with wide toad-shaped bodies less than a foot long, noted for the horny structures on their heads.

horned lizards
plural of horned lizard

lacertid
Any lizard of the family Lacertidae.

lacertids
plural of lacertid

regal horned lizard
Phrynosoma solare, a horned lizard, with a wide toad-shaped body about seven inches long, noted for the ten horns that form a crown-like structure on its head.

regal horned lizards
plural of regal horned lizard

slow worm
Alternative form of slowworm.

slow worms
plural of slow worm

slow-worm
Alternative form of slowworm.

slow-worms
plural of slow-worm

toad-headed agama
Alternative form of toadhead agama

toad-headed agamas
plural of toad-headed agama

worm lizard
Any of many small limbless burrowing tropical squamate reptiles, of the family Amphisbaenidae or of the superfamily or suborder Amphisbaenia, that resemble worms.

worm lizards
plural of worm lizard

halisaurine
Any extinct marine squamate mosasaur of the subfamily Halisaurinae

halisaurines
plural of halisaurine

mosasaur
A large extinct marine reptile in the family †Mosasauridae, dominant marine predator of the Cretaceous. Mosasaurs are considered to belong to Squamata, the same group that includes lizards and snakes.

mosasaurid
Any member of the Mosasauroidea, an extinct superfamily of Late Cretaceous lizards including the mosasaurs and aigialosaurs.

mosasaurids
plural of mosasaurid

mosasaurine
Any extinct squamate mosasaur of subfamily Mosasaurinae

mosasaurines
plural of mosasaurine

mosasauroid
Any extinct aquatic reptile of the superfamily Mosasauroidea, variously interpreted as related to or belonging to the lizards or the snakes.

mosasauroids
plural of mosasauroid

mosasaurs
plural of mosasaur

pannoniasaur
Any tethysaurine mosasauroid of the genus Pannoniasaurus

pannoniasaurs
plural of pannoniasaur

plioplatecarpine
Any squamate mosasaur of the subfamily Plioplatecarpinae

plioplatecarpines
plural of plioplatecarpine

squamate
Covered in scales.

squamates
plural of squamate

tethysaurine
Any mosasauroid of the genus †Tethysaurus

tethysaurines
plural of tethysaurine

tylosaur
Alternative form of tylosaurine.

tylosaurine
Any mosasaur of the subfamily Tylosaurinae

tylosaurines
plural of tylosaurine

tylosaurs
plural of tylosaur

edmontosaur
Any hadrosaurid dinosaur of the genus Edmontosaurus.

edmontosaurs
plural of edmontosaur

euornithopod
Any ornithischian dinosaur of the taxon Euornithopoda

euornithopods
plural of euornithopod

hadrosaur
Any ornithopod dinosaur of the family Hadrosauridae.

hadrosaurian
Any bipedal dinosaur of the genus Hadrosaurus

hadrosaurians
plural of hadrosaurian

hadrosaurid
Any of the family Hadrosauridae of duck-billed dinosaurs; a hadrosaur.

hadrosaurids
plural of hadrosaurid

hadrosauriform
Belonging to the Hadrosauriformes.

hadrosauriforms
plural of hadrosauriform

hadrosauroid
Any dinosaur of the superfamily Hadrosauroidea

hadrosauroids
plural of hadrosauroid

hadrosaurs
plural of hadrosaur

hypsilophodont
Any of the genus †Hypsilophodon of small ornithopod herbivorous dinosaurs.

hypsilophodontid
An informal grouping of small ornithopod dinosaurs, regarded as fast, herbivorous bipeds on the order of 1–2 meters long (3.3-6.6 feet).