Difference between revisions of "Ornithischia"

Ornithischia
Scientific classification
	Kingdom Information
Kingdom	Animalia
	Phylum Information
Phylum	Chordata
	Class Information
Infra-class	Archosauromorpha
	Order Information
Superorder	Dinosauria
Order	Ornithischia
Population statistics
Conservation status	Extinct

Revision as of 16:04, September 12, 2014

Ornithischia (also called: Predentata) is an order of Dinosaurs.

Taxonomy

Order Ornithischia

Family Pisanosauridae

Family Fabrosauridae

- Suborder Thyreophora

Infraorder Ankylosauria - armored dinosaurs

Family Ankylosauridae

Family Nodosauridae

Infraorder Scelidosauria - scute-armored dinosaurs

Family Scutellosauridae

Infraorder Stegosauria - plate-armored dinosaurs

Family Huayangosauridae

Family Stegosauridae

- Suborder Cerapoda

Family Heterodontosauridae

Infraorder Ornithopoda - duck-billed dinosaurs

Family Dryosauridae

Family Camptosauridae

Family Hypsilophodontidae

Family Hadrosauridae

Family Iguanodontidae

Infraorder Hypsilophodontia - small ornithopod dinosaurs

Family Hypsilophodontidae

Family Tenontosauridae

Family Thescelosauridae

Infraorder Pachycephalosauria - bone-headed dinosaurs

Family Pachycephalosauridae

Infraorder Ceratopsia - horned dinosaurs

Family Bagaceratopidae

Family Ceratopsidae

Family Chaoyangsauridae

Family Protoceratopsidae

Family Psittacosauridae

@@ Line 39: / Line 39: @@
 |conservation=Extinct
 }}
-'''Ornithischia''' or '''Predentata''' is one of two major orders of [[Dinosaur|dinosaurs]], and includes both bipedal and quadrupedal herbivorous animals, all of which share a pelvic structure similar to that of birds.
+'''Ornithischia''' (also called: '''Predentata''') is an order of [[Dinosaur|Dinosaurs]].
-==Description==
-The primary characteristic is the pelvic girdle, comprised of ilium, the ischium, and the pubis.  The process of the pubis points to the rear - as in birds - to allow for a long digestive tract.  A further shared characteristic is the presence of a predentary bone at the tip of the lower jaw, hence the other name for the order<ref>http://users.tamuk.edu/kfjab02/dinos/VPORNITHO.htm</ref>.  All ornithischians also bear a beak due to the rostral tip of premaxilla being toothless.
 ==Taxonomy==
@@ Line 61: / Line 58: @@
 :::Family Heterodontosauridae
 ::Infraorder Ornithopoda - duck-billed dinosaurs
+:::Family Dryosauridae
 :::Family Camptosauridae
-:::Family Dryosauridae
+:::Family Hypsilophodontidae
 :::Family Hadrosauridae
-:::Family Hypsilophodontidae
 :::Family Iguanodontidae
 ::Infraorder Hypsilophodontia - small ornithopod dinosaurs
@@ Line 78: / Line 75: @@
 :::Family Protoceratopsidae
 :::Family Psittacosauridae
-Due to head displays, some authorities accept the placement of the ceratopsid and pachycephalosaurid dinosaurs into the recently-created suborder Marginocephalia.
-==Evolutionary claims==
-Birds are claimed by evolution to be descended from theropod dinosaurs of the other major order Saurischia, due to similar structures in the wrist; despite being different, the "lizard-hipped" pelvic girdle of saurischians is never mentioned as a factor in the ancestry of birds.
-==References==
-<small><references/></small>
 [[Category:Dinosaurs]]

Ornithischia

Scientific classification
Kingdom Information
Kingdom	Animalia
Phylum Information
Phylum	Chordata
Class Information
Infra-class	Archosauromorpha
Order Information
Superorder	Dinosauria
Order	Ornithischia
Population statistics
Conservation status	Extinct

Difference between revisions of "Ornithischia"

Revision as of 16:04, September 12, 2014

Taxonomy

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