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| + | {{Italic title}}{{Taxobox |
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| + | | name = ''Heterodontosaurus'' |
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| + | | fossil_range = {{Geological range|199|196|Early Jurassic}} |
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| + | | image = Tumblr n2jsd5Pu7T1s7ehpoo1 500.jpg |
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| + | | image_caption = An artist's illustration of ''Heterodontosaurus tucki'' |
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| + | | image_width = 240px |
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| + | | regnum = [[Animal]]ia |
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| + | | phylum = [[Chordate|Chordata]] |
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| + | | classis = [[Sauropsida]] |
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| + | | clade1 = [[Dinosauria]] |
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| + | | ordo = †[[Ornithischia]] |
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| + | | familia = †[[Heterodontosauridae]] |
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| + | | subfamilia = †[[Heterodontosaurinae]] |
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| + | | genus = †'''''Heterodontosaurus''''' |
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| + | | genus_authority = Crompton & Charig, 1962 |
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| + | | subdivision_ranks = Referred species |
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| + | | subdivision = |
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| + | *{{extinct}}'''''Heterodontosaurus tucki''''' <br><small>(Crompton & Charig, 1962) (type)</small> |
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| + | }} |
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| + | '''Heterodontosaurus''' (meaning "different toothed lizard") is a genus of small omnivorous dinosaur with prominent canine teeth which lived in the Early Jurassic of South Africa. It was similar to a hypsilophodont in shape, and ate plants, despite its canines. ''Heterodontosaurus'' is currently known from specimens of the SAFM (South African Museum) from South Africa. There are two known morphologies of this genus, the second of which is thought by some to represent a different species. The type species, H. tucki, is from the Upper Elliot Formation of the Hettangian age, around 199-196 million years ago. |
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| + | ==Description== |
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| + | [[File:Heterodontosaurus-dinosaurs-23741446-750-250.jpg|thumb|200px|left]] |
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| + | ''Heterodontosaurus'' was a small, fleetfooted ornithischian that reached a maximum size of about 3 feet. It had a long, narrow pelvis and a pubis which resembled those possessed by more advanced ornithischians. More unusual was that the hand of ''Heterodontosaurus'' had five fingers, two of which seem to be opposable. This configuration allowed ''Heterodontosaurus'' to grasp and manipulate food. The bone in the foot and ankle were fused in a manner reminiscent of those in birds. |
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| + | ====Dentition==== |
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| ⚫ | |||
| + | [[File:Heterodontosaurus cast.jpg|thumb|200px|left]] |
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| ⚫ | |||
| ⚫ | Another interesting feature is the specialization of teeth which gave rise to the animal's name. Most dinosaurs (and indeed most reptiles) have a single type of tooth in their jaws, while ''Heterodontosaurus'' had three. At the front of the jaw beside the beak were small teeth likely used for chopping off leaves and stems. Next in the jaw was a large pair of tusks whose purpose is unknown, but it is speculated that they were used as sexual displays (where the tusks could have been used as weapons by rival males in disputes over mates and territories) or to break open prehistoric termite mounds. The final type of teeth were tall and squared off. This type of teeth was well adapted for chewing. Fleshy cheeks helped keep the food in the mouth while chewing occurred. Chewing is relatively common in dinosaurs, but uncommon for other groups of reptiles.This bizarre suite of teeth has led to debate over what heterodontosaurs ate. Some scientists think heterodontosaurs were omnivores who used their differently-shaped teeth to eat both plants and small animals.There was even an unlikely opinion now that his fangs had killed and ripped the meat of relatively large animals. |
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| + | ==Popular in culture== |
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| + | [[File:Jurassic-park-movie-screencaps_com-13973.jpg|thumb|Heterodontosaurus skull of the left side]] |
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| + | *Remains of the ''Heterodontosaurus'' was shortly seen in the first [[Jurassic Park (film)|Jurassic Park]] film. |
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| + | |||
| + | ==Gallery== |
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| + | <gallery> |
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| + | 61D5B6AD-A076-4D38-9352-5FE99CFAC67E.png |
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| + | </gallery> |
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[[Category:Archosaurs]] |
[[Category:Archosaurs]] |
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| − | [[Category: |
+ | [[Category:Omnivores]] |
[[Category:Small Herbivores]] |
[[Category:Small Herbivores]] |
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[[Category:Reptiles]] |
[[Category:Reptiles]] |
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| + | [[Category:Heterodontosaurs]] |
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| + | [[Category:Fossil taxa described in 1962]] |
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| + | [[Category:Jurassic dinosaurs]] |
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| + | [[Category:Jurassic animals]] |
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| + | [[Category:Dinosaurs of Africa]] |
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| + | [[Category:Dinosaurs of South Africa]] |
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Revision as of 11:07, 27 March 2020
| Heterodontosaurus | |
|---|---|
| |
| An artist's illustration of Heterodontosaurus tucki | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| clade: | Dinosauria |
| Order: | †Ornithischia |
| Family: | †Heterodontosauridae |
| Subfamily: | †Heterodontosaurinae |
| Genus: | †Heterodontosaurus Crompton & Charig, 1962 |
| Referred species | |
| |
Heterodontosaurus (meaning "different toothed lizard") is a genus of small omnivorous dinosaur with prominent canine teeth which lived in the Early Jurassic of South Africa. It was similar to a hypsilophodont in shape, and ate plants, despite its canines. Heterodontosaurus is currently known from specimens of the SAFM (South African Museum) from South Africa. There are two known morphologies of this genus, the second of which is thought by some to represent a different species. The type species, H. tucki, is from the Upper Elliot Formation of the Hettangian age, around 199-196 million years ago.
Description
Heterodontosaurus was a small, fleetfooted ornithischian that reached a maximum size of about 3 feet. It had a long, narrow pelvis and a pubis which resembled those possessed by more advanced ornithischians. More unusual was that the hand of Heterodontosaurus had five fingers, two of which seem to be opposable. This configuration allowed Heterodontosaurus to grasp and manipulate food. The bone in the foot and ankle were fused in a manner reminiscent of those in birds.
Dentition
Another interesting feature is the specialization of teeth which gave rise to the animal's name. Most dinosaurs (and indeed most reptiles) have a single type of tooth in their jaws, while Heterodontosaurus had three. At the front of the jaw beside the beak were small teeth likely used for chopping off leaves and stems. Next in the jaw was a large pair of tusks whose purpose is unknown, but it is speculated that they were used as sexual displays (where the tusks could have been used as weapons by rival males in disputes over mates and territories) or to break open prehistoric termite mounds. The final type of teeth were tall and squared off. This type of teeth was well adapted for chewing. Fleshy cheeks helped keep the food in the mouth while chewing occurred. Chewing is relatively common in dinosaurs, but uncommon for other groups of reptiles.This bizarre suite of teeth has led to debate over what heterodontosaurs ate. Some scientists think heterodontosaurs were omnivores who used their differently-shaped teeth to eat both plants and small animals.There was even an unlikely opinion now that his fangs had killed and ripped the meat of relatively large animals.
Popular in culture
Heterodontosaurus skull of the left side
- Remains of the Heterodontosaurus was shortly seen in the first Jurassic Park film.
Gallery
