Camarodonta
{{Short description|Order of sea urchins}}
{{Automatic taxobox
| image = Paracentrotus lividus profil.JPG
| image_caption = Paracentrotus lividus
| taxon = Camarodonta
| authority = Jackson, 1912 [http://www.marinespecies.org/aphia.php?p=taxdetails&id=510518 Camarodonta] World Register of Marine Species. Retrieved 2011-08-27.
| subdivision_ranks = Families
| subdivision = {{center|See text}}
}}
The Camarodonta are an order of globular sea urchins in the class Echinoidea. The fossil record shows that camarodonts have been in existence since the Lower Cretaceous.[http://www.nhm.ac.uk/research-curation/research/projects/echinoid-directory/taxa/taxon.jsp?id=1279 The Echinoid Directory] The Natural History Museum. Retrieved 2011-08-27.
Characteristics
All camarodonts have imperforate tubercles and compound ambulacral plates with the lowest elements enlarged. The pores are at regular intervals along the ambulacral plates from the apex to the mouth opening or peristome. The Aristotle's lantern, or jaw system, has keeled teeth with the supports meeting above the "foramen magnum".
Families
According to World Register of Marine Species:
- Infraorder Echinidea (Kroh & Smith, 2010)
- Family Echinidae (Gray, 1825)
- Superfamily Odontophora (Kroh & Smith, 2010)
- Family Echinometridae (Gray, 1855)
- Family Strongylocentrotidae (Gregory, 1900)
- Family Toxopneustidae (Troschel, 1872)
- Family Parechinidae (Mortensen, 1903b)
- Family Parasaleniidae (Mortensen, 1903b)
- Infraorder Temnopleuridea (Kroh & Smith, 2010)
- Family Temnopleuridae (A. Agassiz, 1872)
- Family Trigonocidaridae (Mortensen, 1903b)
Image:Echinus esculentus - Carantec.jpg|Echinus esculentus, Echinidae
Image:Echinometra lucunter.jpg|Echinometra lucunter, Echinometridae
Image:Urchinhand 300.jpg|Strongylocentrotus franciscanus, Strongylocentrotidae
Image:Tripneustes ventricosus (West Indian Sea Egg) edit.jpg|Tripneustes ventricosus, Toxopneustidae
Image:Paracentrotus lividus profil.JPG|Paracentrotus lividus, Parechinidae
Image:Parasalenia poehlii.JPG|Parasalenia poehlii, Parasaleniidae
Image:Microcyphus rousseaui.jpg |Microcyphus rousseaui, Temnopleuridae
Image:Asterechinus elegans - journal.pone.0053590.g003-f.png|Asterechinus elegans, Trigonocidaridae