Ophiodermatidae
Encyclopedia
Ophiodermatidae are a family
of brittle star
s in the suborder Ophiurina
.
age, late in the Permian
period. The family includes the following living genera:
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
of brittle star
Brittle star
Brittle stars or ophiuroids are echinoderms in the class Ophiuroidea closely related to starfish. They crawl across the seafloor using their flexible arms for locomotion. The ophiuroids generally have five long slender, whip-like arms which may reach up to in length on the largest specimens...
s in the suborder Ophiurina
Ophiurina
Ophiurina are a suborder of brittle stars containing the majority of living brittle star species.-Systematics:There is currently no consensus as to the subdivision of the Ophiurina . It contains the genera Amphiura, Amphipholis, and Ophiacantha.The suborder has been divided into the following...
.
Systematics and phylogeny
Some fossils date as far back as the ChanghsingianChanghsingian
In the geologic timescale, the Changhsingian or Changxingian is the latest age or uppermost stage of the Permian. It is also the upper or latest of two subdivisions of the Lopingian epoch or series. The Changhsingian lasted from 253.8 ± 0.7 to 251.0 ± 0.7 million years ago...
age, late in the Permian
Permian
The PermianThe term "Permian" was introduced into geology in 1841 by Sir Sir R. I. Murchison, president of the Geological Society of London, who identified typical strata in extensive Russian explorations undertaken with Edouard de Verneuil; Murchison asserted in 1841 that he named his "Permian...
period. The family includes the following living genera:
- Bathypectinura
- Cryptopelta
- Diopederma
- Distichophis
- Ophiarachna
- Ophiarachnella
- Ophiochaeta
- Ophiochasma
- Ophioclastus
- Ophioconis
- Ophioconus (accepted as Ophioconis)
- Ophiocormus
- Ophiocryptus
- OphiodermaOphiodermaThe genus name Ophioderma refers to both a genus of brittle stars in the family Ophiodermatiidae and a genus of ferns in the family Ophioglossaceae. This page is about the brittle stars...
- Ophiodyscrita
- Ophioncus
- Ophiopaepale
- Ophiopeza
- Ophiopezella (accepted as Ophiopeza)
- Ophiopinax
- Ophiopsammus
- Ophiostegastus
- Ophiurochaeta
- Pectinura
- Schizoderma
- Toporkovia (accepted as Ophiolimna)