Ophiodermatidae are a
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
of
brittle star
Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomot ...
s in the suborder
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 (traditionally, the infraorders have been treated as suborders). ...
.
Systematics and phylogeny
Some fossils date as far back as the
Changhsingian
In the geologic time scale, 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 to 251.902 ...
age, late in the
Permian
The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last ...
period. The family includes the following living genera:
MarineSpecies.org - Ophiodermatidae Ljungman, 1867
/ref>
* '' Bathypectinura''
* '' Cryptopelta''
* '' Diopederma''
* '' Distichophis''
* '' Ophiarachna''
* '' Ophiarachnella''
* '' Ophiochaeta''
* '' Ophiochasma''
* '' Ophioclastus''
* '' Ophioconis''
* ''Ophioconus'' (accepted as '' Ophioconis'')
* '' Ophiocormus''
* '' Ophiocryptus''
* '' Ophioderma''
* '' Ophiodyscrita''
* '' Ophioncus''
* '' Ophiopaepale''
* '' Ophiopeza''
* ''Ophiopezella'' (accepted as '' Ophiopeza'')
* '' Ophiopinax''
* '' Ophiopsammus''
* '' Ophiostegastus''
* '' Ophiurochaeta''
* '' Pectinura''
* '' Schizoderma''
* ''Toporkovia'' (accepted as '' Ophiolimna'')
References
Ophiurida
Lopingian first appearances
Extant Permian first appearances
{{ophiuroidea-stub