Erymidae
Encyclopedia
Erymidae is a family
of decapod
crustacean
s known only from fossil
s. They survived for 100 million years, from the Permo-Triassic boundary to the Hauterivian
. Eleven genera
are recognised:
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 decapod
Decapoda
The decapods or Decapoda are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns and shrimp. Most decapods are scavengers. It is estimated that the order contains nearly 15,000 species in around 2,700 genera, with...
crustacean
Crustacean
Crustaceans form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at , to the Japanese spider crab with a leg span...
s known only from fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
s. They survived for 100 million years, from the Permo-Triassic boundary to the Hauterivian
Hauterivian
The Hauterivian is, in the geologic timescale, an age in the Early Cretaceous epoch or a stage in the Lower Cretaceous series. It spans the time between 136.4 ± 2 Ma and 130 ± 1.5 Ma...
. Eleven genera
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
are recognised:
- Clytiella Glaessner, 1931 – 1 species
- Clytiopsis Bill, 1914 – 3 species
- Enoploclytia M’Coy, 1849 – 20 species
- Eryma Von Meyer, 1840 – 44 species
- Galicia Garassino & Krobicki, 2002 – 3 species
- Lissocardia Von Meyer, 1851 – 3 species
- Palaeastacus Bell, 1850 – 24 species
- Paraclytiopsis Oravec, 1962 – 1 species
- Protoclytiopsis Birshtein, 1958 – 1 species
- Pustulina Quenstedt, 1857 – 12 species
- Stenodactylina Beurlen, 1928 – 1 species