Aegeridae
Encyclopedia
Aegeridae is a family
of fossil
prawn
s. It contains two genera, Aeger
and Acanthochirana
.
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 fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
prawn
Prawn
Prawns are decapod crustaceans of the sub-order Dendrobranchiata. There are 540 extant species, in seven families, and a fossil record extending back to the Devonian...
s. It contains two genera, Aeger
Aeger
Aeger is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 20 species are known....
and Acanthochirana
Acanthochirana
Acanthochirana is an extinct genus of prawn that existed during the upper Jurassic period. It was named by Strand in 1928, and contains five species, including Acanthochirana cordata. They are distinguished from the related genus Aeger by the presence of teeth on the rostrum, which are absent in...
.