Cheiragonidae is a small
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
crabs, sometimes called ''
helmet crabs'',
placed in its own
superfamily
SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...
, Cheriagonoidea.
It comprises three extant species, ''
Erimacrus isenbeckii'', ''
Telmessus acutidens'' and ''
Telmessus cheiragonus
Telmessos or Telmessus ( Hittite: 𒆪𒉿𒆷𒉺𒀸𒊭 ''Kuwalapašša'', Lycian: 𐊗𐊁𐊍𐊁𐊂𐊁𐊛𐊆 ''Telebehi'', grc, Τελμησσός), also Telmissus ( grc, Τελμισσός), later Anastasiopolis ( grc, Αναστ� ...
'',
there are no yet evidences of Cheiragonidae in the fossil record.
[ Many of these crabs were formerly treated as members of the Atelecyclidae.]
References
External links
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Crabs
Extant Eocene first appearances
Decapod families
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