From HandWiki

Temporal range: Middle Cambrian
Scientific classification edit
Kingdom: Animalia
Phylum: Mollusca
Family: Arhouriellidae
Geyer & Streng 1998
Genus: Arhouriella
Geyer & Streng 1998[1]
A. opheodontoides
Binomial name
Arhouriella opheodontoides
Geyer & Streng 1998

Arhouriella is arguably the oldest example of a bivalve mollusc in the fossil record. Arguably because there are older contenders to this crown, and because there is not a watertight case that it is a bivalve.[2] The type and only species, Arhoruiella opheodontoides, was named and described by Geyer & Streng in 1998.


  2. BUDD, G. E. and JENSEN, S. 2000. A critical reappraisal of the fossil record of the bilaterian phyla. Biological Reviews, 75, 253–295.

See also Wikidata entry Q48969376.