''Crassispira armoricensis'' is an extinct
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
sea snail, a marine
gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is e ...
in the
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 ...
Pseudomelatomidae, the turrids and allies.
MNHN, Paris: ''Drilla (Crassispira) armoricensis''
/ref>
Description
Distribution
Fossils have been found in Eocene
The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ...
strata in Loire-Atlantique, France
References
* Cossmann (M.), 1896 Mollusques éocèniques de la Loire-Inférieure. Tome 1, fascicule 2. Bulletin de la Société des Sciences Naturelles de l'Ouest de la France, t. 6, vol. 4, p. 180-246
armoricensis
Gastropods described in 1896
{{paleo-gastropod-stub