species
In biology, a species is the basic unit of Taxonomy (biology), 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 ...
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 es ...
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
Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005).
In 1995 Kantor elevated the subfamily Pseudomelatominae ...
, the turrids and allies.
Description
The length of the shell attains 14.7 mm.
Distribution
This marine species occurs in the East China Sea and off Japan; fossils have been found in
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" ...
strata of
Okinawa
is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi).
Naha is the capital and largest city ...
and
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58epkoski's age data: T Mi R It is extant.
It was assigned to Turrinae by Woodring (1928); to Clavinae by MacNeil (1960); to Drillinae by Olsson (1964); to Neogastropoda by Sepkoski (2002); to Turridae by Gardner (1948), Todd (2001) and Scarponi and Della Bella (2003); and to Pseudomelaniidae by Bouchet et al. (2011).
References
* Makiyama, J., 1931: Stratigraphy of the Kakegawa Pliocene in Totomi. Memoirs of the College of Science, Kyoto Imperial University, vol.7, no.1, pp. 1–53, pls.1–3