Pleioptygma carolinense
Encyclopedia
Pleioptygma carolinense is an extinct species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

, a marine gastropod mollusk in the family
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...

 Pleioptygmatidae.

Pleioptygma carolinensis is the type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...

 of the genus Pleioptygma.

Distribution

This species is found in the Pliocene
Pliocene
The Pliocene Epoch is the period in the geologic timescale that extends from 5.332 million to 2.588 million years before present. It is the second and youngest epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch...

 deposits of North Carolina
North Carolina
North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...

. The type locality is Duplin County, North Carolina
Duplin County, North Carolina
-Demographics:As of the census of 2000, there were 49,063 people, 18,267 households, and 13,060 families residing in the county. The population density was 60 people per square mile . There were 20,520 housing units at an average density of 25 per square mile...

.

Description

The type description of Pleioptygma carolinensis originally described as Voluta carolinensis by Timothy Abbott Conrad
Timothy Abbott Conrad
Timothy Abbott Conrad was an American geologist, malacologist and carcinologist.- External links :* at Internet Archive...

 (1840) reads as follows:
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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