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Lingula (genus)
Encyclopedia
Lingula is a genus
of brachiopod
s within the class Lingulata
. Lingula is known since the Tertiary.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of brachiopod
Brachiopod
Brachiopods are a phylum of marine animals that have hard "valves" on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection...
s within the class Lingulata
Lingulata
Lingulata is a class of brachiopod, among the oldest of all brachiopods having existed since the Cambrian period . They are also among the most morphologically conservative of the brachiopods, having lasted from their earliest appearance to the present with very little change in shape...
. Lingula is known since the Tertiary.
Species
The following species are recognised:- Lingula adamsi Dall, 1873
- Lingula anatina Lamarck, 1801
- Lingula dregeri Andreae, 1893
- Lingula eocenica Moroz & Ermokhyna, 1990
- Lingula parva Smith, 1871
- Lingula reeviiLingula reeviiLingula reevii is a brachiopod species known as the inarticulated brachiopod and is in the family Lingulidae. Inarticulated brachiopods have bilaterally symmetrical shells held together only by muscles and not teeth...
Davidson, 1880 - Lingula rostrum (Shaw, 1798)
- Lingula tenuis Sowerby
- Lingula translucida Dall, 1921
- Lingula tumidula Reeve, 1841
- Lingula waikatoensis Pen, 1930