''Panopea'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of large marine bivalve

molluscs 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 estim ...

or clams 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 ...

Hiatellidae Hiatellidae is a taxonomic family of saltwater clams, marine bivalve molluscs. This family is placed in the order Adapedonta.Bieler R., Carter J.G. & Coan E.V. (2010). Classification of Bivalve families. Pp. 113-133, in: Bouchet P. & Rocroi J. ...

. There are 10 described species in ''Panopea''. Many of them are known under the common name "

geoduck The Pacific geoduck ("gooey-duck"; ; ''Panopea generosa'') is a species of very large saltwater clam in the family Hiatellidae. The common name is derived from the Lushootseed ( Nisqually) word . The geoduck is native to the coastal waters of t ...

Extant species

* '' Panopea abbreviata'' (Valenciennes, 1839) – southern geoduck * '' Panopea australis'' (G.B. Sowerby I, 1833) * '' Panopea bitruncata'' (Conrad, 1872) * '' Panopea generosa'' Gould, 1850 – Pacific geoduck * '' Panopea globosa'' Dall, 1898 – Cortes geoduck * '' Panopea glycimeris'' (Born, 1778) * '' Panopea japonica'' Adams, 1850 – Japanese geoduck * '' Panopea smithae'' Powell, 1950 * ''

Panopea zelandica ''Panopea zelandica'', commonly known as the deepwater clam or New Zealand geoduck, is a large species of marine bivalve mollusc in the ''Panopea'' (geoduck) genus of the family Hiatellidae. It is also sometimes called a king clam, or a gaper – ...

'' Quoy &

Gaimard Joseph Paul Gaimard (31 January 1793 – 10 December 1858) was a French naval surgeon and naturalist. Biography Gaimard was born at Saint-Zacharie on January 31, 1793. He studied medicine at the naval medical school in Toulon, subsequent ...

, 1835 – deepwater clam

Extinct species

Extinct species within this genus include: * † '' Panopea abrupta'' (Conrad, 1849) (extinct Miocene fossil) * † '' Panopea depressa'' Martin 1859 * † '' Panopea dockensis'' Olsson and Petit 1964 * † '' Panopea elongata'' Conrad 1835 * † '' Panopea gastaldii'' Michelotti 1861 * † '' Panopea gurgitis'' Brongniart, 1822 * † '' Panopea intermedia'' Sowerby 1814 * † '' Panopea mackrothi'' Geinitz 1857 * † '' Panopea montignyana'' Martin 1859 * † '' Panopea orientalis'' Forbes 1846 * † '' Panopea remondii'' Gabb 1864 * † '' Panopea toulai'' Lundgren 1895 * † '' Panopea vaudini'' Deshayes 1857 The fossil record of the genus dates back to the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

(and maybe the

Triassic The Triassic ( ) is a geologic period and system (stratigraphy), system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Year#Abbreviations yr and ya, Mya), to the beginning of the Jurassic Period 201.36 ...

) (age range: 242.0 to 0.012 million years ago). These fossils have been found all over the world.

References

External links

* * {{Taxonbar, from=Q3018678 Hiatellidae Bivalve genera