Isognomon Lightfoot 1786 (oyster)

Bivalvia - Ostreida - Malleidae

Synonyms: Aviculoperna, Perna Bruguière 1789

Parent taxon: Isognomonidae according to D. Frassinetti and V. Covacevich 1999

See also Bouchet et al. 2010, Chiesa et al. 1995, Cox et al. 1969, Hickman 2023, Kensley and Pether 1986, Lamprell and Healy 1998, Lazo and Damborenea 2011, Matsubara 2002, Moore 1983, Repin 2013, Ros-Franch et al. 2014, Sepkoski 2002, Spencer et al. 2004, Vokes 1980, Ward 1992, White 1889, Woodring 1925 and Woods 1922

Sister taxa: Bathyisognomon, Crenatula, Crenatulinae, Gervilleioperna, Leproconcha, Linsdallia, Lithiotis, Melininae, Mytiloperna, Neopanis, Pernariinae, Rostroperna, Yunshanoperna, Pedalion, Waagenoperna

Subtaxa: Isognomon (Hippochaeta) Isognomon (Iranognomon) Isognomon (Isognomon) Isognomon (Melina) Isognomon (Mulletia) Isognomon (Parviperna) Isognomon (Semignomon) Isognomon alatus Isognomon bicolor Isognomon gariesensis Isognomon gaudichaudi Isognomon isognomoides Isognomon isognomon Isognomon isognomonoides Isognomon legumen Isognomon lusitanicus Isognomon maxillata Isognomon nucleus Isognomon orientalis Isognomon perna Isognomon radiatus Isognomon repini Isognomon ricordeanus Isognomon valvanoi Perna inaequivalvis Perna infraliasica Perna latoconvexa Perna loczyi Perna mytiloides Perna subplana

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Type: Ostrea isognomon

Ecology: stationary epifaunal suspension feeder

Distribution:

• Quaternary of Cuba (2 collections), Jamaica (2), Mexico (1), Panama (1), South Africa (2), United States (5: Florida, Hawaii)

• Pliocene of Colombia (1), the Dominican Republic (1), Jamaica (1), Panama (2), South Africa (6), United States (1: Virginia)

• Miocene to Pliocene of Chile (1)

• Miocene of Algeria (4), Argentina (2), Austria (8), Chile (1), France (2), Greenland (1), Japan (1), Morocco (2), New Zealand (1), Panama (1), Peru (1), Poland (3), United States (59: California, Delaware, Maryland, New Jersey, North Carolina, Virginia)

• Oligocene of Austria (2), Germany (3), United States (3: Oregon)

• Eocene of Argentina (1), France (1), Japan (8), United States (9: California, Oregon, Washington)

• Paleocene to Eocene of Pakistan (1)

• Paleocene of China (1), France (1), United States (4: Alabama, South Carolina, Texas)

• Cretaceous of Argentina (3), Bulgaria (1), Chile (2), France (2), Germany (2), Hungary (1), India (1), Italy (1), Japan (14), Kyrgyzstan (1), Lebanon (1), Madagascar (1), Mexico (1), New Zealand (5), Nigeria (1), Peru (1), the Russian Federation (5), Serbia (1), South Africa (2), Spain (1), Svalbard and Jan Mayen (1), Sweden (3), Turkmenistan (1), the United Kingdom (10), United States (16: Alabama, Alaska, California, Georgia, North Carolina)

• Heterian of New Zealand (1)

• Temaikan of New Zealand (1)

• Jurassic of Argentina (23), Canada (3: British Columbia), Chile (10), China (1), France (32), Germany (5), Greenland (85), Hong Kong (1), India (2), Iran (2), Japan (2), Madagascar (2), Oman (1), Poland (1), Portugal (51), Romania (4), the Russian Federation (2), Saudi Arabia (1), Slovenia (1), Spain (4), Svalbard and Jan Mayen (1), Switzerland (1), the United Kingdom (50), United States (23: Utah, Wyoming)

• Triassic of Austria (5), Hungary (5), Indonesia (1), Iran (2), Italy (4), Spain (1)

• Permian of China (3)

Total: 555 collections including 576 occurrences

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