Bivalvia - Cardiida - Veneridae
Alternative spelling: Protothaca (Leukoma)
Synonyms: Antinioche Olsson 1961, Colonche Olsson 1961, Nioche (Antinioche) Olsson 1961, Notochione Hertlein and Strong 1948, Paphia (Protothaca) Dall 1902, Protothaca Dall 1902, Protothaca (Antinioche) Olsson 1961, Protothaca (Notochione) Hertlein and Strong 1948, Protothaca (Tropithaca) Olsson 1961, Tropithaca Olsson 1961, Venerupis (Protothaca) Dall 1902
Parent taxon: Venerinae according to E. V. Coan and P. Valentich-Scott 2012
See also Beu 2006, Coan et al. 2000, da Silva Forti 1969, Hertlein 1972, Howe 1922, Oldroyd 1925, Sepkoski 2002, Todd 2001, Weaver 1942 and Woodring 1982
Sister taxa: Antigona, Artena, Callithaca, Chione, Chioneryx, Chionista, Chionopsis, Circomphalus, Clausinella, Dosina, Dosiniini, Globivenus, Humilaria, Iliochione, Irusella, Kuia, Marama, Melosia, Mercenaria, Paphonotia, Paraesa, Periglypta, Proxichione, Tapetini, Tawera, Turia, Venerini, Venus, Austrovenus, Lirophora, Placamen, Anomalocardia, Timoclea, Bassina, Hinemoana, Nioche, Ameghinomya
Subtaxa: Leukoma asperrima Leukoma beili Leukoma columbiensis Leukoma dolicha Leukoma ecuadoriana Leukoma grata Leukoma histrionica Leukoma laciniata Leukoma metodon Leukoma pertincta Leukoma staleyi Leukoma staminea Leukoma thaca Protothaca (Novathaca) Protothaca (Protothaca) Protothaca (Tropithaca) seymourensis
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Quaternary of Canada (1: British Columbia collection), Chile (7), Japan (3), Mexico (18), Panama (2), Peru (7), United States (68: California, Oregon, Washington), Venezuela (1)
• Pliocene of Chile (1), Ecuador (2), Japan (1), Peru (1), the Russian Federation (2), United States (17: California, Oregon)
• Miocene to Pliocene of United States (7: California)
• Miocene of Colombia (1), Japan (22), Panama (2), the Russian Federation (3), United States (13: Alaska, California)
Total: 179 collections including 188 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.