Bivalvia - Myalinida - Myalinidae
Alternative spelling: Orthomyalina
Full reference: N. D. Newell. 1942. Lower Paleozoic pelecypods: Mytilacea. University of Kansas Publications 10(2):1-115
Parent taxon: Myalina according to B. S. Kues 2004
See also Newell 1942, Sepkoski 2002 and Vokes 1980
Sister taxa: Myalina (Myalina), Myalina (Myalinella), Myalina (Selenimyalina), Myalina banschangensis, Myalina chilena, Myalina compressa, Myalina congeneris, Myalina copei, Myalina dalecarlica, Myalina degeeri, Myalina falcata, Myalina flexuosa, Myalina golfussiana, Myalina kansasensis, Myalina kiparisovae, Myalina lamellosa, Myalina leptaenarum, Myalina longicardinalis, Myalina longinqua, Myalina mongugaensis, Myalina nemesis, Myalina nessus, Myalina orsae, Myalina parallela, Myalina permiana, Myalina pernaformis, Myalina plicata, Myalina recta, Myalina semiglobosa, Myalina tommasii, Myalina vetusta
Subtaxa: Myalina (Orthomyalina) ampla Myalina (Orthomyalina) slocomi Myalina (Orthomyalina) subquadrata
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Permian of Afghanistan (1 collection), China (1), United States (1: Kansas)
• Carboniferous of Spain (1), United States (62: Kansas, Missouri, New Mexico, Texas)
Total: 66 collections each including a single occurrence