†Tyrsoecus (Stephanocosmia) (snail)
Gastropoda - Murchisoniina - Loxonematidae
Alternative spelling: Stephanocosmia
Synonym: Coronaria Koken 1892 [replaced name]
Parent taxon: Tyrsoecus according to Zapfe 1962
See also Kittl 1899 and Sepkoski 2002
Sister taxa: Tyrsoecus (Tyrsoecus), Tyrsoecus multinodosa
Subtaxa: Coronaria compressa Coronaria spectabilis Coronaria striatopunctata Coronaria zeuschneri Stephanocosmia dolomitica Stephanocosmia transmutans
Ecology: facultatively mobile epifaunal suspension feeder
Distribution:
• Triassic of Hungary (5 collections), Italy (13), New Zealand (2), United States (1: Idaho)
Total: 21 collections each including a single occurrence