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New Canadian Triassic Ammonoids

1940; Ottawa Field-Naturalists' Club; Volume: 54; Issue: 4 Linguagem: Inglês

10.5962/p.340213

0008-3550

F H McLearn,

Geological and Geochemical Analysis

dawson n. var., Thisbites charybdis var.custi n. var., and T. charybdis var.ireneanus n. var.are from the Stikinoceras-Styrites (or Stikinoceras-'Palicites') fauna.Juvavites magnus n. sp. and Juvavites biornatus n. sp. are in what may be _ tentatively be called the Drepanites fauna.Helictites decorus n. sp., H. decorus var.obesus n. var H. decorus var transitionis n. var., Daphnites (Phormedites?)stelcki n. sp., and Distichites doidli var.canadensis n, var.are in the Distichites fauna.Revised lists of ammonoids of the Schooler Creek formation, based on recent studies and descriptions of new species and varieties follow.The Nathorstites fauna includes Isculites schooleri, I. schooleri var.parvus, Lobites pacianus, Nathor-