词条 | Aulatornoceratinae |
释义 |
| fossil_range = Frasnian - Famennian | image = | image_caption = | taxon = Aulatornoceratinae | authority = Becker, 1993 | subdivision_ranks = Genera | subdivision =
}} Aulatornoceratinae is one of three subfamilies of the gonititid family Tornoceratidae, an extinct order of Paleozoic ammonoid cephalopods. Aulotornoceratinae was established as a subfamily by R.T.Becker, 1993, initially for Aulatornoceras, named by Schindewolf, 1922. Subsequently four other genera have been added. Members (genera) of the Aulotornoceratinae are known from the Late/Upper Devonian of Western Australia and Alsace, France. In France their fossils are found in well bedded pelagic (deep ocean) limy mudstones, Frasnian in age, with a paleolatatude of about 32° south. Current latitude is 43.4° N. In Western Australia, in Canning Basin, they are found in Frasnian and Famennian, (Upper Devonian), marginal slope and basinal facies related to reef complexes. Paleolatitudes are about 20° S. Current latitude is 18.0° S. Shells of the type genus Aulatornoceras are involute, widely to narrowly umbilicate, with strongly biconvex growth lines. The suture is goniatitic. References
5 : Tornoceratidae|Prehistoric protostome subfamilies|Late Devonian first appearances|Late Devonian animals|Famennian extinctions |
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