Pr0teusUnbound — Petoskey Formation Type LocalityCephalopod Fossils
#devonian#formation#fossil#late#limestone#mid#petoskey#reconstruction#acleistoceras#brevicone#oncocerid#spyroceras#mooreoceras#cyrtocone#possible#othocone Published: 2022-02-06 10:49:20 +0000 UTC; Views: 520; Favourites: 5; Downloads: 0 Redirect to originalDescription
The cephalopod fossils here aren't particularly good, but they're there. Only one specimen with a siphuncle yet, but the checklist claims some similarity to the nearby Gravel Point Formation. The orthocone can be ruled out as Michelinoceras or the apex of Acleistoceras, so I drew it as Mooreoceras. Thats a Carboniferous-Permian genera, but the dimensions are similar. With no siphuncle I can only guess. The little one I labeled Spyroceras has a tiny siphuncle, but its still smaller than normal Spyroceras. One guy I met believes the molds could be from eurypterids, but I ran out of room to humor that.
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