OreRockOn Posted August 21, 2020 Share Posted August 21, 2020 Hello, Ive been wracking my brains over this and I can't find anything close on Google but it really looks familiar. This is from what I think is early Triassic Thaynes group near Minnetonka Cave in St. Charles Creek/Canyon (from a paper I couldn't download so I lost it) (west shore of Bear Lake) but there is Ordovician St. Charles Fm immediately to the west. The geologic maps I can find don't even show the Triassic but I collected the ammonite locality south of Liberty so I know it's at least in the area. Anyway I collected this little bugger at the site and I'm stumped (honestly the only fossils I know well are Eocene-Miocene marine in OR & WA). The bivalve (brachiopod?) is from the same site. I got a lesson in how not to do acid removal of limestone matrix so it's a little over-soaked lol. Quote Link to post Share on other sites
Darbi Posted August 24, 2020 Share Posted August 24, 2020 @OreRockOn, it would be easier to identify your 'bivalve' as bivalve or brachiopod if you can show us the side view of its valve/hinge. The fossil in your first picture looks like a bryozoan, I think. Quote Link to post Share on other sites
OreRockOn Posted August 31, 2020 Author Share Posted August 31, 2020 On 8/24/2020 at 10:50 AM, Darbi said: @OreRockOn, it would be easier to identify your 'bivalve' as bivalve or brachiopod if you can show us the side view of its valve/hinge. The fossil in your first picture looks like a bryozoan, I think. I took a couple more photos. I did get tentative confirmation that it's a bryozoan from Paul Taylor at the London Museum of Natural History, he offered to send the bivalve? off to someone for a better ID, could be Plagiostoma. Having an interesting email exchange with him Also found this little blob in the dissolved matrix. Looks similar, 12mm across. Quote Link to post Share on other sites
Ludwigia Posted August 31, 2020 Share Posted August 31, 2020 I'd tip bryozoan as well. Quote Link to post Share on other sites
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