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Showing results for tags 'Ames Limestone'.
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As I continue to explore (see my prior thread Earlier today I visited the Upper Freeport Formation south of East Liverpool. These are sandstones associated with the Upper Freeport coal, so we are at the end of the formation. I have been up here repeatedly over the past year but never explored rocks this old in the area. It was snowing for about two hours this morning but I still spotted some cool fossils. Unfortunately while I saw the Upper Freeport coal, I didn’t have the opportunity to collect in it. Here are two separate medium sized impressions of lycopsid trunks. I then moved further into younger sediments, revisiting where Pteroplax was collected (Romer, 1963). This is a well known site in the literature, reported in most of the Ohio Pennsylvanian age invert reports of the latter half of the 20th century. I’ve been here before, though we mistakenly descended to the base of the cut along the rail line which was frustrating. The circumstances of how Pteroplax was collected are interesting. Look the paper up. That unit it was produced from is no longer evident and completely overgrown and slumped but it’s fine because I was here for the Ames limestone. Everything I collected here was typical of what I have seen of the Ames limestone in eastern Ohio so I have omitted pictures. Afterward I moved on to another section that exposes a larger portion of the Glenshaw Formation (the Ames is the terminal Glenshaw transgression, the Upper Freeport coal is below the Glenshaw’s lowest unit). Here are some Pine Creek (Upper Brush Creek) brachiopods. One is a productid and the other is a part and counter part of a spiriferid (?Neospirifer). In the Cambridge limestone, we found this badly preserved snail. Perhaps with some preparation, it can be identified further. It is fairly beat up. At this locality, the Cambridge is very coarse grained and hard. The snail is not exhibiting the typical preservation qualities of other invertebrate fossils found here. In a younger unit, I found this partial Deltodus tooth as well as a possible actinopterygian scale (I have my doubts but friends are certain). Both are hanging out with broken bellerophontid snail pieces. Tomorrow I will be in the Mercer (Pottsville Group) which is older than anything you’ve seen in these two threads. If I find anything worth sharing, I’ll share! In the future I will be updating this thread for the entire month (and maybe the year) instead of starting new threads.
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Some gastropod specimens I collected in Western PA. in December in calcareous shale (Ames Limestone- Pennsylvanian) . Can you help with the genus IDs? Thanks.
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Found these, my first Pennsylvanian Age marine fossils in calcareous shale in a road cut in western Pennsylvania on a recent trip. According to the Fossil Collecting in Pennsylvania guide, the formation is the Ames Limestone. Any help with IDs would be greatly appreciated. Thanks. 1.)
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From the album: Carboniferous from PA.
Shansiella sp. (gastropod) Pennsylvanian Ames Limestone Mundys Corner, P.A.- 2 comments
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From the album: Carboniferous from PA.
Worthenia sp. (spiral gastropod) Pennsylvanian Ames Limestone Mundys Corner, P.A.- 1 comment
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Tiny Trilobite Pygidium on Trepospira Gastropod
Jeffrey P posted a gallery image in Member Collections
From the album: Carboniferous from PA.
Ditomopyge decurtata (trilobite pygidium on Trepospira gastropod) Pennsylvanian Period Ames Limestone Mundys Corner, PA.- 1 comment
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From the album: Carboniferous from PA.
Meekospira sp. (gastropod with rugose coral) Pennsylvanian Ames Limestone Mundys Corner, P.A.-
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From the album: Carboniferous from PA.
Trepospira sp. (gastropod) Pennsylvanian Ames Limestone Mundys Corner, P.A.-
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Pennsylvanian Rugose Corals from Pennsylvania
Jeffrey P posted a gallery image in Member Collections
From the album: Carboniferous from PA.
Lophophyllidium sp.? (rugose corals) Pennsylvanian Ames Limestone Mundys Corner, PA.-
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- corals
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