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Showing results for tags 'rafinesquina'.
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I found this death plate during one of my hunts in the Drakes Formation and am unsure if it is Rafinesquina ponderosa or some other related species. Found in Louisville, KY, Drakes Formation (Bardstown Reef Site).
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If you are a fossil collector in an Ordivician area, the Rafinesquina is a pretty common find. Here are pics of some typical pieces from my collection. The R. ponderosa (middle) are typically 4 to 5 cms wide. Below is the view of them from the side, showing their basic difference in appearance. Late last summer I came across 3 brachiopods on a maybe 30 degree roadcut south of Dayton, OH that are similar to the Rafinesquina. All three were within 2 feet of each other and broken "from the middle out" as if they had been stepped on...or maybe run over by a tractor mowing the roadcut? They were huge. I've never seen any so big. Not even pieces. Although they were mostly missing the tips of their hinge line they were still 7.5 to 9 cms wide. Here they are above and below my initial trio. But they aren't just wider, they're just flat out bigger. Here are a side and a front view of one alongside a R. ponderosa. I have found the "typical" Rafinesquina in other sites both north, south, east and west of this site. Within miles and up to 20 miles of this site and at higher and lower elevations. I've gone back to the site and there were no others, nor any on the other side of the road. Have any other Ordivician collectors come across these before? I haven't seen any mentioned anywhere. Although the literature disagrees, are these actually what the Ponderosa looks like?
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Fossils under the KY I-75 bridge at Clay's Ferry
Darrell Barnes posted a topic in Fossil Hunting Trips
Fossils under the KY I-75 bridge at Clay's Ferry video link Featuring Mark Montgomery and Dan Phelps Mr. Phelps identifies the fossils: Brachiopod pieces, Ordovician High-Spired snail Rafinesquina Brachiopod identified Flat brachiopod Constantine Rafinesque story https://en.wikipedia.org/wiki/Constantine_Samuel_Rafinesque About Dan Phelps Thanks to Will _ for helping me to find the location in the KAS registration lobby at Berea College. by Darrell Barnes- 3 replies
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From the album: Finds From the Ordovician -488 to 443 MYA-
From the Georgian Bay Formation.-
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- brachiopod
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I was determined to trace a shale layer into a hillside, and managed it: what a joy to discover more shell imprints. The genus I'm looking for is Rafinesquina, or something similar. Also got some colonies of things and trace fossils out of the muddy creek area. This place is the tip of the Georgian Bay formation that pokes into Oakville. It yields its treasures sparingly and you really have to work for it! The rocks were so heavy...I had a bag of goodies plus 3 heavy slabs...barely made it back to the car. I left 4 spectacular slabs that were too heavy to manage...might go back for them when I feel ambitious.
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From the album: Ordovician Fossils (by Peat Burns)
Rafinesquina ponderosa (Brachiopoda) Late Ordovician: Richmondian Stage St. Leon, Indiana, USA© 2017 Peat Burns - All Rights Reserved
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