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Pleurocystites squamosus with partial Isorophusella incondita
JUAN EMMANUEL posted a gallery image in Member Collections
From the album: Echinoderm Collection
Pleurocystites squamosus (Parseley, 1982 (?)) with partial Isorophusella incondita (Raymond, 1915 ) attached to the cystoid. Upper Bobcaygeon Formation, Middle Ordovician. Simcoe County, Ontario, Canada. Plate is 11cm long.-
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References: Timothy Paton, Carlton Elliot Brett (2019) Revised stratigraphy of the middle Simcoe Group (Ordovician, upper Sandbian-Katian) in its type area: an integrated approach. Canadian Journal of Earth Science. DOI: 10.1139/cjes-2018-0023 Kammer TW, Sumrall CD, Zamora S, Ausich WI, Deline B (2013) Oral Region Homologies in Paleozoic Crinoids and Other Plesiomorphic Pentaradial Echinoderms. PLoS ONE 8(11): e77989. doi:10.1371/journal.pone.0077989
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Help identify this fossil I found in a quarry in brechin Ontario
Ericneufeld posted a topic in Fossil ID
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I made another score on eBay! This time I got the winning bid on a partial echinoderm plate from Simcoe County, Ontario from the Upper Bobcaygeon formation. One of the Pleurocystites has a partial Isorophusella incondita edrioasteroid on it which I'll try to take a picture soon. This is my second specimen I have ever obtained from this locality.
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Brechin, Ontario with Malcolm and the New York Paleontological Society
Jeffrey P posted a topic in Fossil Hunting Trips
The weekend of June 24th and 25th I participated in an outing with the New York Paleontological Society led by my friend, Ray McKinney to Brechin, Ontario. TFF Member Malcolm led our group into the James Dick quarry where both Bobycaygeon and Verulam Formations are exposed. These are Middle Ordovician from the Trenton Group and contain a wide variety of invertebrate fossil fauna. Also met other TFF members Kevin (Northern Sharks) and Joe (crinus). Most of the quarry is the Bobycaygeon and the very top is the Verulam- only accessible near the entrance, but I got some excellent well preserved matrix plates from there. I spent the second day combing the spoil piles. This first picture is Lake Simco by Beaverton where we stayed. Malcolm in the middle, explaining the quarry geology to NY Paleontological Society members.- 19 replies
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Amecystis laevis (Ulrich and Kirk, 1921). Upper Bobcaygeon Formation, Middle Ordovician. Simcoe County, Ontario, Canada. This specimen is among the ten specimens on a hash plate that was won in a bid and bought over online auction site. The specimen is missing the two tentacles at the top of the head. Length of the specimen was measured by using a measuring tape.
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