Where: Ontario, Canada (44.5° N, 79.2° W: paleocoordinates 23.9° S, 52.2° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Corynoides americanus graptolite zone, Bobcaygeon-Verulam Formation (Simcoe Group), Katian (453.0 - 445.2 Ma)
• ...specimens were collected from blast piles sourced from stratigraphic intervals containing approximately 15m of upper Bobcaygeon and 5m of lower Verulam... PJW: Corynoides americanus zone spans Bobcaygeon & Verulam.
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, hardground, calcareous wackestone and lithified, hardground, calcareous siltstone
Size classes: macrofossils, mesofossils
• ...numerous exceptionally preserved crinoid specimens with arms, stems, and attachment structures intact.
Preservation: original calcite
Collected by J. M. Koniecki; reposited in the UMMP
Collection methods: quarrying, surface (float), surface (in situ)
Primary reference: S. R. Cole, W. I. Ausich, D. F. Wright and J. M. Koniecki. 2018. An echinoderm Lagerstätte from the Upper Ordovician (Katian), Ontario: taxonomic re-evaluation and description of new dicyclic camerate crinoids. Journal of Paleontology 1-18 [S. Cole/S. Cole]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 192276: authorized by Selina Cole, entered by Selina Cole on 19.03.2018, edited by Phil Novack-Gottshall
Creative Commons license: CC BY (attribution)
Taxonomic list
Asteroidea | |
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Crinoidea | |
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"Isotomocrinus tenuis" = Cincinnaticrinus varibrachialus1
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Reteocrinus alveolatus Miller and Gurley 1894 Sea lily | |
Priscillacrinus elegans n. gen. n. sp.
Priscillacrinus elegans n. gen. n. sp. Cole et al. 2018 Sea lily | |
Cleiocrinus sp. Billings 1857 Sea lily
Cleiocrinus lepidotus Cole et al. 2018 Sea lily
Cleiocrinus regius Billings 1857 Sea lily |