historianmichael Posted April 23, 2022 Share Posted April 23, 2022 A couple of weeks ago I made a weekend trip to Oklahoma to collect from several exposures of the Late Ordovician Bromide Formation, Mountain Lake Member. At one site I picked up this trilobite pygidium that I cannot seem to quite pinpoint with any of the trilobites I have seen in the literature from the Bromide Formation, Mountain Lake Member. It measures about 2.2cm in length. Does anyone recognize this trilobite tail? Any help would be greatly appreciated. Thank you in advance! 2 Follow me on Instagram (@fossil_mike) to check out my personal collection of fossils collected and acquired over more than 15 years of fossil hunting! Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted April 23, 2022 Share Posted April 23, 2022 Bumastoides sp. ? Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
historianmichael Posted April 23, 2022 Author Share Posted April 23, 2022 10 minutes ago, Tidgy's Dad said: Bumastoides sp. ? I have seen Bumastoides milleri reported from the Pooleville Member, but the pygidium seems shorter and wider. Follow me on Instagram (@fossil_mike) to check out my personal collection of fossils collected and acquired over more than 15 years of fossil hunting! Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted April 23, 2022 Share Posted April 23, 2022 I was thinking maybe B. graffhami? https://myweb.uiowa.edu/jadrain/resources/Carluccietal2012.pdf Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
piranha Posted April 23, 2022 Share Posted April 23, 2022 This one is Failleana sp. Carlucci, J.R. 2012 Trilobite Biofacies, Systematics and Faunal Turnover in a Sequence Stratigraphic Framework during the Upper Ordovician of Oklahoma and Virginia. PhD Thesis, University of Oklahoma, 464 pp. 5 1 Link to comment Share on other sites More sharing options...
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