senorcat Posted August 24, 2020 Share Posted August 24, 2020 (edited) I was combing a beach on the southern shore of Lake Ontario for fossils when I found these. The surrounding rocks are Ordovician and contain mainly crinoids and branching corals. I found these two in the water a few feet off of the shore. They look like cephalopods to me, based on the segmentation and shape, and I have seen a nautiloid fossil that was found there a few days ago, but I don't know what kind of cephalopod specifically. I thought the first one might be a crinoid stem except that it tapers off slightly. Edited August 24, 2020 by senorcat Link to comment Share on other sites More sharing options...
Fossildude19 Posted August 24, 2020 Share Posted August 24, 2020 Welcome to the Forum. The first is a cross section through a crinoid, (the tapering is due to the way it eroded) and the second looks like a cross section through an orthocone cephalopod. Neat finds. 2 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
senorcat Posted August 24, 2020 Author Share Posted August 24, 2020 Very cool, thank you Link to comment Share on other sites More sharing options...
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