oh an old one! I was there and had to take home a wee ordovician slate, but I don't think I was near the ancient volcanoes
There's some really lovely Ordovician landscape art out there imagining it! bsky.app/profile/lace...
wait... Cretaceous? or ordovician? Just checking becuase I had a look at it looks like you went with Ordovician? Let me know if not, I can easily send you the Cretaceous one!
Didn't do much prep work on this one, but it's a nice cephalopod section with a bit of crystallization. I believe it's a Treptoceras. #fossilfriday#ordovician#cephalopod#kentucky#fossils#paleontology
That one paper about earth having rings in the ordovician is making me weirdly emotional
A lovely post by Mark Wilson of Wooster College on their collection of carbonate hardgrounds from the Ordovician , Jurassic, and Cretaceous. woostergeologists.scotblogs.wooster.edu/2024/09/25/c...
The first "tree" appears during the Devonian period, between 350 and 420 million years ago. The earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period. That's right: sharks are older than TREES.
James Cambrian Rhys Ediacaran Alwyn Ordovician Is this anything?
💻 We reconstructed the phylogeny of Pleurotomariida using 93 shell characters and analysing 109 species ranging from the Ordovician to Recent with the Bayesian Fossilised Birth-Death Model and Parsimony analysis.