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Showing results for tags 'annelids'.
So.....I was splitting my last piece of Pennsylvanian stark shale member, between Winterset and Bethany Falls limestone from a 2x2' 2" thick piece, I found some cool conodonts, a lot of scolecodonts, and amassing a pile of split shale, when I came upon yet another listracanthus/fish spine, about 5-6cm in length and very slender (2-3mm in width). I have both positive and negative pieces (depicted here). I scan all of these to see the pattern, faint impressions of a wider segment (as seen in photo 6 ), and in this particular specimen noted the shiny black cracks and creases surrounding the fossi
Genicularia vertebralis bodies are formed of ringed segments. Worms’ soft bodies generally don’t fossilise, though traces of worms do fossilise. These are pieces of the calcareous tubes secreted by the marine worms. And I've posted a few topics on Genicularia here on TFF over the year's. I'm now looking more into the variations of tubes you can find, so I thought you would like to see a few. Name: Genicularia vertibralis Age: Oxford Clay, Jurassic Location Found: Peterborough, United Kingdom
Scylla posted a topic in Fossil NewsHollow gut helps define annelid like creatures from over 500 million years ago. https://www.livescience.com/oldest-guts-fossilized-primordial-creature.html
About a month or so ago, I had a few hours to kill and decided on a whim to go search for the Lecthaylus gregarius in Blue Island, Illinois. I walked down to the river and found the Lockport shale which was really fun and easy to split apart, but all I came across were lots of plates of worms like this one: I wasn't even sure if these were Silurian annelids. In the end, I was unsuccessful in finding Lecthaylus gregarius, however I did find these fossils: If anyone has more info on genus types, etc. would be greatly appreciated!