Mediospirifer Posted February 27, 2014 Share Posted February 27, 2014 I have a few dozen conodonts that I'm in the process of photographing and mounting for storage. Among my collection, I have several Polygnathus linguiformis examples. Last night, I mounted two P. linguiformis on my "Conodonts II" storage card. This one caught my attention: That pale growth on the underside struck me as odd, especially compared to the other P. linguiformis that I handled last night: So I went to look at the P. linguiformis that I'd previously mounted. Here are 3 of the 4 for comparison: I also looked at the page in "Conodonts from the Genesee Formation in Western New York" that shows a number of P. linguiformis for further comparison. While several show liplike growths on the back, none are quite as pronounced as the first specimen I showed here. I'd be curious to see what other collectors think about this set. Do I have a pathology, or is this an element from a really old individual? Link to comment Share on other sites More sharing options...
Socket Posted March 2, 2014 Share Posted March 2, 2014 (edited) Its a basal body which isn't always preserved/attached. The correct terminology will come to me... I had a sample full of palmatolepids with their bases still attached but all the other surrounding samples lacked it. Ill try to find a photo... Edit: dont think I can find any pics on this computer that clearly show it. But you can see a small light outline of the basal body through the conodont to the right. Edited March 2, 2014 by Socket Link to comment Share on other sites More sharing options...
Mediospirifer Posted March 3, 2014 Author Share Posted March 3, 2014 Its a basal body which isn't always preserved/attached. The correct terminology will come to me... I had a sample full of palmatolepids with their bases still attached but all the other surrounding samples lacked it. Ill try to find a photo... Edit: dont think I can find any pics on this computer that clearly show it. But you can see a small light outline of the basal body through the conodont to the right. Interesting! So it's not a pathology, it's unusually good preservation. Sounds good to me! Thanks for the identification. By the way, your photo doesn't have enough resolution for me to see the basal body. I can't get a larger size than thumbnail. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now