Quer Posted June 29, 2019 Share Posted June 29, 2019 Hi, Some weeks ago, I found those spatangoid echinoids in my usual Upper campanian/Lower Maastrichtian hunting zone of SE of Pyrenees: I think they fit well with Diplodetus brevistella, as shown in http://www.echinologia.com/galeries/micrasteridae/index.html#diplodetus But, I found no other references of Diplodetus in the Pyrenees, and hardly in distant zones of Spain, which makes me doubt (Diplodetus is a genus mostly found in Northern Europe) 4 Link to post Share on other sites
caterpillar Posted June 29, 2019 Share Posted June 29, 2019 We find also Diplodetus in french Pyrenees (maastrichtian and thanetian level). I don't know if your echinoids are Diplodetus. Normaly anterior paired ambulacra are longer than posterior https://www.nhm.ac.uk/our-science/data/echinoid-directory/taxa/taxon.jsp?id=308 3 Link to post Share on other sites
Quer Posted June 30, 2019 Author Share Posted June 30, 2019 Merci beaucoup, caterpillar. In fact, anterior paired ambulacra are longer, but not much. The problem is, maybe, that they are all too long. The Echinoid Directory: "(Diplodetus) Differs from Plesiaster only in having shorter petals". So, It could be a Plesiaster. Link to post Share on other sites
caterpillar Posted June 30, 2019 Share Posted June 30, 2019 Maybe. If you take a look at this link https://www.nhm.ac.uk/our-science/data/echinoid-directory/taxa/key.jsp?id=299 1 Link to post Share on other sites
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