Very nice find,well done.
Very nice, I have a similar specimen I collected from the Brackelesham formation in the UK, smaller at 10cm. Gisortia are an interesting group, very confused taxonomically. Very interesting to note how similar your specimen is in comparison with UK specimens.
That is very interesting, I collect offensively from the Barton and Brackelesham formations here in the UK. Also from the France, and its interesting the similarity between the two. I have not seem much from Italy, I am aware there are localities in Italy but seen very little material. Do you have the genus Clavilithes? This is a group I am very interested in and currently looking at the differences between French and British specimens, would be intrigued if the genus is represented in Italy. I know there are species listed from Italy, but I wonder if they are actually Clavilithes or related as are the American which in my opinion are actually Clavilithes, but are clearly related!
Thank you very much for posting those. I would be extremely interested to know if they are all from the same locality? I suspect not!
The specimen bottom right looks very similar to some of the very earliest Clavilithes from the Cuisien. The two specimens on the left look much more like later specimens from the Lutetien, more like Rhopalithes? Specimen top right again typical later Clavilithes.
Very, very interesting.
Thank you very much for the information, most interesting . As you are aware the taxonomic status of Clavilithes is a mess, they are a very interesting but frustrating genus, probably because they were so fast evolving. I am currently looking at British Clavilithes and its clear there is much confusion within this group. I am also looking a French material, which only adds confusion, for example what the French called Clavilithes longaevus is not the same as British Clavilithes longaevus, you have now added more confusion as what you have shown as Clavilithes longaevus from Italy is again not the same species!
If you had time I would be very interested to see more pictures of the Italian Clavilithes? I would be particularly interested to see any juveniles.
Again thank you for posting the pictures, they are very interesting.
Thank you Massimo, I really would appreciate that. I don¢¢â¬¢â¢t at this moment in time have photos I can post in return [computer problem]. However, on Alan Morton¢¢â¬¢â¢s website there photos of most British Clavilithes, also my Campanile and the Gisortia we collected.
I very much look forward to seeing more specimens
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