Jump to content

Help With Eocene Fossil Id - Limpet?


caveindia

Recommended Posts

Last December I found this fossil in Eocene Siju Limestone Formation in Meghalaya, India. In the vicinity there are fossils of nummulites and Teredolites longissimus (burrows of a shipworm bivalve).

In the only photo that I have of this specimen, all you can see is the margin of the shell. My guess is a limpet, but I really don't know. Are there any other opinions on what this might be? Scale is in mm.

Mike

post-10993-0-11677700-1360899648_thumb.jpg

Link to comment
Share on other sites

Hi,

I think it could be a sea urchin.

Coco

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

Link to comment
Share on other sites

Hi,

I think it could be a sea urchin.

Coco

Thanks for that idea Coco. I could see that while one margin is concave, the other is convex, as in a modern sea urchin. Size of 1.5x2.5mm would also fit this contention. Too bad that I was too busy making a map of the cave and did not spend, but a few minutes, taking pictures of fossils.

Link to comment
Share on other sites

Although this is a different type of sea urchin, here is a much more upbeat version of the sand dollar-type sea urchin:

Edited by caveindia
Link to comment
Share on other sites

Probably not a limpet. I have several modern limpets in my shell collection and they are always perfectly oval on the margin.

Stephen

Link to comment
Share on other sites

Probably not a limpet. I have several modern limpets in my shell collection and they are always perfectly oval on the margin.

Thanks. This helps me toward eliminating the limpet idea.

Link to comment
Share on other sites

I tend to agree with Coco on the urchin.

"Absence of evidence is not evidence of absence"_ Carl Sagen

No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go.

" I think, therefore I collect fossils." _ Me

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes

"can't we all just get along?" Jack Nicholson from Mars Attacks

Link to comment
Share on other sites

I tend to agree with Coco on the urchin.

After comparing the anatomy of a modern sea urchin with the fossil, I see the resemblance.

post-10993-0-03311900-1360962438_thumb.jpg

Link to comment
Share on other sites

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 account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...