Echinoid ID

[0dinofthenorth]

I found this echinoid some time ago in Svarte, Sweden. It is 3.5 cm in diameter. Does anyone know what it is?
Dank u in advance.
Gr,
Thomas.

[Editted by 0dinofthenorth on 14-01-2011 at 00:31 GMT +1]

[0dinofthenorth]

If you want any more pictures, just ask!

[Bram]

It's a spatangoid echinoid. I doubt whether it can be further identified. You should at least also post pictures from the oral surface (bottomside).

Greetings,
Bram

[0dinofthenorth]

bram wrote:
It's a spatangoid echinoid. I doubt whether it can be further identified. You should at least also post pictures from the oral surface (bottomside).

Greetings,
Bram

OK then, I will post some more pictures soon!

[0dinofthenorth]

Here is the back and side!

[0dinofthenorth]

I think it is the same as this one, from the same location. (If it helps)
Gr,
Thomas.

[0dinofthenorth]

I now think it is Micraster! Do you think I am correct? http://www.google.co.uk/images?um=1&hl= ... =&aql=&oq=

[Bram]

I suppose they could be Micraster, but these stonecores are really to weathered to be properly identified. They're Spatangoids, but there's not much more to say about them. You may be able to use this link: http://www.nhm.ac.uk/research-curation/ ... directory/, if you come across any better preserved specimens.

In short: I'd call them Spatangoida indet.

Greetings,
Bram

[0dinofthenorth]

bram wrote:
I suppose they could be Micraster, but these stonecores are really to weathered to be properly identified. They're Spatangoids, but there's not much more to say about them. You may be able to use this link: http://www.nhm.ac.uk/research-curation/ ... directory/, if you come across any better preserved specimens.

In short: I'd call them Spatangoida indet.

Greetings,
Bram

OK, thanks, but I don't think I will come across many more. The beach rarely spits them out, I only have found 4 of them in several years. I will call them that from now on. Dank u.
Gr,
Thomas.