HOME Community Fossiel.net
Facebook Fossiel.net In English Please In het Nederlands

Mededeling


Bouw mee aan Fossiel.net!
Hoe kan ik helpen?

Sticky Forum

Informatieve Posts

>> Alle informatieve posts

Nieuwste fossiel uit het Determinatiesysteem

Geo Agenda

>> Meer Agenda items

Georockhop
Vis hypural en wervels F3802
27.50 EUR



Fossil Identification


Echinoids, Lutetian, Fleury La Riviere


dmguk   23-07-2010 om 14:08

dmguk
Junior Lid
Lid sinds: 24-02-2010
Berichten: 9



Hello All !
I am trying to find the name for the small echinoids that are in the Eocene, Paris Basin matrix. I am breaking down material from Fleury La Riviere, I am ok with naming most of the gastropods, but can not find any information on the echinoids. The one shown is 5mm, although I have found them down to 1mm. All of the examples I have found seem to be the same species

Dank U !
David

 
Bram   23-07-2010 om 16:16

Bram
Senior Lid
Lid sinds: 06-11-2005
Berichten: 2560

Hello David,

Nice little echinoid! It looks like one from the order Clypeasteroida. Have you looked at Echinocyamus LINK or maybe Fibularia LINK? Could you post more photo's of other specimens to, I'd love to see them.

Bram

[Bewerkt door Bram op 23-07-2010 om 16:21 NL]

 
dmguk   23-07-2010 om 00:35

dmguk
Junior Lid
Lid sinds: 24-02-2010
Berichten: 9



Hello Bram

Firstly, apologies for the poor picture, I only have a basic camera and it does not work too well for such small specimens. I have included a 2 euro cent coin for scale !

I have just soaked and sieved about 1kg of matrix, which gave about 200 small gastropods and bi-valves in perfect condition and about the same again broken, and 19 of these echinoids. The picture I posted earlier is the only one I have still in matrix.

 
Bram   24-07-2010 om 09:34

Bram
Senior Lid
Lid sinds: 06-11-2005
Berichten: 2560

Hello David,

I should try to go there sometime too From these photo's I can't help with the exact identification, but you should try searching some more for Echinocyamus, they really look like geologically younger ones that I have. Anyway, they're nice, tiny echinoids!

Bram

[Bewerkt door Bram op 24-07-2010 om 09:42 NL]

 
dmguk   10-11-2010 om 03:09

dmguk
Junior Lid
Lid sinds: 24-02-2010
Berichten: 9

Hello again.
I thought I should update this thread. I now think these are Scutellina lenticularis.
I am now up to 11mm, but still searching for a larger one.

 




0