What is that stain ?
- fifbrindacier
- Berichten: 73
- Lid geworden op: 07 dec 2016, 22:36
- Been thanked: 2 times
What is that stain ?
Hi everybody. In my collection i have some fossils i inherited a few years ago. In those ones i have that little goniolina hexagona from the Kimmeridgian of Angoulins sur mer, in the department of Charentes-Maritimes.
I always wondered what could be that stain behind the Goniolina (behind the left side of it on the first photo).
It looks like some kind of phoronid but could also be mineral.
Regards, Sophie.
- fifbrindacier
- Berichten: 73
- Lid geworden op: 07 dec 2016, 22:36
- Been thanked: 2 times
Re: What is that stain ?
I must precise that the stain is about 1,5 centimeters long.
[Edited by fifbrindacier on 14-10-2017 at 16:39 GMT +1]
[Edited by fifbrindacier on 14-10-2017 at 16:39 GMT +1]
- FossilDude
- Administrator
- Berichten: 2362
- Lid geworden op: 24 nov 2007, 22:23
- Locatie: Leuven, België
- Has thanked: 322 times
- Been thanked: 304 times
- Contacteer:
Re: What is that stain ?
I am sorry Sophie, I have no idea what this stain could be... These kind of things are often very difficult. Perhaps it is 'something' fossil, perhaps it is not.
cheers,
Johan
cheers,
Johan
Van je hobby je beroep maken.... kan het nog beter? ;)
- KoenJ
- Berichten: 1289
- Lid geworden op: 23 feb 2015, 13:28
- Has thanked: 4 times
- Been thanked: 2 times
Re: What is that stain ?
Hi! I think it's a serpulid seen from below. You see it from the point where it used to be attached to the shell.
In the Dutch-Belgian cretaceous they're quite common in sea urchins, oisters and the remains of aragonitic bivalves and gastropodes.
[Bewerkt door KoenJ op 18-10-2017 om 18:04 NL]
In the Dutch-Belgian cretaceous they're quite common in sea urchins, oisters and the remains of aragonitic bivalves and gastropodes.
[Bewerkt door KoenJ op 18-10-2017 om 18:04 NL]
Groeten,
Koen
Koen
- fifbrindacier
- Berichten: 73
- Lid geworden op: 07 dec 2016, 22:36
- Been thanked: 2 times
Re: What is that stain ?
I thought you might be right, my supposition of phoronid comes from that funny stain at the top of it, with those two points in the alignment of each half part of the rest of the stain (you can see some "kind" of vertical separation on it).
In fact, if you look well, it seems that the Goniolina and this are on a deteriored shell of gasteropod.
Regards,
Sophie.
[Edited by fifbrindacier on 19-10-2017 at 18:17 GMT +1]
[Edited by fifbrindacier on 19-10-2017 at 18:18 GMT +1]
In fact, if you look well, it seems that the Goniolina and this are on a deteriored shell of gasteropod.
Regards,
Sophie.
[Edited by fifbrindacier on 19-10-2017 at 18:17 GMT +1]
[Edited by fifbrindacier on 19-10-2017 at 18:18 GMT +1]