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Max-fossils

Hi all,

 

Here are 11 different shells, bivalves and gastropods, that I would like to be able to ID down to species level. I got them in a little bag full of these little shells, . I have a decent idea of the genus of most, but I'm lost as to when it comes to species.

The shells are all from Ferriere-Larcon, Loire, France. It says on the label that they are from the "Falun de Pontelivien" ("falun" translates to "shelly", as in "shelly layer", referring to the main components of the layer: fossil shells), and that they are from the Serravallian stage of the Miocene (approx 12 mya).

 

These are just 11 of the different species, from about an estimate of 40 different ones. These are the ones I am most interested in IDing for now. But, if you maybe have a document or so with a list or plates of all the possible species from this location/formation, that would be even better!

 

In case better pictures are needed, let me know.

 

Thanks in advance for the help,

 

Max

 

 

#1: Cardita sp (species... ?)

 

IMG_8579.JPG

IMG_8578.JPG

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Max-fossils

#2: Anadara sp/Arca sp

IMG_8581.JPG

IMG_8580.JPG

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Max-fossils

#3: not sure about this one...

IMG_8585.thumb.JPG.15d6045fafd061accd243ad3598aed74.JPG

IMG_8584.thumb.JPG.530a8f9d340782eae8226d434e94a39c.JPG

 

 

#4: Cardita/Cyclocardia (well it's a Carditidae, but I'm not sure which one)

IMG_8583.thumb.JPG.0855a3436def905d296eadaf955836ae.JPG

IMG_8582.thumb.JPG.36cbdbdb9d2ecdb5471fca600dcd9ae5.JPG

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Max-fossils

#5: something similar to Columbella?

IMG_8586.thumb.JPG.f3437ffd5d911363a4394025e21cb277.JPG

IMG_8587.thumb.JPG.3c724a3fe44b128bae1c92c58ebeb623.JPG

 

 

#6: don't know...

IMG_8588.thumb.JPG.ea473de0d0a4b6950bb220da8968fbec.JPG

IMG_8589.thumb.JPG.4cdc83722c9b8bbcac8e250d9c24cc1e.JPG

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Max-fossils

#7: Capulus sp?

IMG_8590.thumb.JPG.85dc0730273f6889f9c52ee5937d20cf.JPG

IMG_8591.thumb.JPG.abbcf4eca7b0cbbd79fa7149e8f83423.JPG

 

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Max-fossils

#8: Diodora sp

IMG_8593.JPG

IMG_8592.JPG

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Max-fossils

#9: Clausinella sp

IMG_8598.thumb.JPG.4b1eba5d3f279b9c8bab8e22c57d3434.JPG

IMG_8599.thumb.JPG.f97102d7abcbc6b0fd4b6b80f3fa2b47.JPG

 

#10: Glycymeris sp

IMG_8594.thumb.JPG.11d169aba9e0f2addc7fe7b6c323415b.JPG

IMG_8595.thumb.JPG.8de918f32805c6efbb88f22397a15b9b.JPG

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Max-fossils

#11: the hinge is what is throwing me off of what genus/species this could be...

IMG_8596.JPG

IMG_8597.JPG

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tomclark

Some of the very same shell species from Miocene Florida.  Neat.

I often use for reference A Guide for Identifying Florida Fossil Shells & Other Invertebrates

by Lelia and William Brayfield

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Max-fossils
2 hours ago, tomclark said:

Some of the very same shell species from Miocene Florida.  Neat.

I often use for reference A Guide for Identifying Florida Fossil Shells & Other Invertebrates

by Lelia and William Brayfield

Alright thanks. The genera are probably similar to those from Florida, but the species most likely not. Species rarely occur on both sides of the Atlantic (of course, they sometimes do, but mostly that is not the case). 

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Coco

Hi Max,

 

I have mollusca from Ferrières-Larçon (37 - F) but I never id them... I know you are able to read french, so here is what I found (not necessary good quality :wacko:)

 

- http://hybodus.free.fr/min_et_foss/faluns_touraine_174_mai_1990.pdf

 

- http://biblio.naturalsciences.be/rbins-publications/memoirs-of-the-royal-institute-of-natural-sciences-of-belgium-second-series/83-1967/vol-83-3800216-text.pdf

 

For the second one, there is no plates but you can find names and search on the web. I haven't more publications about this area.

 

Coco

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Max-fossils
On 19-6-2018 at 2:43 PM, Coco said:

Hi Max,

 

I have mollusca from Ferrières-Larçon (37 - F) but I never id them... I know you are able to read french, so here is what I found (not necessary good quality :wacko:)

 

- http://hybodus.free.fr/min_et_foss/faluns_touraine_174_mai_1990.pdf

 

- http://biblio.naturalsciences.be/rbins-publications/memoirs-of-the-royal-institute-of-natural-sciences-of-belgium-second-series/83-1967/vol-83-3800216-text.pdf

 

For the second one, there is no plates but you can find names and search on the web. I haven't more publications about this area.

 

Coco

Merci pour les documents Coco!

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fifbrindacier
On ‎14‎/‎06‎/‎2018 at 9:36 AM, Max-fossils said:

#2: Anadara sp/Arca sp

IMG_8581.JPG

IMG_8580.JPG

I think this one is an Arca and maybe arcuata.

You can check this site : http://www.fossilshells.nl/

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Max-fossils
20 hours ago, fifbrindacier said:

I think this one is an Arca and maybe arcuata.

You can check this site : http://www.fossilshells.nl/

I think Arca is probably the best possibility for genus (although I wouldn't rule Anadara out 100% yet. Unlikely match, but still possible). Not so sure about it being A. arcuata though... do you have a picture/evidence to back that up?

And I already know that website, it's very good ;) 

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fifbrindacier

Here are some of mines, i think they are arcuata because this species is described in the geological documents on the place were i found them, but i'm not expert.

IMG_1869.thumb.JPG.7a59f930e92dc9e28f15567e19a7f729.JPGIMG_1868.thumb.JPG.abdadda8d03139a58a7cfd3459452bd4.JPG

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Max-fossils
1 hour ago, fifbrindacier said:

Here are some of mines, i think they are arcuata because this species is described in the geological documents on the place were i found them, but i'm not expert.

 

Well your shells are very similar to mine, but Arca arcuata seems to be an invalid taxon: http://www.marinespecies.org/aphia.php?p=taxdetails&id=753210

 

I really wonder what species our shells are, Sophie :headscratch:

Plus, the Arca genus has over 500 species! So trying to find the one that looks the most like ours is pretty much useless... :doh!:

(Which is why a paleontological paper about Ferriere-Larcon would be very useful)

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fifbrindacier

Yes, and there can be changes among individuals of the same kind. I have plenty of Arcae from the same place for which i'm not able to even narrow the species down.

And you know why ? :

I'm too old to be a teenager girl, not old enough to be a fairly old person with a fossil, my childs are more than 4 or 3, i don't have a fossil with a hat nor in a glass (but i do have one with a glover).

And moreover : i'm not a bearded man with a fossil.

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Max-fossils
14 hours ago, fifbrindacier said:

Yes, and there can be changes among individuals of the same kind. I have plenty of Arcae from the same place for which i'm not able to even narrow the species down.

And you know why ? :

I'm too old to be a teenager girl, not old enough to be a fairly old person with a fossil, my childs are more than 4 or 3, i don't have a fossil with a hat nor in a glass (but i do have one with a glover).

And moreover : i'm not a bearded man with a fossil.

:rofl:

 

Then again, bivalve species ID can be incredibly difficult, especially when the location they are coming from is so little mentioned in fossil-docs. So even a bivalve fanatic like me struggles with this (hence why I'm posting this topic!)

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