Jump to content

Marine Jurassic/Cretaceous help ID


Mantelliceras

Recommended Posts

Hello everyone! I found many fossils in my last trip to a mountain in Valencia, Spain (as far as I know the strata in that mountain are Jurassic/Cretaceous) but I can't identify these 4 fossils displayed in the pictures below. I would appreciate any help, thanks!. :)

 

20171006_174750.thumb.jpg.ebb3475ebec0e7b247f5deb3d21378a4.jpg

 

20171006_174846.thumb.jpg.abb9a8d46b553845b5326af240e0efef.jpg

 

20171006_174916.thumb.jpg.d5bad7edf1cf8c4a31e2366f45d16486.jpg

 

20171006_174958.thumb.jpg.1bfd72da320dc46d8b7506edaeb0b8bf.jpg   20171006_175006.thumb.jpg.bc0b1c000f43a927d236e828116bd711.jpg

 

Link to comment
Share on other sites

Second item may be an imprint of a Pinna  type clam shell.

Regards,

  • I found this Informative 2

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

The top one could be a baculite, but it looks like a fossil I found on the Oregon Coast in the US that i got identified as a pelagornis humerus, if you could take pictures of the ends that would be great

  • I found this Informative 1

"I am going to dig up dinosaurs whether they are liquid or solid"

Link to comment
Share on other sites

45 minutes ago, jpc said:

the top one looks like a Baculite, but I would have to see sutures on it to be sure.  

39 minutes ago, NWGeoFan said:

The top one could be a baculite, but it looks like a fossil I found on the Oregon Coast in the US that i got identified as a pelagornis humerus, if you could take pictures of the ends that would be great

Hope this can help, if not I will try to take better pictures, thanks

20171006_174801.thumb.jpg.881b866b25ebea35a2024daecd07d354.jpg

 

39 minutes ago, Fossildude19 said:

Second item may be an imprint of a Pinna  type clam shell.

Regards,

oh it really look like one of those, thanks!

Link to comment
Share on other sites

Doesnt look much like a bone structure from the picture i would agree with baculite. Do you have a magnifying glass you could hold up to your camera to get some close up pictures? @Mantelliceras

"I am going to dig up dinosaurs whether they are liquid or solid"

Link to comment
Share on other sites

Doesn't look like bone to me... :unsure: 

 

 

20171006_174801.jpg.c426e6968bd2c13c92c9249f67432c6a.jpg

 

 

20171006_174750.jpg.ba6a3a56da76cd7cefcbb6f4c4f754fd.jpg

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

Yeah it doesnt look like bone to me either and if it's a baculites it's pretty worn out, cant really see shell, that's why I can't identify it well. I found another one near the first but smaller here are more pictures:

20171006_195751.thumb.jpg.239196532dba6fcfc7e32bf4224442bc.jpg    20171006_195811.thumb.jpg.28f9c0c2aa6acfa19ad0da9e3bd8bac9.jpg    20171006_1958232.thumb.jpg.da19d94ae98e0bf45090112439c93b71.jpg

 

Thanks for your help, appreciate it.

Link to comment
Share on other sites

I'm thinking infilled burrow for the long one.  :unsure: 

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

 

8 minutes ago, Fossildude19 said:

I'm thinking infilled burrow for the long one.  :unsure: 

 

;) 

I agree.

5 minutes ago, supertramp said:

 

maybe a burrow cast?

  • I found this Informative 1

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

No worries. It is good to have multiple opinions. :D 

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

__________________________________________________
"In every walk with nature one receives far more than he seeks."

John Muir ~ ~ ~ ~   ><))))( *>  About Me      

Link to comment
Share on other sites

The cross section of the long cylindrical specimen is surprisingly perfectly oval for a burrow.  It could perhaps be a Baculites, with most of the specimen being living chamber which would account for the lack of obvious sutures.  It may be of interest to see the narrower end in close-up to see if sutures are visible there.  Of course this also all depends on the age of the rock. Does Jurassic/Cretaceous mean close to the Jurassic/Cretaceous boundary, or does it mean rocks of both Jurassic and Cretaceous age are present?  Are Upper Cretaceous (say, Turonian-Mastrichtian) rocks present?

 

Don

  • I found this Informative 1
Link to comment
Share on other sites

You probably dont see any shell @Mantelliceras as it probably seperated from the structure when you removed it from the ground? This would leave the more solid filled center.

"I am going to dig up dinosaurs whether they are liquid or solid"

Link to comment
Share on other sites

Anyone else notice these oddly similar notches? 

IMG_0287.JPG

"I am going to dig up dinosaurs whether they are liquid or solid"

Link to comment
Share on other sites

3 hours ago, FossilDAWG said:

The cross section of the long cylindrical specimen is surprisingly perfectly oval for a burrow.  It could perhaps be a Baculites, with most of the specimen being living chamber which would account for the lack of obvious sutures.  It may be of interest to see the narrower end in close-up to see if sutures are visible there.  Of course this also all depends on the age of the rock. Does Jurassic/Cretaceous mean close to the Jurassic/Cretaceous boundary, or does it mean rocks of both Jurassic and Cretaceous age are present?  Are Upper Cretaceous (say, Turonian-Mastrichtian) rocks present?

 

Don

 

I'm afraid I cannot answer to your question accurately, being honest I dont think I know enough to determine wether the rocks are from jurassic period or cretaceous. It's a mining quarry at the mountain's slope and I can see different strata just by walking a few meters. There are jurassic and lower cretaceous for sure, but I cant be more accurate and in the worst scenary I even might be wrong. I took some pictures of the narrow end, also notice that It came out in many pieces that I had to glue together since the rock were very fragmented.

 

20171007_001717.thumb.jpg.10f9b2b98bc91997cb55163ceb7718ca.jpg    20171007_001726.thumb.jpg.58ad3fb8cd205b343aab17da267532db.jpg

 

3 hours ago, NWGeoFan said:

You probably dont see any shell @Mantelliceras as it probably seperated from the structure when you removed it from the ground? This would leave the more solid filled center.

 

This is a picture of two fragments of the rocks where the pieces were attached. I cant see much left on them.

 

20171007_001612.thumb.jpg.1ea2a3388014de49797f08cb647bee26.jpg

Link to comment
Share on other sites

I don't know if it helps, but a few years ago I've found in the Upper Cretaceous Gosau sediments of Romania some specimens similar to your long and flattened ones. Take a look.

 

IMG_20150316_174945.thumb.jpg.49b5917f54aee5cca541f75a0bae66b8.jpgIMG_20150316_175023.thumb.jpg.3e92e2791ff6b8cf8bfc0659d7f0b669.jpgIMG_20150316_175036.thumb.jpg.ad5bc6a52602e244dc430f07bb935359.jpgIMG_20150316_175526.thumb.jpg.69bd77ccaccf3cf699b58d04034b8e02.jpg

" We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. "

Thomas Mann

My Library

Link to comment
Share on other sites

This is tough. I lean toward it being the steinkern of a baculite for 2 reasons. Firstly, the cross section shows an oval form which fits to the shape of Baculites and I've seen similar formations in the cretaceous of northern Germany which have been identified as such, and secondly, the structure looks too uniform to me to be the cast of a burrow.

  • I found this Informative 2

 

Greetings from the Lake of Constance. Roger

http://www.steinkern.de/

Link to comment
Share on other sites

I am all for baculite on this one.  See Ludwigia's post just above, and in the touched up photo provided by FossilDude (Thanks, TYm) the bottom edge shows enough regularly spaced wavy edge for me to call it a bacuilite.   Infilled shell,and very worn.  I also see a Pen Shell (Pinna) in one of the other specimens.

  • I found this Informative 2
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
×
×
  • Create New...