Shark, Ray, Fish, And Other Micros From Gainesville Florida Part 3

[MarcoSr]

John S. sent to me two gallons of well washed coarse gravel from his second trip to Gainesville, Florida. The gravel is from the Miocene Coosawhatchee Formation, Hawthorn Group. I’m posting some of the nicer specimens below. I really like the preservation and the great colors from this site. I again found a large number of shark, ray and fish fossils. The specimens which I found range in size from 1mm to 24mm. If you place your cursor on a JPEG image you will see the file name which will have the specimen id as best that I can determine and the specimen size. If you can identify the specimens further please do so.

Some of the shark teeth:

Alopias:

Carcharhinus, There were multiple species:

Ginglymostoma:

Sphyrna:

Some of the ray teeth and a ray dermal element which I found:

Aetobatis, Note these are teeth from the upper plate:

Dasyatis:

Continued in the next reply.

Marco Sr.

[MarcoSr]

Rhinoptera:

Rhynchobatus:

Ray Dermal Element

Partial fish mouth plates and some of the fish teeth which I found:

Continued in the next reply.

Marco Sr.

Edited February 24, 2014 by MarcoSr

[MarcoSr]

Some fossil osteoderms and probably a recent mammal tooth which I found:

A partial lizard jaw:

Crab claw tip:

Micro sand dollars and a specimen that I need id help with:

One of four beads which I have found from this site (I would guess that it is modern):

Continued in the next reply.

Marco Sr.

Edited February 24, 2014 by MarcoSr

[MarcoSr]

Several specimens that I need id help with:

Maybe a modern bone:

Marco Sr.

Edited February 24, 2014 by MarcoSr

[Al Dente]

Hello Marco

Your sesame seed shaped echinoid is Fibularia vaughani. It is Eocene. Your osteoderm looks like it could be modern nine-banded armadillo.

[old bones]

Wow! Great finds Marco. That looks like some really nice matrix. (I need to get some of that!) lol. I see you have found a lizard jaw too. That is such a finely made thing, it's a wonder that they stay in one piece. That unidentified thingy is very interesting...kind of looks like a gill cover or something like that... Your photos are terrific as always. I like the lighter colours in that matrix.

[Sacha]

Cool finds Marco and thanks for sharing a very nice sample with me. I have more of that matrix available if the snow continues and you can't get out.

[PA Fossil Finder]

That is a really cool lizard jaw.

[sixgill pete]

Marco, I think this tooth may be from the family Trichiuridae.

[MarcoSr]

Hello Marco

Your sesame seed shaped echinoid is Fibularia vaughani. It is Eocene. Your osteoderm looks like it could be modern nine-banded armadillo.

John S. who collected the matrix said that there was Eocene below the Miocene which is probably where the micro sand dollars and echinoid came from. Thank you for the id help.

I'm not very familiar with the modern armadillo. I thought these osteoderms might be a fossil like Propraopus bellus. These osteoderms are only 2mm thick.

Marco Sr.

[MarcoSr]

Cool finds Marco and thanks for sharing a very nice sample with me. I have more of that matrix available if the snow continues and you can't get out.

John

Thank you for this matrix. It definitely had some really interesting specimens.

Marco Sr.

[MarcoSr]

That is a really cool lizard jaw.

The lizard jaw was my favorite specimen from this matrix. I don't see lizard material very often.

Marco Sr,

[MarcoSr]

Wow! Great finds Marco. That looks like some really nice matrix. (I need to get some of that!) lol. I see you have found a lizard jaw too. That is such a finely made thing, it's a wonder that they stay in one piece. That unidentified thingy is very interesting...kind of looks like a gill cover or something like that... Your photos are terrific as always. I like the lighter colours in that matrix.

You might want to contact John for some of the matrix. The specimens from Gainesville have a variety of really nice colors. I really do like the lizard jaw.

Marco Sr.

[MarcoSr]

Marco, I think this tooth may be from the family Trichiuridae.

Don

Thank you for the id help. Fish teeth are just so hard to identify with so many species.

Marco Sr.

[jcbshark]

Outstanding pics as is your MO Marco! They do have some very nice colors as well. The first tooth, Alopias, is that a thresher? If so I wondered if they could be found here. I've never so much as seen even a broken one but then again I only found my first cow shark tooth last year and I knew they were found here lol, albeit not often. I really like the echinoids too. I have traded some matrix to a couple folks who were kind enough to sent me some echinoids and it's making me want to take a trip to No. Florida to find my own in some of the Eocene material we have.

[MarcoSr]

Outstanding pics as is your MO Marco! They do have some very nice colors as well. The first tooth, Alopias, is that a thresher? If so I wondered if they could be found here. I've never so much as seen even a broken one but then again I only found my first cow shark tooth last year and I knew they were found here lol, albeit not often. I really like the echinoids too. I have traded some matrix to a couple folks who were kind enough to sent me some echinoids and it's making me want to take a trip to No. Florida to find my own in some of the Eocene material we have.

Yes, I believe my tooth is a thresher. Per John S. there is probably some Eocene Limestone under the Miocene where he took the matrix from in Gainesville. John S. might help you with some Eocene sites.

Marco Sr.

[Hunt4teeth]

Those are some real nice finds and really great pics Marco. I see you got a good quality nurse shark tooth in this batch.

[busyeagle]

Yeah that Ginglymostoma is pretty! Nice colors.

[MarcoSr]

Those are some real nice finds and really great pics Marco. I see you got a good quality nurse shark tooth in this batch.

Yeah that Ginglymostoma is pretty! Nice colors.

The other nurse shark teeth that I had found previously from this site had most of the crowns missing but I had thought that they were Nebrius. This tooth and them also are probably Ginglymostoma.

Marco Sr.