MarcoSr Posted January 11, 2014 Share Posted January 11, 2014 I want to thank John S. for sending me two gallons of well washed coarse gravel and several cups of fine gravel ready to search from a creek in Gainesville, Florida. John S. made a special trip to Gainesville to get this matrix for me and John H. The matrix is from the Miocene Coosawhatchee Formation, Hawthorn Group. However, as with all creeks, there can be recent material in them. There were a lot of really nice specimens in the gravel with great colors and preservation. I found a large number of shark, ray and fish fossils, multiple mammal teeth which I believe are recent, a snake vertebra, crab claw tips and several micro sand dollars. I am posting some of the nicer and more unusual specimens which I found which range in size from 1mm to 13mm. 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. Each matrix that I search makes me more of an avid micro tooth collector. If anyone has or can collect good matrix with shark, ray, and fish micros please send me a PM. Some of the shark teeth and a shark vertebra which I found: Carcharhinus, There were multiple species: Hemipristis: Continued in the next reply. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 11, 2014 Author Share Posted January 11, 2014 (edited) Isogomphodon (edited per Al Dent's post below): Ginglymostoma, I don’t know what they ate, but they always seem to have feeding damage to the crowns): Negaprion: Rhizoprionodon: Sphyrna: Continued in the next reply. Marco Sr. Edited April 7, 2014 by MarcoSr 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 11, 2014 Author Share Posted January 11, 2014 (edited) Several shark teeth that I’m not sure of the id: Shark Vertebra: Some of the ray teeth and several ray barbs which I found: Aetobatus: Dasyatis, including a specimen that has two teeth fused together: Mobula: Myliobatis: Rhinobatos, I usually don’t find these in the Miocene of the East Coast. However, based on the central uvula length and shape and what looks like lateral uvula I believe this specimen is a Rhinobatos: Continued in the next reply. Marco Sr. Edited January 11, 2014 by MarcoSr 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 11, 2014 Author Share Posted January 11, 2014 (edited) Rhinoptera: Rhynchobatus: Ray Barbs: A partial fish mouth plate, and some of the fish teeth which I found: Continued in the next reply. Marco Sr. Edited January 11, 2014 by MarcoSr 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 11, 2014 Author Share Posted January 11, 2014 (edited) Fish teeth continued: Snake vertebra: Some of the recent mammal teeth which I found: Crab claw tips: Micro sand dollars: A jaw fragment (Maybe a crab claw fragment. See Al Dente's post below) and a tooth that I’m not sure of the id. I believe the tooth is fish versus mammal: Marco Sr. Edited January 12, 2014 by MarcoSr "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
Trevor Posted January 11, 2014 Share Posted January 11, 2014 Excellent finds. : ) Link to comment Share on other sites More sharing options...
snolly50 Posted January 11, 2014 Share Posted January 11, 2014 Once again, excellent photos that really give the viewer a clear impression of the fossils. Thanks. Human beings, who are almost unique in having the ability to learn from the experience of others, also are remarkable for their apparent disinclination to do so. - Douglas Adams, Last Chance to See Link to comment Share on other sites More sharing options...
Triops808 Posted January 11, 2014 Share Posted January 11, 2014 What wonderful fossils! You make me want to try micro-fossiling very much! Congratulations MarcoSr. Link to comment Share on other sites More sharing options...
Al Dente Posted January 12, 2014 Share Posted January 12, 2014 Nice fossils. I think this might be Isogomphodon: 1 Link to comment Share on other sites More sharing options...
Al Dente Posted January 12, 2014 Share Posted January 12, 2014 I think your jaw fragment might be part of a crab claw. The knobs on crab claws have a lot of calcite and sometimes calcite will dissolve away leaving hollow spaces. The texture of the remainder of your fossil looks very crab like. Link to comment Share on other sites More sharing options...
FossilFreak Posted January 12, 2014 Share Posted January 12, 2014 I love the two fused teeth. Great pictures. Link to comment Share on other sites More sharing options...
Pagurus Posted January 12, 2014 Share Posted January 12, 2014 Great photos as always, and thanks for the IDs. I hadn't seen a micro sand dollar before. Thanks for posting. Mike Start the day with a smile and get it over with. Link to comment Share on other sites More sharing options...
Sacha Posted January 12, 2014 Share Posted January 12, 2014 Really nice and as everyone agrees, your photos are amazing. Glad this material has so much to offer. It makes the trip worthwhile. Makes allot of work for you though......taking all those picture, sorting and labeling all those finds.....taking up all that storage space.... Link to comment Share on other sites More sharing options...
MarcoSr Posted January 12, 2014 Author Share Posted January 12, 2014 Really nice and as everyone agrees, your photos are amazing. Glad this material has so much to offer. It makes the trip worthwhile. Makes allot of work for you though......taking all those picture, sorting and labeling all those finds.....taking up all that storage space.... John Thank you again for all your effort in getting this matrix. It is truly appreciated. I really enjoy all the work of searching, labeling, picture taking etc. Although storage is an issue with my wife, when you see how much room my fossils take up in our house. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 12, 2014 Author Share Posted January 12, 2014 Great photos as always, and thanks for the IDs. I hadn't seen a micro sand dollar before. Thanks for posting. Mike Mike I was aware of the micro sand dollars but these were the first that I have found. I was actually surprised to find them in this matrix. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 12, 2014 Author Share Posted January 12, 2014 I love the two fused teeth. Great pictures. I wish you could find a complete fused Dasyatis dentition but even just a couple of fused teeth are pretty uncommon. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 12, 2014 Author Share Posted January 12, 2014 What wonderful fossils! You make me want to try micro-fossiling very much! Congratulations MarcoSr. My main reason for posting is to get others interested in micro fossils. It is both rewarding and very relaxing to search matrix. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
squali Posted January 12, 2014 Share Posted January 12, 2014 Thanks for the great posts It's hard to remember why you drained the swamp when your surrounded by alligators. Link to comment Share on other sites More sharing options...
MarcoSr Posted January 12, 2014 Author Share Posted January 12, 2014 Nice fossils. I think this might be Isogomphodon: I edited my post. I originally wasn't comfortable with my id for this tooth but really couldn't come up with another reasonable id. Thank you for pointing out the genus Isogomphodon to me. I wasn't familiar with it. But after researching the genus, the tooth definitely seems to match a lateral tooth. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
MarcoSr Posted January 12, 2014 Author Share Posted January 12, 2014 I think your jaw fragment might be part of a crab claw. The knobs on crab claws have a lot of calcite and sometimes calcite will dissolve away leaving hollow spaces. The texture of the remainder of your fossil looks very crab like. I wasn't comfortable with the way the apparent tooth sockets looked. After examining the specimen a crab claw fragment is definitely a good possibility. The texture is crab claw like but also matches extreme water worn bone that I have seen. The thickness and shape are consistent with a crab claw. I'm about 90% convinced. It is always tough to convince the part of me that would like the specimen to be something more unusual than just a crab claw fragment. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
jcbshark Posted January 12, 2014 Share Posted January 12, 2014 Awesome work as is your M.O. Marco! I really like those sand dollars,I would have never thought ones so small would have survived intact.I am also partial to pathologicals and those fused teeth are really nice.I love those little Hemis too Every once in a great while it's not just a big rock down there! Link to comment Share on other sites More sharing options...
Sacha Posted January 12, 2014 Share Posted January 12, 2014 Tiny sand dollars and sea biscuits are common at the mouth of the Withlacoochee River on spoil islands consisting of dredged and deteriorated Ocala Limestone. Gainesville sits on a closely associated layer so more types should be available. Link to comment Share on other sites More sharing options...
John Hamilton Posted January 12, 2014 Share Posted January 12, 2014 Several shark teeth that I’m not sure of the id: Shark Tooth1 2mm.jpgShark Tooth2 3mm.jpgShark Tooth3 4mm.jpg Shark Vertebra: Shark Vertebra1 3mm.jpg Some of the ray teeth and several ray barbs which I found: Aetobatus: Aetobatus sp.1 8mm.jpg Dasyatis, including a specimen that has two teeth fused together: Dasyatis sp.1 2mm.jpgDasyatis sp.2 3mm.jpgDasyatis sp.3 2mm.jpgDasyatis sp.4 3mm.jpgDasyatis sp.5 2mm.jpg Dasyatis sp.6 4.5mm.jpg Mobula: Mobula sp.1 2mm.jpg Myliobatis: Myliobatis Sp.1 7mm.jpgMyliobatis Sp.2 10mm.jpg Rhinobatos, I usually don’t find these in the Miocene of the East Coast. However, based on the central uvula length and shape and what looks like lateral uvula I believe this specimen is a Rhinobatos: Rhinobatos sp.1 1mm.jpg Continued in the next reply. Marco Sr. That fused Dasyatis is beautiful. I can't wait until Monday when my box arrives! Link to comment Share on other sites More sharing options...
John Hamilton Posted January 12, 2014 Share Posted January 12, 2014 Fish teeth continued: Fish Tooth7 4mm.jpg Lagodon sp.1 3.5mm.jpgLagodon sp.2 3mm.jpg Sphyraena sp.1 4mm.jpgSphyraena sp.2 5mm.jpgSphyraena sp.3 5.5mm.jpg Snake vertebra: Snake Vertebra1 6mm.jpg Some of the recent mammal teeth which I found: Mammal tooth1 4mm.jpgMammal tooth2 2.5mm.jpgMammal tooth3 5mm.jpgMammal tooth4 3mm.jpg Crab claw tips: Crab Claw Tip1 13mm.jpgCrab Claw Tip2 10mm.jpgCrab Claw Tip3 7mm.jpg Micro sand dollars: Sand Dollar1 7mm.jpgSand Dollar2 3mm.jpg A jaw fragment (Maybe a crab claw fragment. See Al Dente's post below) and a tooth that I’m not sure of the id. I believe the tooth is fish versus mammal: Jaw Fragment1 10mm.jpgTooth1 3.5mm.jpg Marco Sr. I'm not sure type of fish it is but that is definitely a fish tooth. I find alot of them in the matrix Jogn S and Jeff send me. Link to comment Share on other sites More sharing options...
MarcoSr Posted January 13, 2014 Author Share Posted January 13, 2014 Awesome work as is your M.O. Marco! I really like those sand dollars,I would have never thought ones so small would have survived intact.I am also partial to pathologicals and those fused teeth are really nice.I love those little Hemis too Jeff I also was surprised that the sand dollars were intact. I found three and all three were complete. The fused Dasyatis were my favorite from the matrix. Marco Sr. "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now