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Showing results for tags 'Hawthorn'.
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From the album: Gainesville Florida Microscopic Miocene
This is an Ichnofossil formed by a worm. They are a U shaped tunnel. A paper by Bromley and Alessandro (1983) "Bioerosion in the Pleistocene of Southern Italy: Icnogenera Caulostrepsis and Maeandropolydora" identifies species and describes them very well. Thanks to @abyssunder for the heads up on this ID.-
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From the album: Gainesville Florida Microscopic Miocene
This is a toothplate from a fish within the family Diodontidae. Thanks to @Al Dente for the assist with this ID (as well as several other specimens).-
- diodontid toothplate
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From the album: Gainesville Florida Microscopic Miocene
The isolated teeth from the Drum (Pogonias sp) are very common in the gravel. The crown tends to be black and shiny but the teeth come in a variety of shapes from broad and flat to small conical and sometimes with a point or crest in the center. They are set in a bony plate and have a straight sided root, although it is commonly missing. -
From the album: Gainesville Florida Microscopic Miocene
These are fish teeth which are similar to the Drum (Pogonias sp) but have some differences. The crown tends to be less black and shiny and the roots are different (tapered and striated). I'm just not sure if this is variation within the Drum tooth set or a different type of fish. If anyone has seen this particular morphology in a drum or other fish, let me know.-
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From the album: Gainesville Florida Microscopic Miocene
These are tooth sets and isolated teeth from a Wrasse, most likely Labrodon pavimentatum?. Although somewhat similar to the commonly found Drum Fish (Pogonias sp.), these teeth are stacked on top of each other (called phyllodont teeth) and lack roots unlike the Pogonias which have roots and are set in a single layer in a bony mouth plate. Many of the teeth have a figure 8 type configuration to the base and in this gravel, they tend to be a bluish color.-
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From the album: Gainesville Florida Microscopic Miocene
A variety of fish vertebrae, probably bony fish. Top one is different and may be from something else.-
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From the album: Gainesville Florida Microscopic Miocene
A variety of teeth, most likely from fish, that have not been ID'd to any specific type.-
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From the album: Gainesville Florida Microscopic Miocene
Probably fish teeth, but the type or species is unknown.-
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From the album: Gainesville Florida Microscopic Miocene
These teeth are thicker and the edges more rounded than "normal" Barracuda teeth, but with the distinctive enamaloid cutting edges, I believe they just show variation within the tooth set.-
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From the album: Gainesville Florida Microscopic Miocene
These could be burrow fills although one person has suggested some could be a Corraline Algae.-
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From the album: Gainesville Florida Microscopic Miocene
Numerous types of "crab" claws.-
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From the album: Gainesville Florida Microscopic Miocene
I found lots of internal molds/casts of both Bivalves and Gastropods.-
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From the album: Gainesville Florida Microscopic Miocene
Looks to be a broken gator tooth.-
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From the album: Gainesville Florida Microscopic Miocene
These are fragments of bones and a partial Horse? tooth.-
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From the album: Gainesville Florida Microscopic Miocene
These are casts of individual coralites within a colonial coral-
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From the album: Gainesville Florida Microscopic Miocene
These are an Ichnofossil that I have tentatively assigned to Gatrochaenolites. They may be related to the other Ichnofossil here, Caulostrepsis.-
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From the album: Gainesville Florida Microscopic Miocene
These appear to be casts of something, just not sure what yet.-
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Well, I know I said my last post on these tiny fossils would be my last, but I was wrong. Everyone was very helpful with the previous questions (as usual) so I'm back with a couple more tiny teeth out of the Gainesville Creek matrix that is generally Miocene aged Hawthorn Fm. All of these are pretty small, most just a few mm's across. You can see previous posts here for other info or ID's: http://www.thefossilforum.com/index.php?/topic/119097-gainesville-shark-teeth-question/&tab=comments#comment-1305867 http://www.thefossilforum.com/index.php?/topic/114209-north-florida-fun/&tab=comments#comment-1264293 http://www.thefossilforum.com/index.php?/topic/119245-florida-mysteries/&tab=comments#comment-1309402 The first one is what I have tentatively called a Raja type tooth. But I know these are rare out of this material and it looks a bit different than other teeth labelled as this, so I am uncertain. Sorry for the big globs of sticky stuff in two of the pictures, I still have not mastered some of the fine points of pulling individual features out of pictures to clean them up - a work in progress. The next one are some ray dermal scutes. OK, I feel pretty good about the top two, but not the bottom two. In fact the lower right is almost certainly something else, I just don't know what. Any thoughts? Next up are some drum fish type teeth. I have separated what I picked from the matrix into three general types, two of which I feel good about the ID's. The first are what are generally called Pogonias, a genus of Drum fish. In this matrix, they are generally small, black in color, variably shaped and with a root that is rather plain (two on right side of picture). They are set as one layer of teeth in a bony plate. The second group of teeth are often blue in color, tend to be oblong, often have a figure-8 shape to the root and I found numerous multi-tooth associations where there are many teeth stacked on top of each other. I found several posts on the the forum and on the web that identified these as wrasse teeth, probably of the genus Labrodon. It is the third set of teeth that I am unsure of, they look similar to Pogonias, but generally are not as black and smooth and have a different root. it is a bit tapered and is striated. Any idea on what these are from? Lastly are several types of what I have thrown into my "unknown fish teeth" bucket. Maybe that is how they will remain and that is fine, maybe some are not even fish teeth. If anyone recognizes any of them, that would be great! The first two look similar to barracuda teeth, of which I found many, but differ in shape a bit. The first ones are thicker and not as symmetrical as my barracuda teeth and the second ones have a distinctive "S"-shape to them. The next ones: I just don't know. Ok, that's all for now. Thanks for any help you can offer. Mike
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I have three teeth that were picked from matrix out of a creek in Gainesville Florida (thanks Ken, @digit). Fossils from here are generally Miocene (Hawthorn Fm) in age. The scale bar at the bottom is 1 cm per color division. I readily admit to being terrible at shark tooth ID; the dizzying array of variability and overlap is just too much for this old brain I guess . I have the Florida Paleontological Society publication (Boyd, 2016), a couple other books and have spent a bunch of time at elasmo.com, but these three teeth have me questioning myself. At first blush, I want to call them some species of Carcharhinus, but then I don't see a good nutrient groove (maybe just eroded away?). They are more triangular then the dozens of other Carcharhinus specimens I have from this site but the serrations and roots (what's left of them) look similar. Appreciate any help because I'm just going in circles.
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From the album: 2012/13 Discoveries
Hemi Gods Love me- 1 comment
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- Hawthorn
- Hemipristis serra
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