PA Fossil Finder Posted February 22, 2014 Share Posted February 22, 2014 This is a small tooth (or denticle?) from some of the Shark Tooth Hill matrix Caldigger sent me. I have no idea what it is! Middle Miocene in age. Stephen Link to comment Share on other sites More sharing options...
Auspex Posted February 22, 2014 Share Posted February 22, 2014 In essence, it looks like a fish tooth (the 'cap' on the tip gives me that impression). What are its dimensions? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Al Dente Posted February 22, 2014 Share Posted February 22, 2014 It looks like a fish tooth that has been eroded. Link to comment Share on other sites More sharing options...
PA Fossil Finder Posted February 22, 2014 Author Share Posted February 22, 2014 What are its dimensions? I knew I forgot something when I posted this It is 4 mm. long. Stephen Link to comment Share on other sites More sharing options...
PA Fossil Finder Posted February 22, 2014 Author Share Posted February 22, 2014 Here is another mystery I found today: Middle Miocene in age, 3 mm. long. Stephen Link to comment Share on other sites More sharing options...
PA Fossil Finder Posted February 22, 2014 Author Share Posted February 22, 2014 And these might be baby makos (shortfin or longfin?): Middle Miocene from Shark Tooth Hill. Stephen Link to comment Share on other sites More sharing options...
PA Fossil Finder Posted February 22, 2014 Author Share Posted February 22, 2014 Are these catshark teeth, or Triakis sp.? Middle Miocene from Shark Tooth Hill. Stephen Link to comment Share on other sites More sharing options...
Al Dente Posted February 23, 2014 Share Posted February 23, 2014 The tooth in post 5 is another bony fish tooth. I think the teeth in post 7 are Triakis. Link to comment Share on other sites More sharing options...
siteseer Posted April 28, 2014 Share Posted April 28, 2014 I think those are the posterior teeth of Carcharodon (aka Isurus aka Cosmopolitodus) hastalis. And these might be baby makos (shortfin or longfin?): DSCF0036.JPG DSCF0041.JPG Middle Miocene from Shark Tooth Hill. Link to comment Share on other sites More sharing options...
siteseer Posted April 28, 2014 Share Posted April 28, 2014 I agree with Al Dente that these are Triakis teeth. Catshark teeth are rare even when you are focusing on micro-teeth, Triakis teeth might be considered somewhat uncommon. Catshark teeth are generally similar in form but tend have more slender crowns with higher labial folds, more widely branching root lobes that form a U-shaped basal margin, and a distinct lingual protuberance. Are these catshark teeth, or Triakis sp.? DSCF0043.JPG Middle Miocene from Shark Tooth Hill. Link to comment Share on other sites More sharing options...
Sélacien34 Posted May 16, 2014 Share Posted May 16, 2014 The first bony fish : sparidae The second : Dentex sp., genus considered as close to sparidae Agree with Hastalis posterior tooth And Triakis sp. or beali Link to comment Share on other sites More sharing options...
lissa318 Posted May 16, 2014 Share Posted May 16, 2014 Nice finds PA! Link to comment Share on other sites More sharing options...
MarcoSr Posted May 16, 2014 Share Posted May 16, 2014 The first bony fish : sparidae Sparus cinctus.PNG The second : Dentex sp., genus considered as close to sparidae Dentex fossilis.PNG Agree with Hastalis posterior tooth hastalis.PNG And Triakis sp. or beali triakis_tanoutensis.jpg I am always looking for good reference material for fish teeth. Can you point me to the source of your fish tooth figures? 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...
old bones Posted May 16, 2014 Share Posted May 16, 2014 I am always looking for good reference material for fish teeth. Can you point me to the source of your fish tooth figures? Marco Sr. I agree. I am tired of just labeling mine 'fish teeth', and really would like to know the real names. Link to comment Share on other sites More sharing options...
fossilized6s Posted May 16, 2014 Share Posted May 16, 2014 I will be the third to agree, it would be nice to find a nice micro reference book or pdf for verts. Nice finds! ~Charlie~ "There are those that look at things the way they are, and ask why.....i dream of things that never were, and ask why not?" ~RFK ->Get your Mosasaur print ->How to spot a fake Trilobite ->How to identify a CONCRETION from a DINOSAUR EGG Link to comment Share on other sites More sharing options...
Sélacien34 Posted May 16, 2014 Share Posted May 16, 2014 I am always looking for good reference material for fish teeth. Can you point me to the source of your fish tooth figures? Marco Sr. My sources are multiple, we find many teeth like that in the French Miocene : "vertébrés (crocodiliens, poissons) du miocène marin de l'algarve occidentale" M. T. Antunes, S. Jonet, A. Nascimento, for exemple. Link to comment Share on other sites More sharing options...
MarcoSr Posted May 16, 2014 Share Posted May 16, 2014 My sources are multiple, we find many teeth like that in the French Miocene : "vertébrés (crocodiliens, poissons) du miocène marin de l'algarve occidentale" M. T. Antunes, S. Jonet, A. Nascimento, for exemple. Thank you. I just downloaded the paper from the web and it looks like it will be very helpful. It is in French but I can read French pretty well. 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...
old bones Posted May 16, 2014 Share Posted May 16, 2014 My sources are multiple, we find many teeth like that in the French Miocene : "vertébrés (crocodiliens, poissons) du miocène marin de l'algarve occidentale" M. T. Antunes, S. Jonet, A. Nascimento, for exemple. This is great! Thank you. I Google translated it and already recognize many of my otherwise nameless teeth! Link to comment Share on other sites More sharing options...
Sélacien34 Posted May 16, 2014 Share Posted May 16, 2014 With pleasure, that's cool ! Don't hesitate to say that this is informative, I need a little recognition LOL Link to comment Share on other sites More sharing options...
old bones Posted May 16, 2014 Share Posted May 16, 2014 Well I couldn't get the entire pdf to translate, it's too large. But it doesn't matter as the latin and the pictures are what I'm after right now. Thanks again Link to comment Share on other sites More sharing options...
Sélacien34 Posted May 16, 2014 Share Posted May 16, 2014 I'm a french guy, most of the publications are in English, you can imagine what it is for me, i read and speak rather poorly Link to comment Share on other sites More sharing options...
siteseer Posted May 19, 2014 Share Posted May 19, 2014 Hi Selacien34, I don't think the Sharktooth Hill has been identified to species previously other than T. beali. Unfortunately, that species has been shown to be invalid - based on a tooth fragment too large to belong to Triakis (probably a partial Hemipristis tooth). Jess The first bony fish : sparidae Sparus cinctus.PNG The second : Dentex sp., genus considered as close to sparidae Dentex fossilis.PNG Agree with Hastalis posterior tooth hastalis.PNG And Triakis sp. or beali triakis_tanoutensis.jpg Link to comment Share on other sites More sharing options...
Sélacien34 Posted May 19, 2014 Share Posted May 19, 2014 Hi Jess,C. hastalis is present at Sharktooth Hill, about Triakis that's strange, it's so close and i have seen references and many teeth sold or presented for that site ... Well, you say that it's now invalid so we stay with Scyliorhinus sp. and Cephaloscyllium sp.. Must see them, but it's too late for that now here. Current Cephaloscyllium : About the fishes, that's right, i have based my ID on the Miocene french fauna of the south of France, these teeth are so close, I was too confident. My reference stays a good reference with many genus present in America, but then it must be something else indeed. Perhaps it must seek in this case to the side of Carangidae : http://www.sharktoothhill.org/index.cfm?fuseaction=news_full_view&news_id=12 Link to comment Share on other sites More sharing options...
siteseer Posted May 20, 2014 Share Posted May 20, 2014 Just to be clear, I am not saying that it is not Triakis. It is Triakis beali that is not valid. The teeth I've seen from the STH Bonebed look very similar to the modern leopard shark, T. semifasciata. Shouldn't it be semifasciatus so that it agrees with Triakis? I see it around the web as semifasciata. Jess Hi Jess,C. hastalis is present at Sharktooth Hill, about Triakis that's strange, it's so close and i have seen references and many teeth sold or presented for that site ... Well, you say that it's now invalid so we stay with Scyliorhinus sp. and Cephaloscyllium sp.. Must see them, but it's too late for that now here. Current Cephaloscyllium : Cephaloscyllium ventriosum-.PNG About the fishes, that's right, i have based my ID on the Miocene french fauna of the south of France, these teeth are so close, I was too confident. My reference stays a good reference with many genus present in America, but then it must be something else indeed. Perhaps it must seek in this case to the side of Carangidae : Carangidae.jpg http://www.sharktoothhill.org/index.cfm?fuseaction=news_full_view&news_id=12 Link to comment Share on other sites More sharing options...
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