Jose Montemayor Posted May 15, 2019 Share Posted May 15, 2019 Hi there! This is my first post at Fossil Forum, hope this information could help in getting some help to identify this fossil. It was found at a quarry in Vallecillo, Mexico (northeast part, less than 100 kms from Laredo, Texas). The fossils found here belong to the the Vallecillo member from the Agua Nueva formation, aparently from late Cenomanian to early Turonian. The full length including the separate vertebrae is aproximately 29 inches or 74 centimeters. The longest tooth is aproximately 1.4 centimeters long. I was only able to post a single picture, hope it helps. Link to comment Share on other sites More sharing options...
SUPER BAT Posted May 15, 2019 Share Posted May 15, 2019 Hybodus Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 15, 2019 Share Posted May 15, 2019 Can you try to post another photo in a reply, without the ruler covering the fossil? You should be able to. There is a 4 mb limit to the photo size. You may have to crop or resize your photo. We can't really make a proper ID without seeing the teeth, and any more detail you can get in better photos. 23 minutes ago, SUPER BAT said: Hybodus How did you arrive at this identification? I think you may be a bit premature on that ID. Let's see what other, more detailed photos show first. 2 Tim - VETERAN SHALE SPLITTER 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 More sharing options...
Misha Posted May 15, 2019 Share Posted May 15, 2019 35 minutes ago, SUPER BAT said: Hybodus I don't think this is what that is Link to comment Share on other sites More sharing options...
Carl Posted May 15, 2019 Share Posted May 15, 2019 56 minutes ago, SUPER BAT said: Hybodus How are you deciding that? Link to comment Share on other sites More sharing options...
Brett Breakin' Rocks Posted May 15, 2019 Share Posted May 15, 2019 1 minute ago, Carl said: How are you deciding that? With .. youthful abandon ..... B 3 Link to comment Share on other sites More sharing options...
Jose Montemayor Posted May 15, 2019 Author Share Posted May 15, 2019 Does this pinture work? 2 Link to comment Share on other sites More sharing options...
Jose Montemayor Posted May 15, 2019 Author Share Posted May 15, 2019 Link to comment Share on other sites More sharing options...
Jose Montemayor Posted May 15, 2019 Author Share Posted May 15, 2019 Link to comment Share on other sites More sharing options...
Macrophyseter Posted May 15, 2019 Share Posted May 15, 2019 It could be some species of catshark (Scyliorhinidae). Gonzalez-Rodriguez et al. (2013) reports that body fossils of scyliorhinids with vertebra and soft tissue preserved are known from Vallecillo. 3 If you're a fossil nut from Palos Verdes, San Pedro, Redondo Beach, or Torrance, feel free to shoot me a PM! Link to comment Share on other sites More sharing options...
Darktooth Posted May 15, 2019 Share Posted May 15, 2019 This is pretty darn cool! Wouldnt mind having that in my collection! I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
caldigger Posted May 15, 2019 Share Posted May 15, 2019 Whatever your spieces turns out to be, it is a magnificent specimen. Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 15, 2019 Share Posted May 15, 2019 @Kurt Komoda @Al Dente @MarcoSr Cropped and contrasted: 4 Tim - VETERAN SHALE SPLITTER 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 More sharing options...
Tidgy's Dad Posted May 15, 2019 Share Posted May 15, 2019 Excellent find! I've no idea what it could be but it's a beautiful fossil. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Al Dente Posted May 15, 2019 Share Posted May 15, 2019 I can only guess. Almost looks like a very young Cretoxyrhina based on the teeth. You might want to contact Kenshu Shimada. He has published on material from the area and he knows his sharks. 5 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted May 15, 2019 Share Posted May 15, 2019 Beautiful specimen, regardless of what it is. I'm drooling. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Jose Montemayor Posted May 15, 2019 Author Share Posted May 15, 2019 2 hours ago, Macrophyseter said: It could be some species of catshark (Scyliorhinidae). Gonzalez-Rodriguez et al. (2013) reports that body fossils of scyliorhinids with vertebra and soft tissue preserved are known from Vallecillo. Thanks a lot. I will look for that bibliography. Hope I can find some useful information. Link to comment Share on other sites More sharing options...
Jose Montemayor Posted May 15, 2019 Author Share Posted May 15, 2019 1 hour ago, Al Dente said: I can only guess. Almost looks like a very young Cretoxyrhina based on the teeth. You might want to contact Kenshu Shimada. He has published on material from the area and he knows his sharks. Thank you very much. I´ll look for his papers to see if I can find something. Link to comment Share on other sites More sharing options...
MrR Posted May 16, 2019 Share Posted May 16, 2019 Really spectacular fossil. Congratulations. Link to comment Share on other sites More sharing options...
MarcoSr Posted May 16, 2019 Share Posted May 16, 2019 Really nice fossil. I agree with Eric. Based upon what I can see of the teeth, I would also consider Cretoxyrhina. Marco Sr. 2 "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...
Jose Montemayor Posted May 16, 2019 Author Share Posted May 16, 2019 1 hour ago, MrR said: Really spectacular fossil. Congratulations. Thank you! Link to comment Share on other sites More sharing options...
Jose Montemayor Posted May 16, 2019 Author Share Posted May 16, 2019 30 minutes ago, MarcoSr said: Really nice fossil. I agree with Eric. Based upon what I can see of the teeth, I would also consider Cretoxyrhina. Marco Sr. Thanks Marco. I’ll look up more information about it. Link to comment Share on other sites More sharing options...
MarcoSr Posted May 16, 2019 Share Posted May 16, 2019 9 hours ago, Jose Montemayor said: Thanks Marco. I’ll look up more information about it. Below is a Cretoxyrhina dentition from Welton and Farish 1993. Marco Sr. 3 "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...
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