Carson Posted March 7, 2017 Share Posted March 7, 2017 I believe this is a partial denticle. Does anyone know what shark or ray it would have belonged to? It was found in a Late Maastrichtian clay in Arkansas. Link to comment Share on other sites More sharing options...
ynot Posted March 7, 2017 Share Posted March 7, 2017 Looks like a dentical to Me, but other than possible ray I do not think You will be able to get an ID on it. Tony Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 7, 2017 Share Posted March 7, 2017 @Al Dente @MarcoSr 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...
Troodon Posted March 7, 2017 Share Posted March 7, 2017 Same age as the Hell Creek this one is the one of the most common in that fauna Myledaphus sp. denticle may be the same. Link to comment Share on other sites More sharing options...
Al Dente Posted March 7, 2017 Share Posted March 7, 2017 My first guess would be some type of dermal denticle, but I've never seen one like this. Second guess would be from a bony fish. They sometimes have ornamentation on their scales and bones of the skull. What does the bottom look like? Myledaphus is a fresh water ray and hasn't been found in the Southern states but there are related rays that are found there. Link to comment Share on other sites More sharing options...
Plax Posted March 7, 2017 Share Posted March 7, 2017 I'm with Al. Frag of Atractosteus scale? (just guessing here of course) Link to comment Share on other sites More sharing options...
Carson Posted March 7, 2017 Author Share Posted March 7, 2017 29 minutes ago, Al Dente said: My first guess would be some type of dermal denticle, but I've never seen one like this. Second guess would be from a bony fish. They sometimes have ornamentation on their scales and bones of the skull. What does the bottom look like? Myledaphus is a fresh water ray and hasn't been found in the Southern states but there are related rays that are found there. Here is the the under side. Link to comment Share on other sites More sharing options...
Plax Posted March 7, 2017 Share Posted March 7, 2017 Check out these pubs if you don't already have them. J. Paleont., 80(4), 2006, pp. 700–716 Copyright q 2006, The Paleontological Society 0022-3360/06/0080-700$03.00 CHONDRICHTHYANS FROM THE ARKADELPHIA FORMATION (UPPER CRETACEOUS: UPPER MAASTRICHTIAN) OF HOT SPRING COUNTY, ARKANSAS MARTIN A. BECKER,1 JOHN A. CHAMBERLAIN JR.,2 AND GEORGE E. WOLF3 Journal of Vertebrate Paleontology 30(4):1019–1036, July 2010 ©2010 by the Society of Vertebrate Paleontology ARTICLE OSTEICHTHYANS FROM AN ARKADELPHIA FORMATION–MIDWAY GROUP LAG DEPOSIT Link to comment Share on other sites More sharing options...
Carson Posted March 7, 2017 Author Share Posted March 7, 2017 No other freshwater fish material has been found. I am collecting a similar fauna as Case and Cappetta (1997) in Texas. Link to comment Share on other sites More sharing options...
MarcoSr Posted March 8, 2017 Share Posted March 8, 2017 The specimen doesn't match any dermal denticle or fish scale that I'm familiar with. However it looks more like a fish scale to me. 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...
Plax Posted March 8, 2017 Share Posted March 8, 2017 am thinking a frag of "D" Pages from Arkadelphia.pdf Link to comment Share on other sites More sharing options...
Carson Posted March 9, 2017 Author Share Posted March 9, 2017 I appreciate everyone's input. Link to comment Share on other sites More sharing options...
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