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Showing results for tags 'cretoxyrhina mantelli'.
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From the album: Eagle Ford Group
Cretoxyrhina mantelli, Travis Co. Cenomanian, Cretaceous Oct, 2022-
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From the album: Eagle Ford Group
Cretoxyrhina mantelli, Denton Co. Turonian, Cretaceous Jan, 2023 -
Identification Cretoxyrhina teeth are simple in design, having a triangular crown with smooth enamel and non-serrate edges, a thin lingual dental band, rounded root lobes, a lingual root protuberance, and no nutrient groove.1,2 Comments This tooth is from a latero-posterior position, given the crown's distal curvature. The chalk preserved this tooth very well - the enamel retains a sharp gloss comparable to that on modern sharks' teeth. References 1. Bourdon, Jim, and Michael J. Everhart. “Analysis of an Associated Cretoxyrhina Mantelli Dentition from the Late Cretaceo
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I have recently found this fossil in north western Kansas (graham co.) I don't know if this is a shark vertebrae/cartilage disk or just a basic fish vertebrae. (Don't mind my bad prep work. I just started peeping fossils recently.)
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Eagle Ford Hunt With a Fellow FF Member! Loads of Shark Teeth With Some Unexpected Micro Surprises!
EPIKLULSXDDDDD posted a topic in Fossil Hunting Trips
A couple of weeks ago, @Jackito, his son, and I took a trip out to one of his favorite Eagle Ford sites. For those of you who are familiar with Carter's posts, this was once the famed location of the so-called "giving rock", so the bar was set high for the day. I've come across some of Austin's eagle ford material in the past, but it was always only the leftovers of what had been washed through miles of rushing creek water. This was my first time getting to poke through the source material, so I was eager to see what could be found. The water was low and the temperature mild. I was thankful I- 22 replies
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Cretaceous shark teeth I found in Grayson County, TX
Fatigued_Fossil_Hunter posted a topic in Fossil ID
Eagle Ford Group, Post Oak Creek, Sherman, TX, USA I'm curious to know the identity of these shark teeth so help from experienced fossil hunters would be much appreciated!- 2 replies
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- cretodus crassidens
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From the album: Sharks
A gorgeous tooth from one of my favorite sharks! The enamel isn't polished - the chalk preserves its shine extremely well - it's as shiny as when it fell out of the animal's mouth!-
- cretaceous
- smoky hill chalk
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From the album: Sharks
A beautiful tooth from one of my favorite sharks. This one is extra special because of the self-inflicted bite mark - a gash seen on the left in lingual view. Apparently their bite was strong enough to cut their own teeth!-
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From the album: Sharks
One of my favorites - the "ginsu" shark. This one was found at the DFW airport in the 80's.-
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From the album: Sharks
Nearly flawless lateral "ginsu" from the Smoky Hill Chalk of Kansas, USA.- 1 comment
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From the album: Sharks
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From the album: Post Oak Creek
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- cretoxyrhina symphyseal
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From the album: Sharks
Cretoxyrhina mantelli Ginsu shark Niobrara Fm., Gove Co., KS (leftmost 2 teeth) Eagle Ford Group, Sherman, TX (largest tooth) Eagle Ford Group, Dallas, TX (rightmost 2 teeth) A collection of teeth from a formidable Late Cretaceous lamniform shark. This species competed with other sharks and marine reptiles in the Western Interior Seaway ~ 90 Ma. It likely filled a similar niche that the Great White Shark does today. The ginsu was on average larger than the Great White. Oh, it also ate dinosaurs. -
From the album: Sharks
Cretoxyrhina mantelli Ginsu shark Eagle Ford Group, Dallas, TX Found at the DFW airport in the 80's, this anterior tooth shows some nice coloration.-
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Identification: ginsu teeth have broad lingual dental bands, rounded root lobes, a strong lingual protuberance in the roots of anterior teeth, smooth crown faces, and no nutrient groove. Notes: Has damage on the lingual side, perhaps a self-inflicted gash as the tooth fell out of the mouth. Otherwise, a perfect tooth with a very sharp point.
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- niobrara formation
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From the album: Sharks
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From the album: Sharks
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From the album: Sharks
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From the album: Sharks
Closeup of a C. mantelli tooth with unusual wear. I suspect it could be from a tooth in the opposing jaw, or that it may have been bitten in the process of falling out of the mouth during feeding.-
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- shark tooth wear
- shark tooth
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From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Monroe County, Mississippi.-
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From the album: Cretaceous Shark Teeth
Cretoxyrhina mantelli from Monroe County, Mississippi.-
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From the album: Cretaceous Shark Teeth
Eagle Ford Group Cretoxyrhina from Texas.-
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From the album: Cretaceous Shark Teeth
Eagle Ford Group Cretoxyrhina from Texas.-
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From the album: Cretaceous Shark Teeth
Beautiful and very small, cusped Cretoxyrhina mantelli from Ryazan Region of Russia. Cenomanian in age.-
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- cretaceous
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From the album: Cretaceous Shark Teeth
Beautiful and very small, cusped Cretoxyrhina mantelli from Ryazan Region of Russia. Cenomanian in age.-
- shark tooth
- cretaceous
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