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Showing results for tags 'maastrichian'.
Found 5 results
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I found this rock in Austin, TX in Waller Creek next to an exposed outcrop of the Maastrichtian (Late Cretaceous) Austin Chalk. I’m wondering if it’s a mosasaur vertebra or humerus? Several mosasaurs have been found in creeks nearby, and the wavy pattern in the rock reminds me of fossilized bone. I’ve included three photos of the rock that I found in Austin, and a photo from Otero et al. (2016) of a Maastrichtian mosasaur right humerus (scale bar = 50 mm) that looks similar.
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First Articulated Ornithomimid specimens from Scollard Formation
Troodon posted a topic in Documents
We rarely have an opportunity to see published material from ornithomimids especially from the Scollard Formation. This is a great paper to use the illustrations for comparative purposes when trying to ID material from the Lance and Hell Creek Formation Paywalled https://www.tandfonline.com/doi/full/10.1080/02724634.2021.2019754- 1 reply
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- ornithomimus
- struthiomimus
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From the album: Cranky’s album of fossils
A tooth belonging to the Mosasaur prongnathodon Giganteaus-
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- maastrichian
- reptiles
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From the album: Delaware Fossils
A Gryphea vomer bivalve made itself at home atop the internal mold of a tiny Baculites ovatus cephalopod. The whole thing is about 3 cm tall. Found in the Cretaceous spoils sands of the C&D Canal, Delaware -
Sphenodiscus lenticularis Late Cretaceous (Maastrichian) Fox Hills Formation, South Dakota, U.S.A
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- ammonite
- maastrichian
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