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Showing results for tags 'ungual'.
Found 5 results
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From the album Dinosaurs and Reptiles
Saurolophinae? (Saurolophus osborni?) -
The smallest biggest theropod dinosaur: a tiny pedal ungual of a juvenile Spinosaurus from the Cretaceous of Morocco https://peerj.com/articles/4785/ Abstract We describe a nearly complete pedal ungual phalanx, discovered in the Kem Kem Beds (Cenomanian) of Tafilalt region, south-eastern Morocco. The bone is symmetric, pointed, low, elongate, and almost flat ventrally in lateral aspect. This peculiar morphology allows to refer the specimen to the smallest known individual of the genus Spinosaurus. The bone belongs to an early juvenile individual and it is proportionally identical to the ungual of the third digit of a large partial skeleton recently found, suggesting an isometric growth for this part of the pes and the retention of peculiar locomotor adaptations—such as traversing soft substrates or paddling—during the entire lifespan.
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lautenschlraptherop20140497.full.pdf
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Collected recently from Bouldnor on the Isle of Wight. It is about 33 million years old (earliest Oligocene). Fossils of turtles, a small alligatorid (Diplocynodon) and land mammals (most commonly anthracotheres) are the usual finds. This is the first ungual i have ever found from this location, and i am having trouble finding images of other examples to compare with. It measures 18mm long. I first thought crocodile when i collected it, but i would like other opinions. I'm now tossing up between mammalian and crocodilian. I understand going further than that will probably not be possible. Cheers!
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From the album BONES
(This image is best viewed by clicking on the "options" button on the upper right of this page => "view all sizes" => "large".)© ©Harry Pristis 2015
