Stephanosaurus
Ceratosauria, Chordate, Reptile
978-613-9-23564-3
6139235642
96
2012-04-29
34.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Stephanosaurus is a dubious genus of dinosaur, with a complicated taxonomic history. In 1902, Lawrence Lambe named a new set of hadrosaurid limb material and other bones (originally GSC 419) from Alberta as Trachodon marginatus. Paleontologists began finding better remains of hadrosaurids from the same rocks in the 1910s, in what is now known as the late Campanian-age () Dinosaur Park Formation. Lambe assigned two new skulls to T. marginatus, and based on the new information, coined the genus Stephanosaurus for the species in 1914. Lambe retained the original species marginatus, so the of Stephanosaurus was the original, scrappy limb bones and crushed skull fragments, not the two new skulls. However, the limb bones and skull fragments could not be reliably said to come from the same animal as the complete skulls, or differentiated from other hadrosaurs. Because there was very little to associate the complete skulls with the scrappy earlier marginatus material, in 1923 William Parks proposed a new genus and species for the skulls, with both generic and specific names honoring Lambe: Lambeosaurus lambei ( NMC 2869, originally GSC 2869).
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Paleontología
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