scholarly journals The Appendicular Skeleton ofNeuquensaurus, a Late Cretaceous Saltasaurine Sauropod from Patagonia, Argentina

2010 ◽  
Vol 55 (3) ◽  
pp. 399-426 ◽  
Author(s):  
Alejandro Otero
Keyword(s):  
Late Cretaceous ◽  
Appendicular Skeleton

The skull and appendicular skeleton of Gryposaurus latidens, a saurolophine hadrosaurid (Dinosauria: Ornithopoda) from the early Campanian (Cretaceous) of Montana, USA

2012 ◽  
Vol 49 (3) ◽  
pp. 510-532 ◽  
Author(s):  
Albert Prieto-Márquez
Keyword(s):  
Late Cretaceous ◽  
Posterior Margin ◽  
Proximal Region ◽  
The Other ◽  
Sister Taxon ◽  
Width Ratio ◽  
Appendicular Skeleton ◽  
Median Carina ◽  
Previous Hypothesis ◽  
Dentary Tooth

The osteology of the holotype and referred specimens of the saurolophine hadrosaurid, Gryposaurus latidens , from the lower Two Medicine Formation of Montana (USA), is described in detail. With an estimated early Campanian (Late Cretaceous) age, this dinosaur is one of the oldest known hadrosaurids. Gryposaurus latidens shows several autapomorphies, including dentary tooth crowns, with an apicobasal length/mesiodistal width ratio of 1.7–2.2, a single median carina, and large marginal denticles in sections of the dental battery; deep and oval depression on the posteroventral premaxillary surface; and, in the context of Hadrosauridae, a shallow lacrimal process of the rostral process of the jugal. Furthermore, G. latidens differs from G. notabilis and G. monumentensis in having a broadly arcuate anterolateral oral margin of the premaxilla, a posterior margin of the narial fenestra that is wider than the dorsoventral depth of the proximal region of the narial bar, with a nasal crest that rises above the level of the frontals (in adults) and is located above the posterior margin of the narial fenestra, and wide and shallow posteroventral margin of the rostral process of the jugal, among other characters. This study confirmed a previous hypothesis supporting G. latidens as the sister taxon to a clade composed of the other species of Gryposaurus .

scholarly journals Protostegid marine turtle remains from the Cenomanian (Late Cretaceous) of the Kassenberg (Mülheim an der Ruhr, Western Germany)

2017 ◽  
Author(s):  
Sven Sachs
Keyword(s):  
Late Cretaceous ◽  
Carapace Length ◽  
Marine Turtle ◽  
Appendicular Skeleton ◽  
Postcranial Remains ◽  
Western Germany

Postcranial remains of protostegid turtles from the lowermost Cenomanian of Mülheim an der Ruhr (Western Germany) are described. The material includes fragments from the carapace and appendicular skeleton of a taxon with a medium carapace length of approximately 20-30 cm. The turtle remains supplement the record of this group from the Cenomanian of Germany and the fossil fauna of the Kassenberg.

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