Demandasaurus, Narambuenatitan, new sauropods (free pdfs)

[bh480@scn.org]

From:  Ben Creisler
bh480@scn.org

In case these new advance online papers have been 
mentioned yet:

Fidel Torcida Fernandez-Baldor, Jose Ignacio Canudo, 
Pedro Huerta, Diego Montero, Xabier Pereda Suberbiola, 
and Leonardo Salgado (2010)
Demandasaurus darwini, a new rebbachisaurid sauropod from 
the Early Cretaceous of the Iberian Peninsula.
Acta Palaeontologica Polonica in press
available online 29 Dec 2010 
doi:10.4202/app.2010.0003
http://www.app.pan.pl/article/item/app20100003.html

A new medium-sized rebbachisaurid sauropod from the 
Castrillo la Reina Formation (Upper Barremian ? Lower 
Aptian) in Burgos Province, Demandasaurus darwini gen. et 
sp. nov., is described. It is known from an incomplete 
but associated skeleton that includes cranial and 
postcranial remains. Demandasaurus darwini gen. et sp. 
nov. presents 9 autapomorphies in the teeth and 
vertebrae. Demandasaurus is the first diplodocoid 
sauropod described from the Cretaceous of the Iberian 
Peninsula. Its inclusion in the Rebbachisauridae is well 
supported by our phylogenetic hypothesis, which situates 
it as a sister group of Nigersaurus from the Aptian of 
Niger, with which it shares various synapomorphies. The 
discovery of Demandasaurus provides further evidence of 
the sporadic use of the Apulian Route by dinosaurs during 
the Early Cretaceous for moving between the south of 
Europe (Laurasia) and the north of Africa (Gondwana).

Leonardo S. Filippi, Rodolfo A. Garcia, and Alberto C. 
Garrido (2010)
A new titanosaur sauropod dinosaur from the Upper 
Cretaceous of North Patagonia, Argentina.
Acta Palaeontologica Polonica in press
available online 29 Dec 2010 
doi:10.4202/app.2010.0019
http://www.app.pan.pl/article/item/app20100019.html

A new sauropod titanosaur from the Upper Cretaceous 
Anacleto Formation is described. Narambuenatitan palomoi 
gen. et sp. nov., is diagnosed by cranial and axial 
autapomorphies. The holotype, which represent a subadult 
individual, consists of the left premaxilla and maxilla, 
braincase, both quadrates, one cervical vertebrae, one 
dorsal vertebra, fragments of cervical and dorsal ribs, 
seventeen caudal vertebrae, caudal transverse processes, 
fragments of haemal arches, left sternal plate, right 
coracoid, left humerus, left ulnae, both pubes, iliac 
pedicel, proximal fragment of right ischia, and an 
incomplete left femur. The phylogenetic analysis 
indicates that Narambuenatitan is a noneutitanosaurian 
lithostrotian, and that it shares with Epachthosaurus a 
neural spine in middle caudal vertebrae which are laminar 
and posteriorly elongated.

Also:
Octavio Mateus, Jesper Milan, Michael Romano, and Martin 
A. Whyte (2010)
New finds of stegosaur tracks from the Upper Jurassic 
Lourinhã Formation, Portugal
Acta Palaeontologica Polonica in press
available online 29 Dec 2010 
doi:10.4202/app.2009.0055
http://www.app.pan.pl/article/item/app20090055.html

Eleven new tracks from the Upper Jurassic of Portugal are 
described and attributed to the stegosaurian ichnogenus 
Deltapodus. One track exhibits exceptionally well-
preserved impressions of skin on the plantar surface, 
showing the stegosaur foot to be covered by closely 
spaced skin tubercles of ca. 6 mm in size. The Deltapodus 
specimens from the Aalenian of UK represent the oldest 
occurrence of stegosaurs and imply an earlier 
cladogenesis than is recognized in the body fossil record.