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RE: Drusilasaura, new titanosaur from Argentina



Anyone want to take a crack at a size estimate?  Most of the elements only have 
scale bars to go on, but the scale bar for the scapula (fig. 7) is nowhere near 
correct: the length is mentioned in the text as 143 cm, but the scale bar in 
the figure makes it look over 240 cm long!  

----------------------------------------
> Date: Sat, 7 May 2011 01:10:52 -0400
> From: bh480@scn.org
> To: dinosaur@usc.edu
> Subject: Drusilasaura, new titanosaur from Argentina
>
> From: Ben Creisler
> bh480@scn.org
>
>
> In new issue of Revista Brasileira de Paleontologia:
>
> César Navarrete, Gabriel Casal & Rubén Martínez (2011)
> Drusilasaura deseadensis gen. et sp. nov., a new titanosaur
> (Dinosauria-Sauropoda), of the Bajo Barreal Formation, Upper Cretaceous of
> north of Santa Cruz, Argentina.
> Revista Brasileira de Paleontologia 14(1):1-14, Janeiro/Abril 2011
> doi:10.4072/rbp.2011.1.01
>
> free pdf at:
> http://www.sbpbrasil.org/revista/edicoes/14_1/Artigo%201%20-%20Navarret%20et
> %20al.pdf
>
> A new titanosaurid from Patagonia, Argentina, is here described,
> Drusilasaura deseadensis gen. et sp. nov., the materials include four
> dorsal vertebrae, one sacral vertebra, six caudal vertebrae, left scapula,
> dorsal rib fragments, two haemapophyses and indeterminate fragments. The
> material comes from the Upper Member of the Bajo Barreal
> Formation(Cenomanian-Turonian), exposed in the María Aike Ranch, Santa Cruz
> Province, Patagonia, Argentina. The taxon showsthe following character
> association: (i) presence in the anterior dorsal vertebrae, of two robust
> spinodiapophyseal laminae, one anterior and other posterior, which delimit
> an elongate and deep supradiapophyseal cavity; (ii) presence in the
> anterior dorsal vertebra of a small circumneural lamina surrounding the
> neural canal in posterior view; (iii) the last sacral vertebra with
> postspinal lamina expanded toward the neural spine apex; (iv) prespinal
> laminae, at least until 5º? caudal vertebra, expanded toward the neural
> spine apex; (v) existence in the anterior caudal vertebrae of
> tuberopostzygapophyseal laminae; (vi) presence of ventral foramina, at
> least until the 4º? caudal vertebrae; and (vii) prezygapophyseal tuberosity
> jointed theprespinal lamina until the 4º? caudal vertebrae. The presence of
> a synapomorfic character of the clade Lognkosauria suggests the probable
> inclusion of the Drusilasaura deseadensis gen. et sp. nov. within the
> clade, in tandem with Mendozasaurus neguyelap, Futalognkosaurus dukei and
> probably Puertasaurus reuili.
>
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