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Petrobrasaurus, new Argentine titanosaur
From: Ben Creisler
I don't recall seeing this new titanosaur mentioned on
the DML yet, although the name has appeared as a nomen
nudum in some places. It's scheduled to be officially
published in March 2011. The advance pdf is free at:
L. FILIPPI, J.I. CANUDO, J.L. SALGADO, A. GARRIDO, R.
GARCIA, I. CERDA, and A. OTERO (2011)
A new sauropod titanosaur from the Plottier Formation
(Upper Cretaceous) of Patagonia (Argentina).
Geologica Acta 9 (1): 1-23 (March 2011)
Available online at www.geologica-acta.com
This paper presents a new titanosaur sauropod,
collected from levels of reddish clays assigned to
the Plottier Formation (Coniacian-Santonian). The
holotype of Petrobrasaurus puestohernandezi gen.
et. sp. nov. is a disarticulated specimen, from
which teeth, cervical, dorsal and caudal
vertebrae, sternal plates, metacarpals, femora, tibia,
a fragment of ilium, pubis, haemal arches, and cervical
and dorsal ribs have been preserved. This period is of
particular interest because it saw the defnitive
isolation of the vertebrate faunas of Patagonia, with the
separation of South America from the rest of Gondwana, a
process that had begun during the Early Cretaceous.
Although some of the characters observed in
Petrobrasaurus gen. nov. suggest a relationship
with the South American clade Lognkosauria, this new
sauropod is regarded as Titanosauria incertae sedis until
a more profound analysis of the Titanosauria that in
which it is included is undertaken.