two hadrosaurid papers on Notebook on Geology

[Ignacio Ruiz <jigruiz@gmail.com>]

Dear Friends of Carnets / Chers Amis des Notebooks,

We come today with another "special issue" on ... hadrosaurid
dinosaurs. It consits of 2 new letters, both in English only.

Find these PRELIMINARY VERSIONS on:

http://paleopolis.rediris.es/cg/uk-index.html (official release August
1st)


Letter 3 [2009]: An additional hadrosaurid specimen (Dinosauria:
Ornithischia) from the marine Maastrichtian deposits of the Maastricht
area, by Eric BUFFETAUT. - Reference: [CG2009_L03], 4 p.

Abstract:  An isolated dinosaur vertebra from the marine deposits of
the Maastrichtian type area, near the city of Maastricht (The
Netherlands), collected during the 19th century and kept in the
palaeontological collection of the Museum fur Naturkunde in Berlin, is
described as a caudal vertebra of a hadrosaurid ornithopod. Although
it cannot be identified with greater accuracy, this specimen is an
addition to the still scanty, but growing, record of non-avian
dinosaurs from the Maastrichtian type area. This record is heavily
dominated by hadrosaurs, which probably reflects a real abundance of
this group of dinosaurs in the late Maastrichtian of Europe.


Letter 2 [2009]: Evidence of predation on the vertebra of a
hadrosaurid dinosaur from the Upper Cretaceous (Campanian) of
Coahuila, Mexico, by Hector E. RIVERA-SYLVA, Eberhard FREY & Jose
Ruben GUZMAN-GUTIERREZ. - Reference: [CG2009_L02], 6 p.

Abstract:  In sediments of the Aguja Formation (Late Cretaceous:
Campanian) at La Salada in northern part of the state of Coahuila,
Mexico, numerous fossils of vertebrates have been discovered including
Hadrosauridae. One hadrosaur vertebra provides evidence of predation
probably by a giant alligator Deinosuchus riograndensis.





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Jose Ignacio Ruiz-Omenaca
Museo del Jurasico de Asturias (MUJA)
E-33328 Colunga, Spain
www.dinoastur.com
www.museojurasicoasturias.com
www.aragosaurus.com
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