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4 new dinosaur papers on Geogaceta



4 new dinosaur papers on Geogaceta, available as free pdf files:
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Boutakiout, M., Ladel, L., Díaz-Martínez, I. & Pérez-Lorente, F. 2010.
Prospecciones paleoicnológicas en el sinclinal de Iouaridène (Alto
Atlas, Marruecos). 2: Parte oriental [Paleoichnological explorations
in the Iouaridène syncline (Hight Atlas. Morocco). 2: East part].
Geogaceta, 47[for 2009], 33-36.

ABSTRACT.In 2007, the dinosaur footprints research group of the
Universities of Rabat and La Rioja began the mapping of the Iouaridène
ichnological sites. The initial problems were the footprints number -
several thousands for some scientits- the ichnotaxonomy, and their
geographical and geological distribution. Our first results (west
Iouaridène area) were published in 2008. In addition to two
ichnotaxons defined here, we have studied: gigantic theropod and
ornithopod footprints; semipantigrade theropod ichnites and the
largest world theropod trackway are new contributions to Iouaridène
dinosaur footprints knowledge. In this work, are demostrated the
following questions: i) the maximun number of footprints in the
Iouaridène sincline is less than 2000; ii) in the east area there is
minor density of sites and the number of footprints that in the west
part; iii) the greatest number of semiplantigrade theropod ichnites;
iv) the fosiliferous levels reduction from 20 to one. Probably, the
four properties geographically related - stratigraphic, number,
density (sites and footprints) and the diversity of semiplantigrade
ichnites - are other singenetic relations.

Key words: Dinosaur footprints, new sites, Iouaridène, Marocco.

http://sociedadgeologica.es/archivos/geogacetas/geo47/art09.pdf
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Pereda Suberbiola, X., Ruiz-Omeñaca, J.I. & Company, J. 2010. Primera
descripción de restos esqueléticos de dinosaurio ornitópodo en la
Formación. Villar del Arzobispo (tránsito Jurásico-Cretácico):
yacimiento de Cerrito del Olmo (Alpuente, Valencia) [First description
of ornithopod dinosaur skeletal remains from the Villar del Arzobispo
Formation (Jurassic-Cretaceous transition): Cerrito del Olmo locality
(Alpuente, Valencia, E Spain)]. Geogaceta, 47[for 2009], 13-16

ABSTRACT.The Villar del Arzobispo Formation (Tithonian-Berriasian) in
Teruel and Valencia provinces (SE Iberian Range) has yielded abundant
skeletal remains of dinosaurs, mainly of sauropods and stegosaurs.
Three vertebrae collected in the locality of Cerrito del Olmo I
(Alpuente, Valencia province), two of them previously referred to the
stegosaurid Dacentrurus armatus, belong in fact to an ornithopod. The
material consists of one cervical and two caudal centra that preserve
the base of the neural arch fused to the centrum. These remains are
here assigned to Ornithopoda indet. on the basis of the combination of
several characters more frequent in ornithopods than in stegosaurs.
This is the first description of ornithopod skeletal remains from the
Villar del Arzobispo Formation.

Key words: Ornithopoda, Villar del Arzobispo Fm.,Tithonian-Berriasian,
vertebrae, Valencia

http://sociedadgeologica.es/archivos/geogacetas/geo47/art04.pdf
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Pérez García, A., Ortega, F. & Gasulla, J.M. 2010. Revisión histórica
y sistemática del primer hallazgo de tetanuros basales (Theropoda) del
Cretácico Inferior de Morella (Castellón) [Historic and systematic
review of the first discovery of basal tetanurans (Theropoda) from the
Lower Cretaceous of Morella (Castellón)]. Geogaceta, 47[for 2009],
21-24.

ABSTRACT. Historic and systematic aspects of a partial left femur
determined as belonging to an undetermined tetanuran theropod are
discussed. Probably, the fossil was collected in the ending of the XIX
century in the Lower Cretaceous sediments of the Morella Formation,
near to the town of Morella (Castellón). The original specimen was
destroyed by a fire in 1932, but some casts and documents are still
housed in the Museo Nacional de Ciencias Naturales in Madrid.

Key words: Theropoda, Tetanurae, Morella, Lower Cretaceous, Royo y Gómez.

http://sociedadgeologica.es/archivos/geogacetas/geo47/art06.pdf
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Ruiz-Omenaca, J.I., Vullo, R., Bernardez, E. & Buscaloni, A.D. 2010.
El primer resto directo de terópodo del Cenomaniense de la Peninsula
Ibérica: el diente de Limanes (Oviedo, Asturias) [The first theropod
skeletal remain from the Iberian Cenomanian: the tooth from Limanes
(Oviedo, Asturias, N Spain)]. Geogaceta, 47[for 2009], 29-32.

ABSTRACT. We describe an isolated tooth of a theropod dinosaur
recovered at the Limanes village, in the vicinity of Oviedo
(Principality of Asturias, north Spain). It comes from an outcrop of
the La Manjoya Formation, possibly lower-middle Cenomanian based on
their foraminiferal content. The tooth can not be identified to
generic of familiar level, so it is only assigned to Theropoda indet.
By its size and serration density it could pertain to a
carcharodontosaurid dinosaur, but it cannot be confirmed due to its
fragmentary condition. This is the first mention of a theropod
dinosaur in the Cretaceous of Asturias and the only theropod skeletal
remain described in the pre-Campanian Late Cretaceous of the Iberian
Peninsula.

Key words: Dinosauria, Theropoda, Upper Cretaceous, La Manjoya
Formation, ?Carcharodontosauridae

http://sociedadgeologica.es/archivos/geogacetas/geo47/art08.pdf



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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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