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4 new dinosaur papers on Geogaceta

Four new dinosaur papers in the last number of Geogaceta (paper
published in December 2012), are now available as free pdf files (all
in Spanish):

Boutakiout, M., Nouri, J., Ladel, L., Diaz-Martinez, I. &
Perez-Lorente, F. 2012. Anomalous content of semiplantigrade theropod
footprints in the Oumzawrou (36IGR) outcrop of the Moroccan Atlas.
Geogaceta, 52, 267-270.


ABSTRACT: We describe for the first time a dinosaur tracksite
(Oumzawrou or 36IGR) which was known for forty years. It is the second
in the number of prints of all 43 sites discovered in the Iouaridene
syncline (IGR) In 36IGR concur several particularities that make it
remarkable, in relation to others of IGR: a) the footprints are only
on a single level, as opposite to the other tracksites analysed in the
syncline; b) the number of semiplantigrade footprints and trackways is
relatively very large; c) there are no trackways with E-W direction.
The concentration and number of semiplantigrade footprins is an
exceptional fact both in IGR and in similar outcrops in the world.
According to the stratigraphic, ichnologic and palaeoenvironmental
conditions of the tracksite is postulated that a relation must
restrict the coexistence of ichnotypes and the behaviour of dinosaurs.

Key-words: Semiplantigrade theropod, footprints, Upper Jurassic, Morocco.

Ruiz-Omenaca, J.I., Pinuela, L. & Garcia-Ramos, J.C. 2012. First
description of theropod dinosaur teeth in the Terenes Formation
(Kimmeridgian), Asturias, north Spain. Geogaceta, 52, 271-274.


ABSTRACT: Three theropod teeth from the outcrops of the unnamed lower
member of the Terenes Formation (Kimmeridgian) in the sea cliffs of
the village of Terenes (Ribadesella municipality) in the Principality
of Asturias, northern Spain, are described. The teeth are housed in
the Museo del Jurasico de Asturias (MUJA, Jurassic Museum of
Asturias). They are assigned to Theropoda indet (MUJA-0813) and
Allosauroidea? indet. (MUJA-0757 and MUJA-3680). They represent the
first theropod skeletal remains in the Terenes Formation, in which
theropod footprints are relatively frequent.

Key-words: Upper Jurassic, Dinosauria, Theropoda, Allosauroidea,
skeletal remains.


Cobos, A., Royo-Torres, R. & Alcala, L. 2012. Ornithopod postcranial
remains from the Lower Cretaceous of El Castellar (Penagolosa
Sub-basin, Teruel). Geogaceta, 52, 275-278.


ABSTRACT: Forty-eight dinosaur sites have been documented in El
Castellar (Teruel). These sites appear in facies ranging from the
Tithonian to the Aptian (Villar del Arzobispo Fm., El Castellar Fm.,
Camarillas Fm. and Forcall Fm.). One of the lithostratigraphic units
containing more sites is Areniscas y Calizas de El Castellar Fm. (late
Hauterivian- early Barremian). Several isolated post-cranial elements
have been recovered in this Formation: three dorsal centra and a
proximal fragment of a fibula. They all belong to an ornithopod,
probably an hadrosauriform, and they represent the first bones from
these vertebrates that have been described in this Formation in the
Penagolosa Sub-basin (Maestrazgo Basin). In the Lower Cretaceous of
Teruel province, postcranial remains from this kind of dinosaurs have
been mainly found in this unit, and also the overlying one (Camarillas
Fm.) but in localities belonging to Galve Sub-basin.

Key-words: Hadrosauriformes, Hauterivian-Barremian, El Castellar
Formation, Teruel.

Cobos, A. & Gasco, F. 2012. Presence of the ichnogenus Iguanodontipus
in the Lower Cretaceous of the Teruel province (Spain). Geogaceta, 52,


ABSTRACT: Until now, the presence of iguanodontoids in the Lower
Cretaceous of the Teruel province has been restricted to fossil bones
and teeth. New tracks have been found in the Areniscas de Camarillas
Formation (lower Barremian) in Cabra de Mora and El Castellar (both
villages located in Teruel province, Maestrazgo basin, Penagolosa
Sub-basin). These new tracks are assigned to the ichnogenus
Iguanodontipus, and their presence helps to complete the record of
this kind of tracks in the Iberian Peninsula. Moreover, these tracks
show that iguanodontoids were part of these fluvial continental
ecosystems of this stratigraphic unit. It is quite remarkable the size
of these ornithopods illustrated by track CPT-4399, measuring 50 cm of
both length and width. This footprint has been preserved as convex

Key-words: Barremian, Camarillas Formation, Iguanodontipus,
Iguanodontoids, Teruel.

Jose Ignacio Ruiz-Omenaca
Museo del Jurasico de Asturias (MUJA)
E-33328 Colunga, Spain