Resumen: El estudio y análisis paleontológico y sedimentológico de los materiales carbonatados del Cámbrico Inferior de la Sierra de Córdoba, en las proximidades de Alcolea (Córdoba) ha permitido reconocer la presencia de montículos de calcimicrobios y un buen número de taxones de arqueociatos formando parte de estas bioconstrucciones u otro tipo de facies. En este trabajo se incluyen los datos obtenidos
del estudio taxonómico, bioestratigráfico y paleobiogeográfico relaciotíado con los arqueociatos encontrados, así como el análisis estratigráfico y sedimentológico de los depósitos estudiados.
[ABSTRACT]
A palaeontological and sedimentologic study and analysis of the carbonate beds from the Lower Cambrian of Sierra de Córdoba, near Alcolea (Córdoba), have allowed us to recognize the presence of calciniicrobial mounds witb several taxa of archaeocyaths. In this work we include the resulis obtained trom taxonomic, biostratigrapbic and
palaeobiogeographic siudies related to these archaeocyaths, as well as the infonnation gasbered from dic stratigraphic and sedimentologic analysis of the rocks.
Palabras clave: Zona dc Ossa Morena, Cámbrico interior, Ovetiense Inferior, Arqueociatos, Montículos, Sierra de Córdoba, España, Ossa Morena Zone, Lower Cambrian, Lower Ovetian, Archaeocyaths,
Mounds, Sierra de Córdoba, Spain
Resumen: Six new theropod teeth recovered trom the Blasi 1-3 sites (Upper Maastrichtian) in Arén (Huesca
province, Spain) are described and added to the twenty six teeth already known from these and
other five localities of Late Campanian-Early Maastrichtian age from the Arén and Tremp formations
(Figuero1a 2, Fontllonga 6, L'Abeller, Montrebei and
Vicari 4, Lleida province). Eleven theropod
teeth morphotypes are recognised: one belonging to a big size theropod of indeterminate
family (Theropoda indet.), one small Coelurosauria indet. with unserrated teeth, the enigmatic
Euronychodon sp, and eight morphotypes of cf. Dromaesauridae indet. with different denticle
morphology and serration density (which would represent four five different taxa). The tooth previously
described in the Upper Campanian of Lleida as "Richardoestesia Like" could also be assigned
to cf. Dromaeosauridae indet. Theropod diversity in our sites is apparently similar to that of the
rest of Europe, and increases through the Campanian-Maastrichtian transition, although our small
samples is biased towards the youngest sites.
