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handle: 10261/5726
Se estudian tres formas de decápodos pertenecientes a los infraórdenes Caridea y Astacidea. Se describe y figura un nuevo género (Delclosia), una nueva especie (Delclosia martinelli), y se comentan y figuran dos especies ya conocidas (Delclosia roselli y Pseudastacus llopisi). Los fósiles estudiados proceden de los yacimientos de calizas litográficas de la Pedrera de Meiá, El Reguer, La Cabrua (Montsec de Rúbies, Lleida) y de Las Hoyas (La Cierva, Cuenca). Estos yacimientos constituyen en su totalidad el registro de calizas litográficas en el Cretácico inferior español. La excepcional conservación del material permite realizar observaciones tafonómicas y paleoecológicas que indican: un medio lacustre de fondo anóxico tranquilo, más unas condiciones de enterramiento rápido con una diagénesis muy temprana.
Three species of decapoda crustacean have been studied which belong to the Astacidea infraorder and the Caridea infraorder. A new genus (Delclosia) and a new specie (Delclosia martinelli) are defined and illustrated. On the other hand two old species (Delclosia roselli) y Pseudastacus llopisi) are commentated and illustrated. The sample studied fossils belongs to the overalí lithographic limestones from the Lower Cretaceous of Spain: the outcrops of La Pedrera de Meiá, El Reguer and La Cabma (Montsec de Rúbies, Lleida) and the outcrop of Las Hoyas (La Cierva, Cuenca). The exceptional preservation of the forms gives information about their taphonomy and paleoecology which indicate: a quiet and anoxic lacustrine bottom with a quick burial and a very early diagenesis.
CICYT proyecto de investigación PB-88-0174
Peer reviewed
Decápodos, nov. gen nov. sp, Paleoecología, Spain, Calizas litográficas, Decapoda, España, Lower Cretaceous, Cretácico Inferior, nov. genus nov. sp., Lithographic limestones, Paleoecology
Decápodos, nov. gen nov. sp, Paleoecología, Spain, Calizas litográficas, Decapoda, España, Lower Cretaceous, Cretácico Inferior, nov. genus nov. sp., Lithographic limestones, Paleoecology
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