Abstract Findings of ammonoid soft tissues are extremely rare compared to the rich fossil record conchs ranging from Late Devonian Cretaceous/Paleogene boundary. Here, we apply computed-tomography approach detect tissue remains in well-preserved fossils Early Cretaceous (early Albian) NE-Germany Proleymeriella . The ammonites were found glauconitic–phosphatic sandstone boulders. Analyses high-r...

Jurassic and Lower Cretaceous successions of the Manin Unit Central Western Carpathians are exposed in Butkov Quarry Middle Vah Region, Slovakia. A significant part macrofauna belonging to neocomitid ammonites, formerly classified under genus Teschenites Thieuloy, 1971, occurs deposits spanning Valanginian/Hauterivian boundary. The original definition was accompanied by uncertainties taxonomic ...

The present study is a contribution to the lithostratigraphy of Middle Jurassic strata in area Zimevitsa Plateau (West Balkan Mts, West Bulgaria). Based on its lithological and regional properties, Dobravitsa Member distinguished from surrounding rocks Etropole Formation. new member consists alternating shales, siltstones fine-grained sandstones. It also contains abundant siderite calcite concr...

The stratigraphy of the upper Fredericksburg and lower Washita groups northern Texas southern Oklahoma is described, biostratigraphical correlation within region, further afield, using microcrinoids, ammonites, planktonic foraminiferans inoceramid bivalves summarised. taxonomy roveacrind microcrinoids revised by senior author, a new genus, Peckicrinus , with type species Poecilocrinus porcatus ...

During the recent field research on the Tirgan Formation in the west of Kopet-Dagh sedimentary basin, ammonite assemblages were obtained from the carbonate strata of this formation. This new finding is important for stratigraphical purpose. In this research, 3 genera belong to Heteroceras, Deshayesites and Cheloniceras? as well as one uncertain genus belongs to Turkmeniceras are determined. The...

Se reconstruyen las variaciones de facies y la configuracion paleogeográfica Cuenca Catalana durante el Jurásico Medio, a partir los datos obtenidos en afloramientos sondeos. propone un nuevo sistema unidades litoestratigráficas, váli­do para Catalana, se analizan sus equivalencias con identificadas Cordillera lbérica Mallor­ca. Un fallas arqueadas, trazado lístrico sentido descendente hacia Me...