We analysed field-collected quantitative data of benthic marine molluscs across the Cretaceous-Palaeogene boundary in Patagonia to identify patterns and processes of biodiversity reconstruction after the end-Cretaceous mass extinction. We contrast diversity dynamics from nearshore environments with those from offshore environments. In both settings, Early Palaeogene (Danian) assemblages are str...

Morphna paleo sp. n., the earliest winged representative of any living cockroach genus and the earliest representative of the family Blaberidae, is described from the Danian Arkhara-Boguchan coal mine in the Amur River region (Russian Far East). The branched Sc and A suggest Ectobiidae (=Blattellidae) probably is not the ancestral family because Blaberidae were derived directly from the extinct...

Spherules in sediments across the Cretaceous-Tertiary (K/T) transition in Central America and the Caribbean are commonly interpreted as ejecta from the Chicxulub impact on Yucatan. Their stratigraphic ages, however, are variable spanning from the late Maastrichtian to the early Danian. Figure 1. Locations of spherule-bearing K/T boundary sections in Central America, and the Caribbean. In northe...

The biostratigraphy of the Outer Carpathians is based mainly on ranges agglutinated foraminifera. Species acmes provide opportunity to enhance and support existing biozonations. Assemblages foraminifera from Campanian Eocene various tectonic-structural units were analyzed in terms their qualitative quantitative occurrence. In this stratigraphic interval, 19 species display significantly increas...

Leptomaria antipodensis and Leptomaria hickmanae are described from the Upper Cretaceous [Maastrichtian] Lopez de Bertodano Formation, Seymour Island, and represent the first Mesozoic records of the family Pleurotomariidae from Antarctica. Leptomaria stillwelli, L. seymourensis, Conotomaria sobralensis and C. bayeri, from the Paleocene [Danian], Sobral Formation, Seymour Island, are described a...

Five new ostracod species belonging to the subfamily Trachyleberidinae have been described. They are Paragrenocythere monilis and Peloriops levisulcata from the Maastrichtian of Iraq; Oertliella petraensis from the early Palaeocene (middle – late Danian) of Jordan; Reticulina syriaensis from the Palaeocene of Syria and Reticulina ninurta from the middle – late Eocene of Iraq.

The Late Cretaceous–Early Paleogene (K–Pg) was a critical period of transition in geological time. This encompassed short-term climatic fluctuations on global scale, changes ocean circulation, and sudden large extinctions marine terrestrial organisms. In the study area, located mid to low latitudes, Cretaceous Early were very tectonically active due positioning site close collision zone two con...