Icriobranchiocarcinus rodas Vega n. sp., is recorded from lower Maastrichtian (Upper Cretaceous) Arroyo Grande Formation near the town of Rodas (Central Cuba). I. sp. represents additional evidence paleobiogeographic affinities between Chiapas (SE Mexico) and Cuba, during Late Cretaceous. The genus Vega, 2018 in et al., was erected type species tzutzu Ocozocoautla Forma-tion (Chiapas). preserve...

one section of the tarbur formation (462 m thickness) located about 5 km southwest of semirom was studied. it consists of carbonate and terrigenous rocks and contains abundant large benthic foraminifera assigned to the late maastrichtian. in the upper maastrichtian, loftusia is very abundant in carbonate sequence of the middle east tethyan realm. loftusia is an important genus for palaeontologi...

The late Campanian-early Maastrichtian site of Lo Hueco (Cuenca, Spain) has provided a set of well-preserved crocodyliform skull and lower jaw remains, which are described here and assigned to a new basal eusuchian taxon, Lohuecosuchus megadontos gen. et sp. nov. The reevaluation of a complete skull from the synchronous site of Fox-Amphoux (Department of Var, France) allows us to define a secon...

Consistent trends towards decreasing body size in the aftermath of mass extinctions--Lilliput effects--imply a predictable response among unitary animals to these events. The occurrence of Lilliput effects has yet to be widely tested in colonial organisms, which are of particular interest as size change may potentially occur at the two hierarchical levels of the colony and the individual zooids...

The specified systematic study of calcareous nannofossils was carried out on successions Shiranish and Aaliji Formations. Four Samples have taken from (Kh-4) well, between (2600-2630) m, Northern Iraq. Twenty-five species were identified. According to the identified taxa, two biostratigraphic biozones determined, oldest youngest: 
 1- Rienhardtites lives Interval Biozone (CC24) Part. 2- Fa...

The Late Cretaceous-Early Paleocene Shiranish and Aliji formations have been studied in three selected wells Jambur Oil Field (Ja-50, Ja-53, Ja-67) Kirkuk, Northeastern Iraq. This study included lithostratigraphy biostratigraphy. Campanian-Maastrichtian Formation consist mainly of thin marly chalky limestone beds overlain by marl beds, with some representing an outer shelf basinal environment, ...

The deposits corresponding to the Upper Cretaceous Neuquén and San Jorge Gulf basins from northern central Patagonia have provided two of most complete sequences terrestrial vertebrate faunas all Gondwanan landmasses. Among carnivorous components, carcharodontosaurid theropods appeared as common elements during Early earliest Late in Patagonia. Although recorded mostly lower Turonian, isolated ...

Phylogenetic relationships among and within major groups of bees are still poorly resolved. The main gap is the identification of the basal branch of bee phylogeny. In this context, more information is needed about the early fossil record of bees. Here, we describe Palaeomacropis eocenicus gen. nov. sp. nov. , discovered in early Eocene amber of Oise (France). It is the oldest record of Melitti...

Benthic foraminiferal assemblages from Maastrichtian strata, Gansserina gansseri-Abathamphalus mayaroensis Planktonic Foraminiferal Zone, of the AbTalkh Formation at Aitamir section (west of the Kopeh-Dagh basin) were investigated in order to evaluate the palaeoenvironmental changes (organic matter flux and bottom-water oxygenation). Maastrichtian faunal assemblages are well preserved and diver...