Showing papers in "Cretaceous Research in 2013"

TL;DR: The most comprehensive fossil record of Cretaceous theropods from Gondwana, consisting of 31 nominal species belonging to singleton taxa and six families: Abelisauroids, Noasaurids, Carcharodontosauridae, Megaraptoridae nov. fam., Alvarezsaurusidae, and Unenlagiidae, is presented in this paper.

TL;DR: The Jehol Biota is defined by using a palaeoecological concept, and by combining ecological and taphonomic aspects, i.e., as organisms that lived in the Early Cretaceous volcanic-influenced environments of northeastern China, and were buried in lacustrine and rarely fluvial sediments, where most turned into exceptionally preserved fossils.

TL;DR: In this article, a high-resolution holostratigraphic analysis of this part of the Chalk Group has been undertaken on these cores, notably Stevns-1, in order to provide a record of changes in chalk facies, water depths and sea-water temperatures.

TL;DR: In the Tianjialou Formation of the Lower Cretaceous Dasheng Group in Shandong Province, China, a new dinosaur track assemblages were discovered recently as discussed by the authors.

TL;DR: In this article, a case study of fault-controlled hydrothermal dolomitization of shallow-marine carbonates of Late Aptian to Early Albian age in the southern Maestrat Basin is presented.

TL;DR: In this paper, the authors presented the history of the rise, growth and sudden demise of the Urgonian limestones, and constructed eleven maps for deposits ranging in age from the Late Hauterivian pro parte to the Early Aptian (Bedoulian) proparte.

TL;DR: It appears that Koskobilo is the most diverse decapod fauna from a single locality currently known from the Cretaceous, and a rarefaction analysis shows that the maximum number of species is nearly reached, which suggests that the decapod peak diversity is largely ecological in nature and not caused by a preservational bias.

TL;DR: New drill cores from the Lower Aptian historical stratotype at Roquefort-La Bedoule (SE France) provide continuous high-resolution geochemical and isotope records which closely track the onset of OAE 1a in a subtropical intra-shelf basin (South Provencal Basin).

TL;DR: The Shah Kuh Formation of Central Iran as mentioned in this paper consists of micritic, thick-bedded shallow-water carbonates, which are rich in orbitolinid foraminifera and rudists, and it represents a late(est) Barremian-early Aptian carbonate platform and overlies Upper Jurassic-Barremian continental and marginal marine sediments (Chah Palang and Noqreh formations).

TL;DR: In the Sousa Basin of Brazil, footprints and tracks were found in at least 37 localities, in distinct stratigraphic positions as discussed by the authors, in the lower Cretaceous of the Antenor Navarro and Rio Piranhas formations.

TL;DR: In this article, a caudal vertebra possessing several rebbachisaurid synapomorphies is excavated by a large and pervasive lateral pneumatic foramen.

TL;DR: In this article, the authors used an integrated biostratigraphic approach, based on ammonite-calibrated orbitolinids and caprinids coupled with the published δ 13 C and δ 18 O record of coeval pelagic sections of the Ionian basin (Coppitella, eastern Gargano, and Paliambela, northwestern Greece) exposed in the Gargano Promontory (southeastern Italy).

TL;DR: Gondwanasuchus scabrosus gen. et. nov as discussed by the authors is a medium-sized baurusuchid with a strongly laterally compressed skull, bearing unique dentition with deep apicobasal sulci and probably well-developed binocular vision.

TL;DR: In this paper, a 103m-thick succession of Lower Barremian-Lower Aptian dark claystones and black shales exposed in a temporary road cut in northwest Germany (A39) was used to determine the timing of black shale deposition.

TL;DR: The combination of characters present in the axial remains of Lirainosaurus astibiae supports the idea that it is a derived lithostrotian close to Saltasaurinae.

TL;DR: A new ornithopod dinosaur from Antarctica, Trinisaura santamartaensis n.

TL;DR: GamGamma-ray (GR) logging and detrital zircon geochronology provide new constraints on changing provenance in the southern Hailar Basin of northeastern China as mentioned in this paper.

TL;DR: In this article, a study is conducted based on facies analysis, sedimentology, biostratigraphy focused on ammonites and foraminifers, and whole rock geochemistry (δ 13 C).

TL;DR: In this paper, a main organic-rich interval was identified in the basal Agua de la Mula Member, dominated by marine-derived Amorphous Organic Matter (AOM), coinciding with the highest Total Organic Carbon (TOC) content, between 1.4 and 3.8% suggesting dysoxic conditions.

TL;DR: In this paper, oxygen isotope analysis of aragonitic bivalve molluscan and ammonoid shells and belemnite rostra with well-preserved microstructure from the Ulyanovsk area has been performed.

TL;DR: This paper reported the first Chinese examples of Deltapodus from the Cretaceous of Xinjiang Uyghur Autonomous Region, China, and the second reported occurrence from Asia.

TL;DR: Baez et al. as discussed by the authors presented an analysis of Baez's work at the Consejo Nacional de Investigaciones Cientificas and Tecnicas (CICTE) of Argentina.

TL;DR: The Coll de Nargo area (Lleida Province, south-central Pyrenees) has yielded thousands of dinosaur eggs distributed in more than 30 levels across 370 m of Upper Cretaceous Tremp Formation deposits.

TL;DR: The assemblages of fossil charophyte fructifications from the La Huerguina Formation at the La Huerguina stratotype and the Las Hoyas section, along with some other samples from isolated outcrops are composed of Atopochara trivolvis var. triquetra, Globator maillardii var. trochiliscoides and var. biutricularis var. nov as discussed by the authors.

TL;DR: Stratigraphic sections across the Cenomanian/Turonian boundary (C/T boundary) are identified in New Zealand and were deposited in southern high latitudes of the palaeo-Pacific as discussed by the authors.

TL;DR: Aptian sedimentary succession of the Chott region in southern Tunisia was deposited on the margin of the Saharan shield, and is punctuated by numerous hiatuses that separate seven 3rd-order depositional sequences.

TL;DR: The chelonian fauna of Galve increases the systematic, anatomical, biostratigraphic, and paleobiogeographic knowledge on several clades, represented by taxa shared with other European regions, clades also present in Early Cretaceous sites of North America or Asia, as well as taxa exclusive of the Iberian record.

TL;DR: The Praeorbitolina/Palorbitolinoides Association characterizes a Lower Cretaceous biostratigraphic interval, which is marked by the common occurrence of these two foraminiferal genera as discussed by the authors.

TL;DR: In this paper, magnetic susceptibility (MS), field spectral gamma-ray (GRS), as well as CaCO3, total organic carbon (TOC), and elemental analyzes were performed in the Pośrednie III section.

TL;DR: In this article, a taxon-rich fauna includes numerous species of sharks, rays, chimaeroids, bony fish, mosasaurs, plesiosaurs, aquatic birds, crocodiles, and turtles.