Results 61 to 70 of about 105,245 (213)
Osteology of the unenlagiid theropod Neuquenraptor argentinus from the Late Cretaceous of Patagonia [PDF]
, 2017 Neuquenraptor argentinus was described as the first undoubted deinonychosaurian theropod from Gondwana. The only known specimen is represented by a fragmentary skeleton, including a nearly complete foot, coming from Late Cretaceous beds of Neuquén ...
Agnolin, Federico +3 more
core +2 more sources
Acta Palaeobotanica, 2015 The finding of fossil freshwater diatoms in late Cretaceous chert in Mexico suggests - together with all the discoveries of fossil freshwater diatoms known from positions older than the Cretaceous - that the extinct marine Cretaceous diatom taxa cannot ...
Siemińska Jadwiga
doaj +1 more source
The first iguanian lizard from the Mesozoic of Africa [PDF]
Royal Society Open Science, 2016 The fossil record shows that iguanian lizards were widely distributed during the Late Cretaceous. However, the biogeographic history and early evolution of one of its most diverse and peculiar clades (acrodontans) remain poorly known.
Sebastián Apesteguía +3 more
doaj +1 more source
Regional geothermal aquifer architecture of the fluvial Lower Cretaceous Nieuwerkerk Formation – a palynological analysis [PDF]
, 2017 The primary challenge for efficient geothermal doublet design and deployment is the adequate prediction of the size, shape, lateral extent and thickness (or aquifer architecture) of aquifers.
Donselaar, Marinus E. +4 more
core +2 more sources
Latitudinal distribution of paleotemperature on land and sea from early Cretaceous to middle Miocene [PDF]
, 1994 Paleotemperature data from the of oceans and the continents are summarized for the interval from the early Cretaceous through the middle Miocene. The data are contoured on diagrams of age vs latitude after adjustments for the known occurrences of ...
Frakes, Larry A. +2 more
core
PLoS ONE, 2014 Studying the evolution and biogeographic distribution of dinosaurs during the latest Cretaceous is critical for better understanding the end-Cretaceous extinction event that killed off all non-avian dinosaurs.
Thomas E Williamson, Stephen L Brusatte
doaj +1 more source
Integrated stratigraphy of the Upper Hauterivian to Lower Barremian Agua de la Mula Member of the Agrio Formation, Neuquén Basin, Argentina [PDF]
, 2011 The Upper Hauterivian to Lower Barremian Agua de la Mula Member of the Agrio Formation (Neuquén Basin, Argentina) was studied applying an integrated stratigraphic approach and facies analysis.
Archuby, Fernando +2 more
core
PLoS ONE, 2014 The fossil record for neoceratopsian (horned) dinosaurs in the Lower Cretaceous of North America primarily comprises isolated teeth and postcrania of limited taxonomic resolution, hampering previous efforts to reconstruct the early evolution of this ...
Andrew A Farke +3 more
doaj +1 more source
BIOGEOGRAPHIC HISTORIES AND CHRONOLOGIES OF DERIVED IGUANODONTIANS
Publicación Electrónica de la Asociación Paleontológica Argentina, 2015 The geographic distributions, chronology, and phylogenetic relationships of derived iguanodontians describe a biogeographic history of active intercontinental dispersal, which is tested via comparison with eustatic sea level fluctuations.
Jason J. Head, Yoshitsugu Kobayashi
doaj
Revista Mexicana de Ciencias Geológicas, 2019 In the Caborca–Altar area of northwest Sonora, variably deformed and metamorphosed sedimentary and volcanic rocks crop out in a northwest-southeast–trending belt (El Batamote belt) at least 70 km long.
Carl E. Jacobson +5 more
doaj +1 more source