Results 11 to 20 of about 183,005 (293)

A new Beneziphius beaked whale from the ocean floor off Galicia, Spain and biostratigraphic reassessment of the type species [PDF]

open access: yesActa Palaeontologica Polonica, 2017
Although the fossil record of beaked whales (Cetacea, Odontoceti, Ziphiidae) is continuously improving, the geological age of new taxa is often poorly constrained.
Ismael Miján   +2 more
doaj   +1 more source

New postcranial remains of large toxodontian notoungulates from the late Oligocene of Mendoza, Argentina and their systematic implications [PDF]

open access: yesActa Palaeontologica Polonica, 2017
During the last decade, the Deseadan (late Oligocene) Quebrada Fiera locality, Mendoza Province, Argentina, has provided a large amount of mammal remains.
Santiago Hernández Del Pino   +2 more
doaj   +1 more source

RESOLVING THE ANATOMY OF MATURE SCLERIFIED CONIFER SEED CONES: COMPLEMENTARITY AMONG THREE METHODS

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2022
Phylogenetic studies of conifers that involve morphology are hindered by gaps in the anatomical characterization of seed cones, a direct result of difficulties encountered in sectioning cones in mature stages, which are often hardened due to ...
Samar Riad El-Abdallah   +4 more
doaj   +1 more source

Dating Fossil Man [PDF]

open access: yesNature, 1966
Frameworks for Dating Fossil Man By Kenneth P. Oakley. Second edition. Pp. x + 355. (London: Weidenfeld and Nicolson, 1966.) 45s. net.
openaire   +1 more source

The endocranial anatomy of the stem turtle Naomichelys speciosa from the Early Cretaceous of North America [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Fossil turtles are one of the least studied clades in regard to endocranial anatomy. Recently, the use of non-invasive technologies, such as radiographic computed tomography (CT), increased the knowledge of the neuroanatomy of several extinct and extant ...
Ariana Paulina-Carabajal   +2 more
doaj   +1 more source

The first Permian centipedes from Russia [PDF]

open access: yesActa Palaeontologica Polonica, 2018
While fossils of myriapods are well-known from the Devonian and Carboniferous, until recently sediments from the Permian have been largely devoid of the remains of this important group of terrestrial arthropods.
Alexander V. Khramov   +3 more
doaj   +1 more source

A new tealliocaridid crustacean from the Late Carboniferous of North China and its biogeographic implications [PDF]

open access: yesActa Palaeontologica Polonica, 2018
A new tealliocaridid eumalacostracan is described from the Late Carboniferous Tupo Formation (Ningxia, China). Laevitealliocaris xiaheyanensis gen. et sp. nov.
Qiang Yang   +4 more
doaj   +1 more source

FIRST RECORD OF INDALECIA (MAMMALIA, LITOPTERNA?, INDALECIIDAE) IN THE RÍO LORO FORMATION (EARLY PALEOGENE, TUCUMÁN PROVINCE, ARGENTINA)

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
The Río Loro Formation (early Paleogene, Tucumán Province, northwestern Argentina) has yielded several endemic vertebrates, including turtles, crocodiles, and mammals.
Luis Sebastián Saade   +4 more
doaj   +1 more source

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