Results 221 to 230 of about 5,569 (256)

Paleobiogeography: Why some sauropods liked it hot

Current Biology, 2022
Dinosaurs dominated terrestrial ecosystems for over 150 million years, and while most groups spread globally, giant, long-necked sauropods never managed to reach polar regions. A new study documents dinosaur biogeographic patterns and examines the role climate played in shaping their distribution and dispersal.
openaire   +2 more sources

Paleobiogeography of Chitinozoa

1977
Abstract Biogeographic distribution of Ordovician to Silurian Chitinozoa of the ancient Atlantic borderlands is discussed. The classification system followed is that of Jansonius (1970). The genus Conochitina is restricted to forms with a mucro or copula; some forms designated Conochitina by previous authors are assigned to Euconochitina ...
openaire   +1 more source

Paleobiogeography of Early Cretaceous Ammonoids

2015
International ...
Lehmann, Jens, Ifrim, Christina, Bulot, Luc, Frau, Camille   +3 more
openaire   +2 more sources

What Is Paleobiogeography?

2000
The field of paleobiogeography is derived in direct lineage from its close intellectual cousin, biogeography, a scientific discipline that had its birth in the adventurous and exploratory urges of humankind. When people traveled to far-off lands centuries ago they discovered, much to their surprise, that the plants and animals of these lands, as well ...
openaire   +1 more source

Defining Areas in Paleobiogeography

2000
The discipline of biogeography, as has been emphasized repeatedly, was developed because the same species are not found everywhere. Different regions do not have the same complement of species and, moreover, the climate alone is not sufficient explanation for why species are found where they are.
openaire   +1 more source

Continental Paleobiogeography as Phylogenetic Evidence

2006
Morphological convergence between members of clades isolated on different landmasses can mislead phylogenetic analyses, and can imply intercontinental dispersals that are unlikely given reconstructed paleogeography. It is argued here that paleobiogeographic data, like chronostratigraphic data, are relevant to the process of inferring phylogenetic ...
James B. Rossie, Erik R. Seiffert
openaire   +1 more source

Assessment of quantitative techniques in paleobiogeography

Marine Micropaleontology, 1982
Abstract A series of multivariate methods has been compared to assess their effectiveness in extracting essential information out of a complex micropaleontological data-set. The data-set used for this experiment consists of relative frequencies (percentages) of Miocene coccolith taxa or groups of taxa in cores of the Deep Sea Drilling Project (DSDP ...
Björn A. Malmgren, Bilal U. Haq
openaire   +1 more source

Paleobiogeography.

Systematic Zoology, 1977
Gareth Nelson, C. A. Ross
openaire   +2 more sources

Paleozoic ammonoid paleobiogeography in Southeast Asia

Geosciences Journal, 2000
Paleobiogeography of the Late Paleozoic ammonoids in Southeast Asia is discussed on the basis of the fossil records from Thailand and Malaysia. The index of faunal resemblance is expressed as 100 C/N1, where C is the number of taxa common to both, and N1 is the total number of taxa (at a specified level) in the first, smaller (or equal) of the two ...
Masayuki Fujikawa, Takeshi Ishibashi
openaire   +1 more source

Paleogeography, Paleobiogeography, and Anthropoid Origins

1994
The study of anthropoid origins has long been tied to hypotheses postulating Eocene dispersal of early anthropoids or their precursors into Africa from Europe (e.g., Gingerich, 1975; Rasmussen and Simons, 1988), from Asia (e.g., Gingerich, 1980; Ciochon and Ghiarelli, 1980; Giochon et al., 1985; Rosenberger, 1986), or from South America (e.g., Szalay ...
Patricia A. Holroyd, Mary C. Maas
openaire   +1 more source