Results 171 to 180 of about 12,527 (229)

Dispersal of Late Triassic clam shrimps across Pangea linking northwestern Gondwana and central Pangea rift basins. [PDF]

Sci Rep
Alarcón CM, Colombi CE, Gallego OF, Drovandi JM, Monferran MD.   +4 more
europepmc   +1 more source

Biostratigraphy of lower cretaceous of the Manín Unit (Butkov quarry, Strážovské vrchy Mts., Western Carpathians)

, 2003
Skupien, Petr, Vašíček, Zdeněk, Halásová, Eva, Reháková, Daniela   +3 more
core  

Continuity of the Sangdanlin Paleocene section and rejection of a large Greater India in the Early Cretaceous. [PDF]

Proc Natl Acad Sci U S A
Huang W, Garzanti E, Moore TC, Kapp P, DeCelles PG, Niu S.   +5 more
europepmc   +1 more source

A long-headed Cambrian soft-bodied vertebrate from the American Great Basin region. [PDF]

R Soc Open Sci
Lerosey-Aubril R, Ortega-Hernández J.
europepmc   +1 more source

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Systematic biostratigraphy: A solution to problematic classification systems in biostratigraphy

Palaeoworld, 2014
Abstract Systematic biostratigraphy is based on the exclusive use of monophyletic marker taxa. Non-monophyletic, or artificial, marker taxa have been shown to change biostratigraphic correlations, a situation that can be rectified by using systematics to ensure that marker taxa are monophyletic or natural.
Malte C Ebach
exaly   +2 more sources

Paleozoic Ammonoid Biostratigraphy

, 2015
Introduction: The research field of Paleozoic ammonoid biostratigraphy has undergone major changes in the last few decades. In early attempts at ammonoid biostratigraphy in the 1980s, research efforts mainly focused on the stratigraphical subdivision of the rock succession and the correlation of time equivalent assemblages with the aim of a uniform ...
Korn, Dieter, Klug, Christian
openaire   +3 more sources

Biostratigraphy

2005
Using fossils to tell geological time, biostratigraphy balances biology with geology. In modern geochronology - meaning timescale-building and making correlations between oceans, continents and hemispheres - the microfossil record of speciations and extinctions is integrated with numerical dates from radioactive decay, geomagnetic reversals through ...
openaire   +1 more source

Micropaleontology and Biostratigraphy

2021
To stratify six sediment cores, we applied the calcareous plankton biostratigraphy of the upper sediment cover based on the foraminiferal and nannofossil zonations suggested in Chap. 3 for the Ioffe Drift area. Datum levels (first and last appearances) of zonal index species in individual cores were used to denote zonal boundaries. The oldest recovered
Elena Ivanova, Olga Dmitrenko
openaire   +1 more source

Biostratigraphy of Triassic Ammonoids

2015
The Triassic is a turning point in the evolutionary history of ammonoids, characterized by the flourishing Ceratitida and the appearance of the first heteromorphs. Following the end-Permian mass extinction, ammonoids were among the first groups to rediversify by producing many new taxa.
Jenks, James F., Monnet, Claude, Balini, Marco, Brayard, Arnaud, Meier, Maximiliano   +4 more
openaire   +3 more sources