Results 161 to 170 of about 2,787 (218)

Past aridity and dust drove biodiversity crises and altered pollination in the ancient gymnosperm Ephedra (Gnetales). [PDF]

open access: yesBiol Rev Camb Philos Soc
Barbolini N   +9 more
europepmc   +1 more source

Chronostratigraphy

open access: yes, 2021
Chronostratigraphy is both a set of stratigraphic concepts, and a set of guiding principles by which time represented in rocks, subdivides Earth’s geological history. Chronostratigraphy is composed of a set of hierarchical stratigraphic units (i.e. System, Series, Stage, Substage and Chronozone for chronostratigraphic units) that are used to subdivide ...
Hounslow, Mark W, Mark W. Hounslow
openaire   +2 more sources

A history of chronostratigraphy

open access: yesStratigraphy, 2007
ABSTRACT Chronostratigraphy has a “prehistory” beginning with Leonardo’s and Steno’s twofold relative geologic time division. It developed further with Marsili’s (1728), Lehmann’s (1756), Arduino’s (1759-60) and Werner’s (1787) threefold, fourfold, and fivefold divisions respectively. Meanwhile, the initial steps were being taken in understanding Earth’
VAI, GIAMBATTISTA
core   +4 more sources

Chronostratigraphy and Biostratigraphy

Geological Magazine, 1965
AbstractComments are given on a number of papers dealing with principles and procedure in stratigraphic classification which have appeared in British journals during 1963–65. It is emphasized that a clear distinction should be made between biostratigraphic units—bodies of rock strata characterized by certain palaeontological features and bounded by the
openaire   +1 more source

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