The Triassic TimescaleSpencer G. Lucas Geological Society of London, 2010 - 514 pages The Mesozoic Era begins with the approximately 50-million-year-long Triassic Period, a major juncture in Earth history when the vast Pangaean supercontinent completed its assembly and began its fragmentation, and the global biota diversified and modern-ized after the end-Permian mass extinction, the most extensive biotic decimation of the Phanerozoic. The temporal ordering of geological and biotic events during Triassic time thus is critical to the interpretation of some unique and pivotal events in Earth his-tory. This temporal ordering is mostly based on the Triassic time-scale, which has been developed and refined for nearly two centu-ries. This book reviews the state of the art of the Triassic timescale and includes comprehensive analyses of Triassic radio-isotopic ages, magnetostratigraphy, isotope-based and cyclostratigraphic correlations and timescale -relevant marine and non-marine bio-stratigraphy. |
Table des matières
an introduction | 1 |
history and status | 17 |
new constraints | 41 |
W MUTTONI G The geomagnetic polarity timescale for the | 61 |
H The Triassic isotope record | 103 |
a critical examination | 119 |
J Triassic conodonts and their role in stage boundary definition | 139 |
CARTER E S GORIČAN Š DUMITRICA P Triassic radiolarian | 163 |
LUCAS S G JENKS J F SPIELMANN J A Triassic ammonoid | 221 |
KÜRSCHNER W M WALDEMAAR HERNGREEN G F Triassic palynology of central and | 263 |
a review | 285 |
KOZUR H W WEEMS R E The biostratigraphic importance of conchostracans in the | 315 |
KLEIN H LUCAS S G Tetrapod footprints their use in biostratigraphy and biochronology | 419 |
LUCAS S G The Triassic timescale based on nonmarine tetrapod biostratigraphy and | 447 |
| 501 | |
A Biochronology of Triassic bivalves | 201 |
Expressions et termes fréquents
Adamanian aetosaur Albertiana albertii ammonoid ammonoid zones Anisian archosaur assemblages Bachmann basal base beds biochronology biostratigraphy bivalve Brack Buntsandstein carbon Carnian China Chinle Group conchostracan faunas conodont correlation cycles dicynodont Dienerian Early Triassic Euestheria extinction facies Falsisca Formation fossils genera genus Geological Society Germanic Basin global GSSP Heckert Hettangian History and Science Induan interval isotope Jurassic Keuper Kozur & Weems Krystyn Ladinian Late Triassic Laxitextella Lower Triassic Lucas Lystrosaurus magnetostratigraphy magnetozone marine Mesozoic Mexico Museum Middle Triassic Mojsisovics Mundil Muschelkalk Museum of Natural Muttoni Newark Basin Newark Supergroup Nonesian nonmarine Norian North America northern Novozhilov occur Olenekian Olsen Orchard Palaeoecology Palynology Permian Permian-Triassic boundary phytosaur radiolarian Rhaetian scale sediments Sevatian Smithian Southern Alps Spathian species strata stratigraphic substages Subzone taxa Tethyan Tethys tetrapod Tozer Trias Triassic ammonoid Triassic stage Triassic timescale Tuvalian U-Pb Upper Triassic uppermost vertebrate zircon zonation