Results 331 to 340 of about 154,283 (378)
Some of the next articles are maybe not open access.

The effect of the Permo-Triassic bottleneck on Triassic ammonoid morphological evolution

Paleobiology, 2004
Abstract Ammonoid taxonomic history is a well-documented series of diversity “booms and busts”, but the effect of this taxonomic pattern on morphological evolution has not received as much attention. We know particularly little about the effects of the Permo-Triassic mass extinction on the subsequent morphological evolution of the ammonoids ...
Alistair J. McGowan, Alistair J. McGowan
openaire   +2 more sources

The Triassic timescale: an introduction [PDF]

open access: possibleGeological Society, London, Special Publications, 2010
Abstract German geologists began to study rocks now recognized as Triassic during the late 1700s. In 1823, one of those German geologists, a very astute mining engineer named Friedrich August von Alberti (1795–1878), coined the term ‘Trias formation’ for an c .
openaire   +1 more source

Triassic Reefs of the Tethys

2001
The evolution of Triassic reefs started with a long-lasting global crisis of the metazoan reef ecosystem after the Permian—Triassic mass extinction (about 12 Ma), followed by a relatively rapid recovery during the Middle Triassic. Reef systems were differentiated during the Upper Triassic but were severely affected by a global crisis at the Triassic ...
Erik Flügel, Baba Senowbari-Daryan
openaire   +2 more sources

Chronology of Fluctuating Sea Levels Since the Triassic

Science, 1987
B. Haq, J. Hardenbol, P. Vail
semanticscholar   +1 more source

Pharetronids in Triassic Reefs

1991
During the Phanerozoic, different groups of sponges played more or less important roles in reef structures, acting as reef builders, reef dwellers, or as encrusting and stabilizing organisms of the primary reef frame (Fig. 3b). Sponges were also important pioneers, for example acting as sediment fixers, and provided substrate for other reef builders (e.
B. Senowbari-Daryan, P. Riedel
openaire   +2 more sources

Permo-Triassic Buildups and Late Triassic Ecologic Reefs

1975
The Permian Reef Complex, surrounding the Delaware basin of West Texas and New Mexico, and the Middle Triassic (Ladinian) of the Dolomites of the South Alps are two of the worlds greatest and best known ancient carbonate buildups. They are closely related in age and organic content.
openaire   +2 more sources

The origin of squamates revealed by a Middle Triassic lizard from the Italian Alps

Nature, 2018
T. Simões   +8 more
semanticscholar   +1 more source

Permian – Triassic Metallogeny

2015
Three mineralization complexes were formed during the Permian – Triassic period in the following order: PGE-Cu-Ni and V-Ti – Fe of magmatic origin; Au – sulfide and Sn – sulfide. The first ore complex including magma-origin Cu-Ni-(Pt) mineralization is related to ultramafic - mafic magmatic differentiation in structures of Song Da, Song Hien rifts ...
Tuan-Anh Tran   +7 more
openaire   +2 more sources

A Triassic stem lepidosaur illuminates the origin of lizard-like reptiles

Nature, 2021
Ricardo N Martínez   +2 more
exaly  

Triassic stem caecilian supports dissorophoid origin of living amphibians

Nature, 2023
Ben T Kligman, Bryan M Gee, Adam D Marsh
exaly  

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