Results 111 to 120 of about 254 (156)

Enhanced marine biological pump as a trigger for the onset of the late Paleozoic ice age. [PDF]

Sci Adv
Zhang F, Pohl A, Elrick M, Wei GY, Cheng K, Crockford P, Fakhraee M, Lin YB, Li N, Wang XD, Shen SZ.   +10 more
europepmc   +1 more source

⁸⁷Sr/⁸⁶Sr evidence from the epeiric Martin Ridge Basin for enhanced carbonate weathering during the Hirnantian. [PDF]

Sci Rep, 2017
Hu D, Zhang X, Zhou L, Finney SC, Liu Y, Shen D, Shen M, Huang W, Shen Y.   +8 more
europepmc   +1 more source

Depositional Model and Controlling Factors of High-Quality Shales of the Wufeng and Longmaxi Formations in Western Chongqing, Sichuan Basin, China. [PDF]

ACS Omega
Chen Y, Lin W, Chen Y, Guo W, Du B, Li M, Zhang J.   +6 more
europepmc   +1 more source

Mercury spikes suggest volcanic driver of the Ordovician-Silurian mass extinction. [PDF]

Sci Rep, 2017
Gong Q, Wang X, Zhao L, Grasby SE, Chen ZQ, Zhang L, Li Y, Cao L, Li Z.   +8 more
europepmc   +1 more source

Cascading trend of Early Paleozoic marine radiations paused by Late Ordovician extinctions. [PDF]

Proc Natl Acad Sci U S A, 2019
Rasmussen CMØ, Kröger B, Nielsen ML, Colmenar J.   +3 more
europepmc   +1 more source

Evidence for cryptic molting behavior in the trilobite Toxochasmops vormsiensis from the Upper Ordovician Katian Kõrgessaare Formation, Estonia. [PDF]

Naturwissenschaften
Bicknell RDC, Vargas-Parra EE, Landman NH, Pärnaste H.   +3 more
europepmc   +1 more source

Constraints of Sedimentary Environment on Shale Organic Matter Enrichment: Insights from Elemental Geochemistry and Multiple Factor Analysis. [PDF]

ACS Omega
Shao X, Xu P, Jiang Z, Song Y, Yang Y, Wang D.   +5 more
europepmc   +1 more source

Identifying the most surprising victims of mass extinction events: an example using Late Ordovician brachiopods. [PDF]

Biol Lett, 2017
Finnegan S, Rasmussen CMØ, Harper DAT.
europepmc   +1 more source

Early Ordovician sea scorpions from Morocco suggest Cambrian origins and main diversification of Eurypterida. [PDF]

Proc Biol Sci
Van Roy P, Richards JC, Ortega-Hernández J.   +2 more
europepmc   +1 more source

Two exceptionally preserved biotas from North Dakota reveal cryptic Ordovician shelf ecologies. [PDF]

Proc Natl Acad Sci U S A
Mussini G, Butterfield NJ.
europepmc   +1 more source