Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +10 more sources
An open ocean record of the Toarcian oceanic anoxic event [PDF]
Solid Earth, 2011 Oceanic anoxic events were time intervals in the Mesozoic characterized by widespread distribution of marine organic matter-rich sediments (black shales) and significant perturbations in the global carbon cycle.
D. R. Gröcke +4 more
doaj +8 more sources
The impact of the Pliensbachian–Toarcian crisis on belemnite assemblages and size distribution [PDF]
Swiss Journal of Palaeontology, 2021 The second-order Pliensbachian–Toarcian crisis affected major groups of marine organisms. While its impact has been intensively studied for ammonites, the response of belemnites is only currently emerging through quantitative studies.
Kenneth De Baets +13 more
doaj +5 more sources
A new specimen of Plesiopterys wildi reveals the diversification of cryptoclidian precursors and possible endemism within European Early Jurassic plesiosaur assemblages [PDF]
PeerJBackground A virtually complete and articulated plesiosaur skeleton (MH 7) is described from the Lower Jurassic (Toarcian) Posidonienschiefer Formation near Holzmaden in southern Germany. Plesiosaur remains are rare in this rock unit compared to those of
Miguel Marx +5 more
doaj +3 more sources
Biostratigraphy and sequence stratigraphy of the Toarcian Ludwigskanal section (Franconian Alb, Southern Germany) [PDF]
Zitteliana, 2021 Extensive construction work at the canal cutting of the Ludwigskanal near Dörlbach, Franconian Alb, provided the opportunity to re-investigate a scientific-historical and biostratigraphically important reference section of the South-German Toarcian.
Gernot Arp +4 more
doaj +3 more sources
Stenopterygiids from the lower Toarcian of Beaujolais and a chemostratigraphic context for ichthyosaur preservation during the Toarcian Oceanic Anoxic Event [PDF]
Geological Society, London, Special Publications, 2021 Abstract We report new ichthyosaur material excavated in lower Toarcian levels of the LafargeHolcim Val d'Azergues quarry in Beaujolais, SE France. A partially articulated skull and a smaller, unprepared but likely subcomplete skeleton preserved in a carbonate concretion are identified as stenopterygiids, a family of wide European ...
Jeremy E. Martin +14 more
openaire +1 more source
Major sulfur cycle perturbations in the Panthalassic Ocean across the Pliensbachian-Toarcian boundary and the Toarcian Oceanic Anoxic Event [PDF]
Global and Planetary Change, 2022 The early Toarcian Oceanic Anoxic Event (T-OAE, ~183 Ma) was characterized by marine deoxygenation and the burial of organic-rich sediments at numerous localities worldwide. However, the extent of marine anoxia and its impact on the sulfur cycle during the T-OAE is currently poorly understood. Here, stable sulfur isotopes of reduced metal-bound sulfur (
Chen, W +6 more
openaire +2 more sources
Trochammina as opportunist foraminifera in the Lower Jurassic from north Siberia [PDF]
Polar Research, 2014 The ecostratigraphic analysis of foraminiferal assemblages from Upper Pliensbachian to Lower Toarcian (Lower Jurassic) mudstones, siltstones and black shales from northern Siberia allows for a better understanding of the response to the benthic biotic ...
Matías Reolid +2 more
doaj +1 more source
A First Record of Lower Jurassic (Toarcian) Coleoid Jaws in Siberia
Diversity, 2023 In the present paper, we describe several coleoid jaws discovered in the lower Toarcian black shales, cropping out along the Vilyui River (Yakutia, Russia).
Mikhail Rogov +3 more
doaj +1 more source
Rostrum size differences between Toarcian belemnite battlefields [PDF]
Fossil Record, 2018 Body size changes have been reported across crisis intervals. Belemnites – now considered extinct stem-decabrachians – have rarely been investigated for this purpose, and the few studies have resulted in ambiguous outcomes.
P. Rita, K. De Baets, M. Schlott
doaj +1 more source