First record of the leptonectid ichthyosaur Eurhinosaurus longirostris from the Early Jurassic of Switzerland and its stratigraphic framework [PDF]
, 2018 An incomplete skull of the leptonectid ichthyosaur Eurhinosaurus longirostris found in the Rietheim Member (previously "Posidonienschiefer”; Toarcian, Early Jurassic) of Staffelegg, Canton Aargau, is the first record from Switzerland of this taxon and ...
Maisch, Michael +2 more
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Geoarchaeology, Volume 41, Issue 1, January/February 2026.ABSTRACT Numerous buildings, monuments, and infrastructural works in Verona were constructed during the Roman period using stone, a material abundantly available from quarrying areas located relatively close to the city. Petrographic investigations conducted by Transmitted Polarized Light Optical Microscopy (TPL‐OM) and complemented by colorimetric ...
Eliana Bridi +3 more
wiley +1 more source
A calcareous nannofossil and organic geochemical study of marine palaeoenvironmental changes across the Sinemurian/Pliensbachian (early Jurassic, ~191Ma) in Portugal [PDF]
, 2016 The Sinemurian/Pliensbachian boundary (~ 191 Ma) is acknowledged as one of the most important steps in the radiation of planktonic organisms, especially primary producers such as dinoflagellates and coccolithophores.
Baudin, F. +6 more
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Rivista Italiana di Paleontologia e Stratigrafia, 2019 Brachiopods are a key group in Phanerozoic marine diversity analyses for their excellent fossil record and distinctive evolutionary history. A genus-level survey of raw diversity trajectories allows the identification of the Brachiopod Big Five, episodes
ATTILA VÖRÖS +2 more
doaj +1 more source
Middle Phanerozoic mass extinctions and a tribute to the work of Professor Tony Hallam [PDF]
, 2016 Tony Hallam's contributions to mass extinction studies span more than 50 years and this thematic issue provides an opportunity to pay tribute to the many pioneering contributions he has made to this field.
Bachan +11 more
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The diet of the early Toarcian ammonite Harpoceras falciferum
, 1997 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Jäger, Manfred, Fraaye, René
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The Toarcian of Bredon Hill, and a Comparison with Deposits elsewhere [PDF]
Quarterly Journal of the Geological Society of London, 1903 I. Geology. The Upper Lias (G 3) of Bredon Hill is shown on the Geological-Survey map as more than 300 feet in thickness. It is said to be as much as 380 feet thick, whereas at Wotton-under-Edge, some 36 miles to the south, it is said to be only 10 feet.
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Deux nouveau horizons a vertebres (Chondrichthyes-Elasmobranchii et osteichthyes actinopterygii) dans le toarcien belge et limitrophe (Lorraine) synthese stratigraphique et profils nouveaux [PDF]
, 1990 Two new vertebrates faunas (elasmobranches, actinopterygians, reptiles) from the belgian Toarcian are introduced.
Delsate, D.
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Environmental and climatic proxies for the Cañadón Asfalto and Neuquén basins (Patagonia, Argentina): review of middle to upper jurassic continental and near coastal sequences [PDF]
, 2015 In this review, we include several proxies (sedimentology, palynology, invertebrates) from the Cañadón Asfalto and Neuquén basins, to infer the environments and regional climatic context during the Middle to Late Jurassic of Patagonia.
Cabaleri, Nora Graciela +6 more
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Late Triassic to Early Jurassic sedimentation in northern Neuquén Basin, Argentina : tectosedimentary Evolution of the First Transgression [PDF]
, 2005 The present paper interprets and discusses the Late Triassic-Early Jurassic of the first transgression at northern Neuquén basin (Argentina) and its paleostructural control due to ancient horsts and half-grabens.
Lanés, S. Departamento de Geología
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