A longirostrine Temnodontosaurus (Ichthyosauria) with comments on Early Jurassic ichthyosaur niche partitioning and disparity [PDF]
Abstract: We describe an almost complete ichthyosaur skeleton from the middle Toarcian (Lower Jurassic) of the Beaujolais foothills near Lyon, France, and assign it to Temnodontosaurus azerguensis sp. nov. This new species exhibits cranial peculiarities such as a thin, elongated and possibly edentulous rostrum, as well as a reduced quadrate.
Martin, Jeremy +3 more
openaire +2 more sources
Ontogeny of the braincase inStenopterygius(Reptilia, Ichthyosauria) from the Lower Jurassic of Germany [PDF]
The fossil record of the ichthyosaur genus Stenopterygius comprises a large number of specimens of all ontogenetic stages. This makes the taxon a good model for ontogenetic studies in a Mesozoic marine reptile. Here, we describe the morphology of the braincase elements of Stenopterygius over ontogeny and compare it with that of other known ichthyosaur ...
Feiko Miedema, Erin E. Maxwell
openaire +1 more source
Filling the Corallian gap: new information on Late Jurassic marine reptile faunas from England [PDF]
Two of the best known Mesozoic marine reptile assemblages can be found in units deposited in the Jurassic Sub-Boreal Seaway of the UK: the late Middle Jurassic Oxford Clay Formation (OCF) and Late Jurassic Kimmeridge Clay Formation (KCF). They record two
Brusatte, Stephen +2 more
core +2 more sources
LXIX.—On the interlocking of the neural arches in Ichthyosauria
n ...
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First record of the leptonectid ichthyosaur Eurhinosaurus longirostris from the Early Jurassic of Switzerland and its stratigraphic framework [PDF]
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
core
Evolution of an Atom Impeded by Measurement: The Quantum Zeno Effect
A quantum system being observed evolves more slowly. This `'quantum Zeno effect'' is reviewed with respect to a previous attempt of demonstration, and to subsequent criticism of the significance of the findings. A recent experiment on an {\it individual}
Balzer, Chr. +2 more
core +2 more sources
A new partial skeleton of a cryptocleidoid plesiosaur from the Upper Jurassic Sundance Formation of Wyoming [PDF]
Cryptocleidoid plesiosaurs from the Upper Jurassic are well known from the Oxford Clay (Callovian) of the United Kingdom. The plesiosaurs of the nearly coeval Sundance Formation (Oxfordian) of North America are poorly known, but are thought to include ...
O’Keefe, F. Robin +1 more
core +2 more sources
Float, explode or sink: postmortem fate of lung-breathing marine vertebrates [PDF]
What happens after the death of a marine tetrapod in seawater? Palaeontologists and neontologists have claimed that large lung-breathing marine tetrapods such as ichthyosaurs had a lower density than seawater, implying that their carcasses floated at the
Benecke, Mark +7 more
core
A well-preserved specimen of Stenopterygius quadriscissus (Reptilia, Ichthyosauria) from the Early Jurassic (Toarcian) of Yorkshire, UK and new insights into species delineation in the genus [PDF]
Despite abundant and productive Toarcian ichthyosaur-bearing localities in continental Europe, in the UK, Toarcian ichthyosaurs may often be fragmentary and/or too poorly preserved for positive identification.
Timothée Biot +3 more
doaj +3 more sources
The Slottsmøya marine reptile Lagerstätte: depositional environments, taphonomy and diagenesis [PDF]
The Late Jurassic Slottsmøya Member Lagerstätte on Spitsbergen offers a unique opportunity to study the relationships between vertebrate fossil preservation, invertebrate occurrences and depositional environment.
Delsett, Lene L. +6 more
core +2 more sources

