Temporal patterns in disparity and diversity of the Jurassic ammonoids of southern Germany [PDF]
A morphometric analysis of the characteristic whorl cross-sections of 1,200 Jurassic ammonoid species from southern Germany enabled us to characterise their morphospace.
M. S. Simon, D. Korn, S. Koenemann
doaj +5 more sources
The Late Jurassic-Early Cretaceous (164–100 Ma) represents one of the main transitional periods in life history. Recent studies unveiled a complex scenario in which abiotic and biotic factors and drivers on regional and global scales due to the ...
Eduardo Villalobos-Segura +7 more
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A giant pliosaurid skull from the late Jurassic of England. [PDF]
Pliosaurids were a long-lived and cosmopolitan group of marine predators that spanned 110 million years and occupied the upper tiers of marine ecosystems from the Middle Jurassic until the early Late Cretaceous.
Roger B J Benson +6 more
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Tip dating supports novel resolutions of controversial relationships among early mammals [PDF]
The estimation of the timing of major divergences in early mammal evolution is challenging due to conflicting interpretations of key fossil taxa. One contentious group is Haramiyida, the earliest members of which are from the Late Triassic.
Beck, RMD, King, B
core +2 more sources
Late Jurassic salamandroid from western Liaoning, China [PDF]
A Jurassic salamander, Beiyanerpeton jianpingensis (gen. et sp. nov.), from a recently found site in western Liaoning Province, China is the earliest known record of Salamandroidea. As a Late Jurassic record of the group, it extends the range of the clade by ~40 Ma.
Ke-Qin, Gao, Neil H, Shubin
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Late Jurassic theropod dinosaur bones from the Langenberg Quarry (Lower Saxony, Germany) provide evidence for several theropod lineages in the central European archipelago. [PDF]
Evers SW, Wings O.
europepmc +2 more sources
A turiasaurian sauropod dinosaur from the Early Cretaceous Wealden Supergroup of the United Kingdom [PDF]
The Jurassic/Cretaceous (J/K) boundary, 145 million years ago, has long been recognised as an extinction event or faunal turnover for sauropod dinosaurs, with many ‘basal’ lineages disappearing.
Philip D. Mannion
doaj +2 more sources
Palaeobiogeographical implications of the first fossil wood flora from the Jurassic of Turkey [PDF]
We describe Jurassic fossilized woods from the Gümüşhane and Erzurum regions of Turkey that represent the eastern Sakarya Zone (eSZ) terrestrial biota. We collected 27 fossil wood fragments in total.
ÜNAL AKKEMİK +4 more
doaj +1 more source
New ophthalmosaurid ichthyosaurs from the European lower cretaceous demonstrate extensive ichthyosaur survival across the Jurassic–Cretaceous boundary [PDF]
Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one ...
A Sirotti +91 more
core +12 more sources
Late Jurassic–Early Cretaceous marine deoxygenation in NE Greenland [PDF]
The Late Jurassic–Early Cretaceous interval represents a prolonged marine deoxygenation period particularly in the Boreal–Arctic basins, the controlling factors of which remain poorly understood. Two drill cores totalling >450 m cover the Kimmeridgian–Barremian succession in contrasting locations in an evolving half-graben system (basin
J. Hovikoski +11 more
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