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This study is a taphonomic investigation of a new Late Triassic monotypic association from the Hyperodapedon Assemblage Zone (Santa Maria Formation, southern Brazil). All skeletal elements belong to the traversodontid cynodont Exaeretodon, representing a minimum of four individuals from different ontogenetic stages. Biogenic traces are identifiable on some elements, such as invertebrate scavenging...
The trace fossil Phymatoderma cf. granulata is described for the first time from the deep-marine deposits of the Hayama Group (Miocene) of Japan. This ichnotaxon is a burrow system composed of horizontal, straight to slightly curved tunnels ranging from 7.7 to 20.4mm in diameter (mean=14.98 mm), occasionally representing branching. Each tunnel is filled with ellipsoidal pellets with aspect ratios...
South-American foreland basins are related to the compressional tectonics that built the Andes starting in the Mesozoic; then the Neogene uplift of the Eastern Cordillera directly affected the sedimentary history of Amazonia, changing the course of the proto-Amazon/Orinoco Rivers. Marine influence in South America has a long history with episodic transgressions and regressions from the Campanian to...
A pupal exuviae of a non-biting midge (Chironomidae) is recorded in Eocene Rovno amber from Ukraine. The exuviae belongs to an Orthocladiinae species. It possesses several traits characteristic for terrestrial species including non-fringed anal lobes without macrosetae, tergites with only minute shagreen, bare conjunctives, and absence of thoracic horns and frontal warts. Up to now, this is the earliest...
The Bages-Sigean lagoon is situated on the northwestern margin of the Gulf of Lion, in the Languedoc region, Southern France. The evolution of this lagoon has been reconstructed through sedimentological and palaeoecological (ostracods and palynology) studies performed on a 29m-long core. While the age-depth model proposed is based on radiocarbon dates, some inconsistencies require rejecting several...
The Capo Mannu D1 local fauna (Early/Late Pliocene boundary) is one of the very rare pre-Pleistocene fossil assemblages of Sardinia; it allows to describe here the most ancient lagomorphs of the island known to date: Prolagus aff. figaro and Leporidae gen. et sp. indet. P. aff. figaro shows very slight morphological modifications due to endemism. This evidence strongly suggests that its arrival in...
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