Ausichicrinites zelenskyyi gen. et sp. nov., a first nearly complete feather star (Crinoidea) from the Upper Jurassic of Africa [PDF]
Royal Society Open Science, 2022 Fossil comatulids, referred to as feather stars, are mostly known from highly disarticulated specimens. A single isolated element (centrodorsal) has been the basis for taxonomic description of a vast majority of fossil comatulids.
Mariusz A. Salamon +5 more
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The calcareous nannofossils and magnetostratigraphic results from the Upper Tithonian–Berriasian of Feodosiya region (Eastern Crimea) [PDF]
Geologica Carpathica, 2019 This article is concerned with nannofossil study of Tithonian–Berriasian sediments of Eastern Crimea. The NJT 16, NJT 17a, NJT 17b, NKT, and NK 1 nannofossil zones were determined. The occurrence of Nannoconus kamptneri minor, one of the potential marker-
Arkadiev Vladimir +4 more
doaj +3 more sources
High-precision U–Pb ages in the early Tithonian to early Berriasian and implications for the numerical age of the Jurassic–Cretaceous boundary [PDF]
Solid Earth, 2019 The numerical age of the Jurassic–Cretaceous boundary has been controversial and difficult to determine. In this study, we present high-precision U–Pb geochronological data around the Jurassic–Cretaceous boundary in two distinct sections from different ...
L. Lena +10 more
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Biostratigraphic significance of calcareous dinocysts in the Tithonian of the Pieniny Klippen Belt (southern Poland) [PDF]
PeerJBiostratigraphic studies of pelagic Tithonian limestones in the Western Tethys are important for regional palaeoenvironmental reconstructions, particularly for determining the onset of the accumulation of Maiolica-type sediments which dominated Early ...
Agnieszka Ciurej +3 more
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Insect and Plant Diversity in Hot-Spring Ecosystems during the Jurassic-Cretaceous Boundary from Spain (Aguilar Fm., Palencia) [PDF]
Biology, 2022 Hydrothermal palaeoenvironments are very uncommon in Upper Jurassic and Lower Cretaceous deposits worldwide. We present new plant and insect remains from travertines formed during the Jurassic-Cretaceous boundary in northern Spain (Aguilar Fm., Palencia ...
Artai A. Santos +5 more
doaj +2 more sources
Tithonian ammonoid biostratigraphy in eastern Himalayan Tibet
Geobios, 2004 Abstract The Tithonian and Lower Berriasian sediments in the eastern Himalayas of Tibet contain an extensive sequence of ammonoid fauna. New collections in situ through the Lanongla, Pure, Gucuo and Jiapeila sections have facilitated a major revision of the ammonoid assemblages.
Jiarun Yin, Raymond Enay
exaly +6 more sources
Tithonian-berriasian beds of dedine stream near Golubac [PDF]
Glasnik Srpskog Geografskog Društva, 2007 The possibilities for stratigraphical precision between the Upper Jurassic and the Lower Cretaceous in pelagic development are considered for the locality of Dedine stream.
Carević Ivana, Jovanović Velimir
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Failed prey or peculiar necrolysis? Isolated ammonite soft body from the Late Jurassic of Eichstätt (Germany) with complete digestive tract and male reproductive organs [PDF]
Swiss Journal of Palaeontology, 2021 Ammonoid soft parts have been rarely described. Here, we document the soft parts of a perisphinctid ammonite from the early Tithonian of Wintershof near Eichstätt (Germany). This exceptional preservation was enabled by the special depositional conditions
Christian Klug +3 more
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Remarks on the Tithonian- Berriasian ammonite biostratigraphy of west central Argentina [PDF]
, 2015 Fil: Riccardi, Alberto Carlos. División Paleozoología Invertebrados. Facultad de Ciencias Naturales y Museo.
Riccardi, Alberto Carlos
core +6 more sources
The sexual dimorphism in the Tithonian, Jurassic, simoceratid ammonite Lytogyroceras [PDF]
Acta Palaeontologica PolonicaThe family Simoceratidae Spath, 1925, lumps various formsbelonging to lineages with different roots and is clearlyparaphyletic. One of its genera is Lytogyroceras Spath, 1924,which stands apart from the typical forms of the familybearing strong ribbing ...
Horacio Parent, Enrique Ramos-Agustino
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