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Published in 2020 at "Cretaceous Research"
DOI: 10.1016/j.cretres.2019.104282
Abstract: Abstract Ammonites are abundant and well preserved in the Tithonian-Valanginian (Upper Jurassic – Lower Cretaceous) sedimentary successions of the central Chilean Andes, known as the Lo Valdes and Banos del Flaco Formations. A total of…
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Keywords:
ammonite biostratigraphy;
cretaceous boundary;
bioevents jurassic;
biostratigraphy bioevents ... See more keywords
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Published in 2017 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2017.06.007
Abstract: Abstract The study of calpionellid distribution in the well-documented Las Loicas section of the Vaca Muerta Formation in the Neuquen Basin, Argentine Andes, allows the recognition of the upper part of the Crassicollaria Zone and…
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Keywords:
cretaceous boundary;
basin argentine;
calpionella;
jurassic cretaceous ... See more keywords
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Published in 2017 at "Journal of South American Earth Sciences"
DOI: 10.1016/j.jsames.2017.12.003
Abstract: Abstract The comments by Kietzmann & Iglesia Llanos (Comment on “Tethyan calpionellids in the Neuquen Basin (Argentine Andes), their significance in defining the Jurassic/Cretaceous boundary and pathways for Tethyan-Eastern Pacific connections” by R. Lopez-Martinez, B.…
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Keywords:
cretaceous boundary;
tethyan calpionellids;
kietzmann iglesia;
iglesia llanos ... See more keywords
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Published in 2019 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2019.02.016
Abstract: Abstract The Jurassic–Cretaceous boundary interval of northern Germany is characterised by non-marine deposits attributed to the Purbeck and Wealden facies. These organic-rich sediments were deposited under restricted, brackish-lacustrine conditions in a palaeogeographically isolated basin (Lower…
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Keywords:
micropalaeontology;
non marine;
northern germany;
jurassic cretaceous ... See more keywords
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Published in 2017 at "Geological Quarterly"
DOI: 10.7306/gq.1370
Abstract: The International Berriasian Working Group (ISCS) suggested primary and secondary marker “datums” to fix the basal Berriasian boundary and thus to define the Jurassic-Cretaceous boundary (Wimbledon et al., 2011, 2013). Two primary markers Calpionella ,…
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Keywords:
cretaceous boundary;
calcareous dinoflagellate;
boundary boreal;
jurassic cretaceous ... See more keywords