Latest Albian echinoids from Pénzesgyőr (Bakony Mountains, Transdanubian Range) including the first record of Trochotiara bourgueti (Agassiz, 1840) from Hungary
László Bujtor , Marouf A.M. Abdelhamid , Gamal M.E. El Qot , Gabriella Földvári
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引用次数: 0
Abstract
Glauconitic, condensed beds of uppermost Albian (Arrhaphoceras (Praeschloenbachia) briacense/Pervinquieria perinflata zones) at Tilos forest, Pénzesgyőr, Transdanubian Range, AlCaPa (=Alpine-Carpathian-Pannonian) tectonic unit in Hungary have yielded a rich fossil assemblage. It comprises mostly fragmentary ammonites, well-preserved echinoids, less abundant bivalves, gastropods, belemnites, and rare brachiopods and nautiloids. Amongst echinoids, five species have been distinguished (Camerogalerus conica, Catopygus neocylindricus, Holaster laevis, Hemiaster minimus, and Trochotiara bourgueti). The assemblage is dominated by Camerogalerus conicus and Catopygus neocylindricus. Trochotiara bourgueti is recorded for the first time from Hungary extending its stratigraphical range to the uppermost Albian. Hemiaster minimus is documented for the first time from Hungary. The palaeobiogeography, taphonomy and microfacies have been discussed. Palaeobiogeographical analysis of the reported echinoid species and some selected ammonite genera revealed similar distribution patterns for the Bakony Mountains indicating a transitional area and mixing zone for the northern and southern Tethyan taxa.
期刊介绍:
Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings.
Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale.
Research Areas include:
• Regional geology
• Stratigraphy and palaeontology
• Palaeobiology
• Palaeobiogeography
• Palaeoceanography
• Palaeoclimatology
• Evolutionary Palaeoecology
• Geochronology
• Global events.