| Title: | Rare Middle Triassic coleoids from the Alpine-Carpathian system: new records from Slovakia and their signifcance |
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| Authors: | ID Košťák, Martin (Author)
ID Schlögl, Ján (Author)
ID Fuchs, Dirk (Author)
ID Havrila, Milan (Author)
ID Kolar-Jurkovšek, Tea (Author)
ID Vörös, Attila (Author)
ID Havelcová, Martina (Author)
ID Šurka, Juraj (Author)
ID Havrila, Jakub (Author)
ID Holcová, Katarína (Author) |
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| Files: |  PDF - Presentation file, download (6,08 MB)
MD5: 2B72987D4B1FA8633027EDEEAFE09476
 URL - Research data, visit https://web.natur.cuni.cz/ugp/main/paleodata/brevicono1
URL - Research data, visit https://web.natur.cuni.cz/ugp/main/paleodata/brevicono2
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  GeoZS - Geological Survey of Slovenia
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| Abstract: | Two stratigraphically well constrained (by ammonites and conodonts) coleoid remains have been recorded from the Triassic (Anisian) dark-grey organodetritic limestones (Ráztoka Limestone) of Western Carpathians (Hronic Nappe). The limestones deposited at the periphery of a former carbonate platform. It yields a highly diverse cephalopod fauna including nautiloids (2 taxa), ammonoids (7 taxa) and indetermined aulacoceratids. Two unusual coleoid specimens are referred to genus Mojsisovicsteuthis (M. boeckhi) and probably to a new taxon (described as Breviconoteuthis aff. breviconus herein) possessing similar morphological features of genus Breviconoteuthis (Phragmoteuthida) and/or Zugmontites. Based on index ammonites and conodonts, both records are of the uppermost Trinodosus through the lowermost Reitzi zones (Anisian—lower Illyrian). While the genus Mojsisovicsteuthis has been widely dispersed (however its records are rare), the occurrence of Breviconoteuthis and Zugmontites is strictly limited to the Alpine-Carpathian region. Comparing with the holotype and additional specimens stored in the Hungarian Natural History Museum, the overal shell of Mojsisovicsteuthis and its size has been reconstructed. Its relationship to aulacoceratids and phragmoteuthids is briefly discussed. Geochemical record (n-alkanes from the bulk rock) provided a relevant signal of the existence of algal meadows. |
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| Keywords: | Cephalopods, Conodonts, Anisian, Palaeoenvironment |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 08.05.2024 |
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| Publisher: | Springer Nature |
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| Year of publishing: | 2024 |
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| Number of pages: | 19 str. |
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| Numbering: | vol. 143 |
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| PID: | 20.500.12556/DiRROS-18943  |
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| UDC: | 56 |
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| ISSN on article: | 1664-2384 |
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| DOI: | 10.1186/s13358-024-00316-7 |
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| COBISS.SI-ID: | 195609603 |
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| Note: |
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| Publication date in DiRROS: | 21.05.2024 |
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| Views: | 433 |
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| Downloads: | 347 |
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