http://hdl.handle.net/20.500.12128/513
Title: | Crinoids from the Famennian of the Holy Cross Mountains, Poland |
Authors: | Głuchowski, Edward |
Keywords: | Crinoidea; Extinction; Famennian; Holy Cross Mountains; Recovery; Poland |
Issue Date: | 2002 |
Citation: | Acta Palaeontologica Polonica, (2002), no. 2, s. 319-328 |
Abstract: | Disarticulated crinoid columnals and pluricolumnals from the Famennian of the Holy Cross area were analysed. Sixteen crinoid taxa were distinguished, only one of which is based on stems attributed to a calyx-based genus, and the others are classified within artificial supraspecific units. Two of these are new: Schyschcatocrinus levis sp. nov. and Cosmocrinus polonicus sp. nov. The described crinoid fauna shows distinct extinction-recovery temporal pattern: the Frasnian-Famennian crisis affected 50% of stem-based families and 70% of late Frasnian stem-based genera. The succession of crinoid faunas represented by three faunal intervals has been identified and correlated to standard conodont zones: FIa, Palmatolepis triangularis Zone (relic "Frasnian" crinoid assemblage Schyschcatocrinus delicatus-Calleocrinus kielcensis), FIb, Pa. crepida to Pa. marginifera zones (crinoid assemblage Calleocrinus kielcensis-Schyschcatocrinus levis) and FIc, Pa. trachytera to S. praesulcata zones (crinoid assemblage Cosmocrinus polonicus-Acbastaucrinus affectatus). The succession was controlled mostly by eustatic factors. |
URI: | http://hdl.handle.net/20.500.12128/513 |
ISSN: | 0567-7920 1732-2421 |
Appears in Collections: | Artykuły (WNP) |
File | Description | Size | Format | |
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Gluchowski_Crinoids_from_the_Famennian_of_the_Holy_Cross_Mountains.pdf | 524,37 kB | Adobe PDF | View/Open |
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