Number of the records: 1
Mollusc trace fossils .i.Ptychoplasma./i. Fenton and Fenton, 1937 and .i.Oravaichnium./i. Plička and Uhrová, 1990: Their type material and ichnospecies
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SYSNO ASEP 0363166 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mollusc trace fossils Ptychoplasma Fenton and Fenton, 1937 and Oravaichnium Plička and Uhrová, 1990: Their type material and ichnospecies Author(s) Uchman, A. (PL)
Mikuláš, Radek (GLU-S) RID, SAI
Rindsberg, A. K. (US)Source Title Geobios. - : Elsevier - ISSN 0016-6995
Roč. 44, č. 4 (2011), s. 387-397Number of pages 11 s. Publication form WWW - WWW Language eng - English Country FR - France Keywords locomotion trace fossils ; Bivalves ; flysch ; Carboniferous ; Cretaceous ; Paleogene Subject RIV DB - Geology ; Mineralogy R&D Projects GA205/05/0917 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30130516 - GLU-S (2005-2011) UT WOS 000294380000006 EID SCOPUS 80051670802 DOI 10.1016/j.geobios.2010.08.001 Annotation Ichnogenera belonging to cleft-foot and wedge-foot bivalves can in most cases be distinguished. This paper addresses the taxonomy of locomotion traces made by wedge-foot bivalves. Ichnogenera Ptychoplasma Fenton and Fenton and Oravaichnium Plička and Uhrová are reviewed together with related ichnotaxa. Both are interpreted as the locomotion traces of non-cleft, wedge-foot bivalves. Both are usually preserved as hypichnial ridges that include a distinctive bioprint of amygdaloid segments. Ptychoplasma is dominated by amygdaloid segments whereas Oravaichnium is wall-like with only sporadic amygdaloid segments. Ichnospecies of Ptychoplasma are distinguished on the basis of their continuity: P. excelsum Fenton and Fenton (the type) is a relatively continuous trace fossil consisting largely of welded, imbricated amygdaloid segments; P. conica Pieńkowski and Uchman is less welded and consists of conical mounds; and P. vagans (Książkiewicz) consists of a largely discontinuous series of such segments. Only one ichnospecies of Oravaichnium is yet recognized, the type O. hrabei Plička and Uhrová. Tuberculichnus Książkiewicz is a valid ichnogenus, based on its type species T. meandrinus Książkiewicz, but another ichnospecies, T. vagans Książkiewicz, belongs to Ptychoplasma. Hostynichnium Plička and Siráňová is regarded as a junior synonym of Ptychoplasma; its only ichnospecies, H. duplex Plička and Siráňová, is a junior synonym of P. vagans. Lockeia serialis Seilacher and Seilacher, 1994 is a nomen nudum and belongs to Ptychoplasma. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2012
Number of the records: 1