DOI: 10.1016/j.palaeo.2016.02.020
论文题名: Palaeobiology of Schaubcylindrichnus heberti comb. nov. from the Lower Jurassic of Northeast England
作者: Evans J.N. ; McIlroy D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 449 起始页码: 246
结束页码: 254
语种: 英语
英文关键词: Burrow wall
; Palaeobiology
; Palaeophycus heberti
; Schaubcylindrichnus
; Three-dimensional reconstruction
; Trace fossil
英文摘要: The distinctive species of Palaeophycus known as Palaeophycus heberti is characterised by its thick burrow wall and passive burrow fill. This species is typically associated with intensely bioturbated, heterolithic sandstones and mudstones deposited in shoreface to offshore marine palaeoenvironments. Three-dimensional analysis of specimens attributed to P. heberti based on closely-spaced serially ground surfaces has revealed a number of hitherto unknown morphological elements more comparable to the ichnogenus Schaubcylindrichnus, thereby creating Schaubcylindrichnus heberti comb. nov. Schaubcylindrichnus burrows are typically passively filled, and have a thick burrow wall composed of sand-rich annular rings. The three-dimensional reconstructions importantly demonstrate that the gross morphology is a broad-open U-shape, which is inconsistent with the ichnogeneric diagnosis of Palaeophycus. S. heberti differs from all other species of Schaubcylindrichnus in that the burrow wall is mineralogically heterogeneous rather than purely quartzose; the ichnogeneric diagnosis is thus emended to accommodate S. heberti. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68467
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Memorial University of Newfoundland, Department of Earth Sciences, St. John's, NL, Canada
Recommended Citation:
Evans J.N.,McIlroy D.. Palaeobiology of Schaubcylindrichnus heberti comb. nov. from the Lower Jurassic of Northeast England[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,449