气候变化领域集成服务门户(CCPortal): Invertebrate epibionts on Ordovician conulariids from the Prague Basin (Czech Republic; Bohemia)

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DOI	10.1016/j.palaeo.2020.109963
	Invertebrate epibionts on Ordovician conulariids from the Prague Basin (Czech Republic; Bohemia)
	Bruthansová J.; Van Iten H.
发表日期	2020
ISSN	0031-0182
卷号	558
英文摘要	Approximately 4% of just over 5000 conulariids from ten Ordovician formations in the Prague Basin (Czech Republic) exhibit invertebrate epibionts and/or attachment scars. The commonest epibionts are craniid brachiopods followed by bryozoans and edrioasteroids, which are invariably articulated. Less abundant are monoplacophorans, Sphenothallus sp., ?Lichenocrinus sp., and an indeterminate invertebrate. Epibionts occur on Anaconularia anomala, Archaeoconularia, Conulariella sp., and Pseudoconularia grandissima, though predominantly on A. anomala and Archaeoconularia from open shelf deposits in the Upper Ordovician Letná and Zahořany formations, in which conulariids are substantially more abundant than in other formations. Epibionts on a particular conulariid belong to a single species or up to three species and major taxa. Except for monoplacophorans, epibionts occur on the external surface of the conulariids, in some cases with brachiopods, bryozoans, or edrioasteroids present on all four faces. Brachiopods and edrioasteroids present on all four faces show little variation between the faces in their size range. Also, brachiopods show apparent random trending of the antero-posterior axis, while edrioasteroids on some specimens of A. anomala and Archaeoconularia are preferentially centered on or near the facial midline. On schott-bearing specimens of A. anomala exhibiting brachiopods and/or edrioasteroids, these and other epibionts are absent on the schott. Bryozoans on some A. anomala and Archaeoconularia cover portions of all four faces and corners, and on two specimens of A. anomala the schott, too, is encrusted. A similar case involving edrioasteroids on Archaeoconularia sp. from the Upper Ordovician Upper Tiouririne Formation of Morocco is documented. These results highlight the importance of Ordovician conulariids as biological substrates, especially in Perunica and South Polar Gondwana, and indicate that encrustation occurred both on live individuals and on dead ones. The corners and midlines influenced the settlement and subsequent growth of brachiopods and edrioasteroids, and conulariids bearing these epibionts were buried catastrophically. © 2020 Elsevier B.V.
英文关键词	Cnidaria; Conulariida; Europe; Palaeoecology; Scyphozoa; Taphonomy
语种	英语
scopus关键词	biostratigraphy; brachiopod; bryozoan; encrustation; Gondwana; invertebrate; Ordovician; shelf dynamics; Bohemia; Czech Republic; Morocco; Prague Basin; Brachiopoda; Bryozoa; Cnidaria; Conulariida; Craniida; Edrioasteroidea; Invertebrata; Lichenocrinus; Scyphozoa; Sphenothallus
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150338
作者单位	Department of Palaeontology, National Museum, Cirkusová 1740, Prague 9, 193 00, Czech Republic; Institute of Geology and Palaeontology, Faculty of Science, Charles University, Albertov 6, Prague 2, 128 43, Czech Republic; Department of Geology, Hanover College, Hanover, IN 47243, United States; Department of Invertebrate Paleontology, Cincinnati Museum Center, 1301 Western Avenue, Cincinnati, OH 45203, United States
推荐引用方式 GB/T 7714	Bruthansová J.,Van Iten H.. Invertebrate epibionts on Ordovician conulariids from the Prague Basin (Czech Republic; Bohemia)[J],2020,558.
APA	Bruthansová J.,&Van Iten H..(2020).Invertebrate epibionts on Ordovician conulariids from the Prague Basin (Czech Republic; Bohemia).Palaeogeography, Palaeoclimatology, Palaeoecology,558.
MLA	Bruthansová J.,et al."Invertebrate epibionts on Ordovician conulariids from the Prague Basin (Czech Republic; Bohemia)".Palaeogeography, Palaeoclimatology, Palaeoecology 558(2020).