globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2014.02.003
论文题名:
First record of Podichnus in orthide brachiopods from the Lower Ordovician (Tremadocian) of NW Argentina and its relation to the early use of an ethological strategy
作者: Santos A.; Mayoral E.; Villas E.; Herrera Z.; Ortega G.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2014
卷: 399
起始页码: 67
结束页码: 77
语种: 英语
英文关键词: Argentina ; Brachiopod ; Fixichnia ; Ordovician ; Podichnus ; Podichnus conicus isp. n
英文摘要: Well preserved etchings from the pedicle attachment of brachiopods occur on orthide brachiopod shells from Lower Ordovician (Tremadocian) of NW Argentina. Under the name Podichnus conicus isp. n. this trace fossil is interpreted as a fixichnia produced by the attachment of brachiopod pedicles upon hard substrates. The trace is characterized by an irregular and asymmetrical cluster of circular pits. Each individual pit has a typical conical shape and presents the external mean diameter/length ratio close to 1. The occurrence of P. conicus isp. n. in the Tremadocian is the oldest record of this ichnogenus, and points to orthide brachiopods as Podichnus producers for the first time. The presence of this structure provides new information regarding colonization of biogenic hard substrates during the Early Ordovician and an adaptive strategy of its use by orthide brachiopods. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69394
Appears in Collections:过去全球变化的重建

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作者单位: Departamento de Geodinámica y Paleontología, Facultad de Fiencias Experimentales, Universidad de Huelva, Campus de el Carmen, Avda. 3 de Marzo, s/n, 21071 Huelva, Spain; Departamento de Ciencias de la Tierra, Facultad de Ciencias, Universidad de Zaragoza, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain; Museo de Paleontología, Facultad de Ciencias Exactas Físicas y Naturales, Avda. Vélez Sarsfield 299, 5000 Córdoba, Argentina

Recommended Citation:
Santos A.,Mayoral E.,Villas E.,et al. First record of Podichnus in orthide brachiopods from the Lower Ordovician (Tremadocian) of NW Argentina and its relation to the early use of an ethological strategy[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2014-01-01,399
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