Chelicerate Arthropods, including the Oldest Phalangiotardbid Arachnid, from the Early Devonian (Siegenian) of the Rhenish Massif, Germany

Poschmann, M. and Anderson, L. I. and Dunlop, J. A. (2005) Chelicerate Arthropods, including the Oldest Phalangiotardbid Arachnid, from the Early Devonian (Siegenian) of the Rhenish Massif, Germany. Journal of Paleontology, 79 (1). pp. 110-124. DOI 10.1666/0022-3360(2005)

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Abstract

ABSTRACT—A relatively diverse chelicerate fauna has been detected in Early Devonian, Siegenian strata of the Westerwald area,Rhineland-Palatinate, Germany. The arachnids, comprising trigonotarbids and the oldest phalangiotarbids, are described and figured here along with the chasmataspidids. To accomodate the phalangiotarbid a new genus and species in the family Architarbidae, Devonotarbus hombachensis, is raised. Devonotarbus n. gen. is characterized by an approximately straight posterior carapace margin, abbreviated and undivided anterior tergites, a large sixth tergite, and fused posterior tergites. The chasmataspidid closely resembles Diploaspis casteri from the Emsian assemblage of Alken an der Mosel, but is readily discernible as a new species, D. muelleri, by a strong tuberculation of its dorsal integument. With only fragmentary opisthosomal remains available, the trigonotarbids cannot be placed in known taxa with any certainty at this time

Item Type: Article
Uncontrolled Keywords: NIL AREP 2005
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
Journal or Publication Title: Journal of Paleontology
Volume: 79
Page Range: pp. 110-124
Identification Number: 10.1666/0022-3360(2005)
Depositing User: Sarah Humbert
Date Deposited: 11 Nov 2010 12:41
Last Modified: 23 Jul 2013 09:59
URI: http://eprints.esc.cam.ac.uk/id/eprint/1780

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