A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis

Journal article


Publication Details

Author(s): Gügel B, de Baets K, Jerjen I, Schuetz P, Klug C
Journal: Acta Palaeontologica Polonica
Publisher: INST PALEOBIOLOGII PAN
Publication year: 2017
Volume: 62
Journal issue: 2
Pages range: 237-247
ISSN: 0567-7920
eISSN: 1732-2421


Abstract


Machaeridians are an extinct group of armoured annelids, which are mainly known from isolated sclerites present from the Ordovician to the Permian. Based on articulated specimens with preserved soft-tissues and trace fossils, derived machaeridians are interpreted to have an infaunal burrowing mode of life. However, the taphonomy of sclerite associations is still largely unstudied. We herein investigated associated sclerites from the Middle Devonian of China using micro-computer tomography and 3D-analysis. These sclerites belong to a single individual and lie in close proximity. The absence of indications for current alignment, major bioturbation or other processes causing a disarticulation as reflected in the randomly arranged dacryoconarids suggest that the sclerites became disarticulated in the course of the normal decay processes, perhaps aided by scavenging and incomplete burial. The unique morphology of the sclerites indicates that the specimen presented here belongs to a previously undescribed species, which we describe herein as Lepidocoleus kuangguoduni sp. nov.



FAU Authors / FAU Editors

de Baets, Kenneth Dr.
Lehrstuhl für Paläoumwelt


External institutions
Eidgenössische Technische Hochschule Zürich (ETHZ) / Swiss Federal Institute of Technology in Zurich
Universität Zürich (UZH)


How to cite

APA:
Gügel, B., de Baets, K., Jerjen, I., Schuetz, P., & Klug, C. (2017). A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis. Acta Palaeontologica Polonica, 62(2), 237-247. https://dx.doi.org/10.4202/app.00346.2017

MLA:
Gügel, Benjamin, et al. "A new subdisarticulated machaeridian from the Middle Devonian of China: Insights into taphonomy and taxonomy using X-ray microtomography and 3D-analysis." Acta Palaeontologica Polonica 62.2 (2017): 237-247.

BibTeX: 

Last updated on 2018-30-11 at 14:47