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Title: A 3D anatomical atlas of appendage musculature in the chelicerate arthropod Limulus polyphemus
Contributor(s): Bicknell, Russell D C  (author)orcid ; Klinkhamer, Ada J  (author); Flavel, Richard J  (author)orcid ; Wroe, Stephen  (author)orcid ; Paterson, John R  (author)orcid 
Publication Date: 2018-02-14
Open Access: Yes
DOI: 10.1371/journal.pone.0191400
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Abstract: Limulus polyphemus, an archetypal chelicerate taxon, has interested both biological and paleontological researchers due to its unique suite of anatomical features and as a useful modern analogue for fossil arthropod groups. To assist the study and documentation of this iconic taxon, we present a 3D atlas on the appendage musculature, with specific focus on the muscles of the cephalothoracic appendages. As L. polyphemus appendage musculature has been the focus of extensive study, depicting the muscles in 3D will facilitate a more complete understanding thereof for future researchers. A large museum specimen was CT scanned to illustrate the major exoskeletal features of L. polyphemus. Micro-CT scans of iodine-stained appendages from fresh, non-museum specimens were digitally dissected to interactively depict appendage sections and muscles. This study has revealed the presence of two new muscles: one within the pushing leg, located dorsally relative to all other patella muscles, and the other within the male pedipalp, located in the modified tibiotarsus. This atlas increases accessibility to important internal and external morphological features of L. polyphemus and reduces the need for destructive fresh tissue dissection of specimens. Scanning, digitally dissecting, and documenting taxa in 3D is a pivotal step towards creating permanent digital records of life on Earth.
Publication Type: Journal Article
Grant Details: ARC/FT12010077
Source of Publication: PLoS ONE, 13(2), p. 1-23
Publisher: Public Library of Science
Place of Publication: United States of America
ISSN: 1932-6203
Field of Research (FOR): 040308 Palaeontology (incl. Palynology)
Socio-Economic Outcome Codes: 970104 Expanding Knowledge in the Earth Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science
School of Science and Technology

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