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https://hdl.handle.net/1959.11/30378
Title: | A revision of Prolimulus woodwardi Fritsch, 1899 with comparison to other highly paedomorphic belinurids | Contributor(s): | Lustri, Lorenzo (author); Laibl, Lukáš (author); Bicknell, Russell D C (author) | Publication Date: | 2021-03-08 | Open Access: | Yes | DOI: | 10.7717/peerj.10980 | Handle Link: | https://hdl.handle.net/1959.11/30378 | Abstract: | Xiphosurida is an ingroup of marine Euchelicerata often referred to as “living fossils”. However, this oxymoronic term is inapplicable for Paleozoic and early Mesozoic forms, as during these periods the group experienced notable evolutionary radiations; particularly the diverse late Palaeozoic clade Belinurina. Despite the iconic nature of the group, select species in this clade have been left undescribed in the light of recent geometric morphometric and phylogenetic considerations and methodologies. To this end, we re-describe Prolimulus woodwardi Fritsch, 1899 using new and type specimens to reveal more details on appendage anatomy and possible ecology. Furthermore, we present geometric morphometric and phylogenetic analyses that uncover relationships between P. woodwardi and other belinurids without genal spines. Both approaches highlight that a clade containing Prolimulus Fritsch, 1899, Liomesaspis Raymond, 1944, Alanops Racheboeuf, Vannier & Anderson, 2002 and Stilpnocephalus Selden, Simonetto & Marsiglio, 2019 may exist. While we do not erect a new group to contain these genera, we note that these genera exemplify the extreme limits of the Belinurina radiation and a peak in horseshoe crab diversity and disparity. This evidence also illustrates how changes in heterochronic timing are a key evolutionary phenomenon that can drive radiations among animals. | Publication Type: | Journal Article | Source of Publication: | PeerJ, v.9, p. 1-33 | Publisher: | PeerJ, Ltd | Place of Publication: | United Kingdom | ISSN: | 2167-8359 | Fields of Research (FoR) 2008: | 040308 Palaeontology (incl. Palynology) | Fields of Research (FoR) 2020: | 370506 Palaeontology (incl. palynology) | Socio-Economic Objective (SEO) 2008: | 970104 Expanding Knowledge in the Earth Sciences | Socio-Economic Objective (SEO) 2020: | 280107 Expanding knowledge in the earth sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article School of Environmental and Rural Science School of Science and Technology |
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openpublished/ARevisionBicknell2021JournalArticle.pdf | Published version | 8.55 MB | Adobe PDF Download Adobe | View/Open |
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