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https://hdl.handle.net/1959.11/5089
Title: | The Early Cambrian trilobite family Emuellidae Pocock, 1970: Systematic position and revision of Australian species | Contributor(s): | Paterson, John R (author) ; Edgecombe, Gregory D (author) | Publication Date: | 2006 | DOI: | 10.1666/0022-3360(2006)80[496:TECTFE]2.0.CO;2 | Handle Link: | https://hdl.handle.net/1959.11/5089 | Abstract: | The family Emuellidae Pocock, 1970 was established for Emuella Pocock, 1970 and Balcoracania Pocock, 1970 from the Lower Cambrian of South Australia. Based on their peculiar trunk tagmosis, emuellids have been interpreted as the sister group of all other trilobites with dorsal facial sutures, and classified as high as the ordinal level. Cladistic analysis with a range of exemplar taxa of the Olenellina and Redlichiina instead resolves the emuellids within the Redlichiina, with tagmosis into a prothorax and opisthothorax ("telosoma") nonhomologous in olenellines and emuellids. A taxonomic revision of Australian species identifies Balcoracania flindersi as a junior subjective synonym of B. dailyi, whereas the two named species of Emuella are considered to be distinct. Balcoracania dailyi possesses up to 103 thoracic segments, the maximum number recorded in any trilobite | Publication Type: | Journal Article | Source of Publication: | Journal of Paleontology, 80(3), p. 496-513 | Publisher: | Paleontological Society | Place of Publication: | Lancaster, United States of America | ISSN: | 1937-2337 0022-3360 |
Fields of Research (FoR) 2008: | 040308 Palaeontology (incl Palynology) 060301 Animal Systematics and Taxonomy 060309 Phylogeny and Comparative Analysis |
Socio-Economic Objective (SEO) 2008: | 970104 Expanding Knowledge in the Earth Sciences 970106 Expanding Knowledge in the Biological Sciences |
Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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