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https://hdl.handle.net/1959.11/5088
Title: | The tommotiid 'Camenella reticulosa' from the early Cambrian of South Australia: Morphology, scleritome reconstruction, and phylogeny | Contributor(s): | Skovsted, Christian B (author); Balthasar, Uwe (author); Brock, Glenn A (author); Paterson, John R (author) | Publication Date: | 2009 | DOI: | 10.4202/app.2008.0082 | Handle Link: | https://hdl.handle.net/1959.11/5088 | Abstract: | The tommotiid 'Camenella reticulosa' is redescribed based on new collections of well preserved sclerites from the Arrowie Basin (Flinders Ranges), South Australia, revealing new information concerning morphology and micro-structure. The acutely pyramidal mitral sclerite is described for the first time and the sellate sclerite is shown to be coiled through up to 1.5 whorls. Based on 'Camenella', a model is proposed by which tommotiid sclerites are composed of alternating dense phosphatic, and presumably originally organic-rich, laminae. 'Camenella' is morphologically most similar to 'Lapworthella', 'Kennardia', and 'Dailyatia', and these taxa are interpreted to represent a monophyletic clade, here termed the "camenellans", within the Tommotiida. Potential reconstructions of the scleritome of Camenella are discussed and although a tubular scleritome construction was recently demonstrated for the tommotiids Eccentrotheca and Paterimitra, a bilaterally symmetrical scleritome model with the sclerites arranged symmetrically on the dorsal surface of a vagrant animal can not be ruled out. | Publication Type: | Journal Article | Source of Publication: | Acta Palaeontologica Polonica, 54(3), p. 525-540 | Publisher: | Polska Akademia Nauk, Instytut Paleobiologii | Place of Publication: | Poland | ISSN: | 1732-2421 0567-7920 |
Fields of Research (FoR) 2008: | 040308 Palaeontology (incl Palynology) 060309 Phylogeny and Comparative Analysis 060301 Animal Systematics and Taxonomy |
Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences 970104 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 |
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