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Polychaeta source details
Kimmig, Julien; LaVine, Rhiannon J.; Schiffbauer, James D.; Egenhoff, Sven O.; Shelton, Kevin L.; Leibach, Wade W. (2023). Annelids from the Cambrian (Wuliuan Stage, Miaolingian) Spence Shale Lagerstätte of northern Utah, USA. Historical Biology. Efirst: 1-11 [8 April 2023].
448885
10.1080/08912963.2023.2196685 [view]
urn:lsid:zoobank.org:pub:2C4E7ECF-2088-4810-B307-36B7FAA0B090 [view]
Kimmig, Julien; LaVine, Rhiannon J.; Schiffbauer, James D.; Egenhoff, Sven O.; Shelton, Kevin L.; Leibach, Wade W.
2023
Annelids from the Cambrian (Wuliuan Stage, Miaolingian) Spence Shale Lagerstätte of northern Utah, USA
Historical Biology
Efirst: 1-11 [8 April 2023]
Publication
World Polychaeta Database (WPolyD).
Available for editors
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The Spence Shale Member of the Langston Formation in northern Utah and southern Idaho preserves generally non-biomineralized fossil assemblages referred to as the Spence Shale Lagerstätte. The biota of this Lagerstätte is dominated by panarthropods, both biomineralized and soft-bodied examples, but also preserves diverse infaunal organisms, including species of scalidophorans, echinoderms, lobopodians, stalked filter feeders, and various problematic taxa. To date, however, only a single annelid fossil, originally assigned to Canadia sp., has been described from the Spence Shale. This lone specimen and another recently collected specimen were analysed in this study using scanning electron microscopy and energy dispersive X-ray spectrometry. The previous occurrence was reassigned to Burgessochaeta cf. B. setigera. The new fossil, however, has been identified as a novel polychaete taxon, Shaihuludia shurikeni gen. et sp. nov., characterised by the presence of fused, bladed chaetae and a wide body. The occurrence of Burgessochaeta is the first outside the Burgess Shale and its vicinity, whereas Shaihuludia shurikeni gen. et sp. nov. adds to the diversity of annelids in the middle Cambrian and highlights the diversity of the Spence Shale Lagerstätte.
America, North
Paleontology, Fossils, Paleobiology
Date action by
Burgessochaeta setigera (Walcott, 1911) † (additional source)
Shaihuludia Kimmig, LaVine, Schiffbauer, Egenhoff, Shelton & Leibach, 2023 † (original description) Shaihuludia shurikeni Kimmig, LaVine, Schiffbauer, Egenhoff, Shelton & Leibach, 2023 † (original description)
Holotype KUMIP 585569, part and counterpart of dorso-ventrally preserved almost complete specimen, geounit Utah, identified as Shaihuludia shurikeni Kimmig, LaVine, Schiffbauer, Egenhoff, Shelton & Leibach, 2023
Classification The authors place Shailuludia as a stem group Annelid fossil genus. They do not go further within Annelida, but ... [details] Diagnosis Authors: "Diagnosis of genus and species by monotypy = Soft-bodied annelid with flattened fans of fused blade-like ... [details] Etymology authors: Shaihuludia is a name taken from a modern fiction work and is modified from "Shai-Hulud: the indigenous ... [details] Etymology Shaihuludia shurikeni is named from 'shuriken' the "Japanese word for throwing star, for the overall shape of the ... [details] Type locality Cambrian Spence Shale Lagerstätte, 41.8964, -111.7118, Utah [details] |