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Polychaeta source details

Vinther, J.; Rudkin, D. (2010). The first articulated specimen of Plumulites canadensis (Woodward, 1889) from the Upper Ordovician of Ontario, with a review of the anterior region of Plumulitidae (Annelida: Machaeridia). Palaeontology. 53(2): 327-334.
193232
10.1111/j.1475-4983.2010.00938.x [view]
Vinther, J.; Rudkin, D.
2010
The first articulated specimen of Plumulites canadensis (Woodward, 1889) from the Upper Ordovician of Ontario, with a review of the anterior region of Plumulitidae (Annelida: Machaeridia)
Palaeontology
53(2): 327-334
Publication
World Polychaeta Database (WPolyDb)
Articulated plumulitid machaeridians are rarely preserved intact. Here, we describe a complete specimen of Plumulites canadensis (Woodward, 1889) retaining much of the head region. The two anteriormost pairs of shell plates are quite distinct from the rest in outline, density of concentric rugae, and especially the radial ornamentation of the second pair. We demonstrate that the latter condition is present in other complete plumulitids and therefore widespread, which elucidates a larger diversity in morphology of plumulitids than realized previously.
Paleontology, Fossils, Paleobiology
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Date
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by
2014-10-09 02:25:44Z
created

 Classification

Parry et al. (2014) introduced informally a new clade, Cuniculepadida, for non-plumulitid machaeridians. These are ... [details]