Skip to content Skip to navigation

Article: 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)

Publication: Palaeontology
Volume: 53
Part: 2
Publication Date: March 2010
Page(s): 327 334
Author(s): Jakob Vinther and David Rudkin
Addition Information

How to Cite

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). Palaeontology53, 2, 327–334.

Online Version Hosted By

Wiley Online Library
Get Article: Wiley Online Library [Pay-to-View Access] |

Abstract

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.
PalAss Go! URL: http://go.palass.org/5e0 | Twitter: Share on Twitter | Facebook: Share on Facebook | Google+: Share on Google+