Systematics of the Miocene-Recent bryozoan genus Pentapora (Cheilostomata)

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The four existing species of the ascophoran bryozoan Pentapora Fisher, 1807 are revised, and two new fossil species are introduced: Pentapora lacryma sp. nov. from the Pliocene Coralline Crag Formation of Suffolk, and Pentapora clipeus sp. nov. from the Pliocene of Emilia, Italy. The Arctic species Pentapora boreale Kuklinski & Hayward possesses a lyrula, does not belong in Pentapora, and is a junior synonym of Raymondcia rigida (Lorenz). The morphology of the autozooids is relatively uniform within the genus, and the main distinguishing characters are those of the ovicells and, particularly, the giant avicularia that are developed sporadically in all species apart from Pentapora foliacea, popularly known as 'Ross coral'. A phylogenetic analysis based on skeletal characters returned a single shortest tree in which the three species of Pentapora from the North Atlantic (P. foliacea, Pentapora pertusa, and P. lacryma sp. nov.) form a clade crownward of the three basal species from the Mediterranean (Pentapora ottomulleriana, Pentapora fascialis, and P. clipeus sp. nov.). © 2010 The Linnean Society of London.
Original languageEnglish
Pages (from-to)17 - 39
Number of pages23
JournalZoological Journal of the Linnean Society
Issue number1
Publication statusPublished - Sep 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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