Rotularia

Rotularia bognoriensis, from here.

Belongs within: Serpulidae.

Rotularia is a genus of helically coiled tubeworms known from the Upper Cretaceous to the Eocene (Howell 1962).

Caracters (from Howell 1962): Tube helically coiled, with same diameter throught most of length, ending at apertural end in restricted tube of smaller diameter; restricted portion (and occasionally part of unrestricted tube posterior to it) extending tangentially from coiled portion; posterior end of tube usually attached to substratum; outer surface of tube smooth or concentrically wrinkled; one or two longitudinal keels occasionally present.

<==Rotularia Defrance 1827H62 (see below for synonymy)
    |--*R. spirulaea (Lamarck 1818) [=Serpula spirulaea]H62
    |--R. australis Cox 1953B59
    |--R. bognoriensisB59
    |--R. chathamensis Boreham 1959B59
    |--R. concava (Sowerby 1813)B59
    |--R. damesi (Noetling 1885)B59
    |--R. discoideumB59
    |--R. fallaxB59
    |--R. kitchini Bonarelli & Nagera 1921B59
    |--R. leptostomaB59
    |--R. lituola (Leymerie 1846)B59
    `--R. ornataS98

Rotularia Defrance 1827 non Sternb. 1825 (ICBN)H62 [incl. Moerchia Mayer 1860 non Martens 1860B59, Tubulostium Stoliczka 1869H62]

*Type species of generic name indicated

References

[B59] Boreham, A. U. E. 1959. Cretaceous fossils from the Chatham Islands. Transactions of the Royal Society of New Zealand 86 (1): 119–125.

[H62] Howell, B. F. 1962. Worms. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt W. Miscellanea: Conodonts, Conoidal Shells of Uncertain Affinities, Worms, Trace Fossils and Problematica pp. W144–W177. Geological Society of America, and University of Kansas Press.

[S98] Stilwell, J. D. 1998. Late Cretaceous Mollusca from the Chatham Islands, New Zealand. Alcheringa 22 (1): 29–85.

Leave a comment

Your email address will not be published. Required fields are marked *