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Wronascolex spinosus

Palaeoscolecida - Cricocosmida - Palaeoscolecidae

Palaeoscolex spinosus was named by Ivantsov and Wrona (2004). Its type specimen is PIN 4349/851 and is not a trace fossil.

It was recombined as Wronascolex spinosus by García-Bellido et al. (2013).

Synonymy list
YearName and author
2004Palaeoscolex spinosus Ivantsov and Wrona pp. 10-12 figs. text-figs 5, 6, 11B
2013Wronascolex spinosus García-Bellido et al.

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EubilateriaAx 1987
classPalaeoscolecidaConway-Morris and Robison 1986
familyPalaeoscolecidaeWhittard 1953
genusWronascolexIvantsov and Zhuravlev 2005

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

A. Y. Ivantsov and R. Wrona 2004Cylindrical cuticle of worm with closely spaced annulation. Intercalations lacking. Annuli with one or two rows of plates widely arranged, and no platelets nor microplates. Plates vary in size and ornamentation, circular to oval-shaped, with strongly convex upper surface covered by 4-10 (usually 6) sharp cones, often protruding as spines arranged in circle or rows, sometimes also with a central node. Plates with spiny ornament are grouped on the ventral side of the trunk.