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Scathascolex minor

Palaeoscolecida - Cricocosmida - Palaeoscolecidae

Taxonomy
Scathascolex minor was named by Smith (2015). Its type specimen is NMNH 203006, an other, and it is a 3D body fossil.

Synonymy list
YearName and author
2015Scathascolex minor Smith p. 974 figs. Figures 1-2

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
RankNameAuthor
classPalaeoscolecidaConway-Morris and Robison 1986
orderCricocosmida
familyPalaeoscolecidaeWhittard 1953
genusScathascolex
speciesminor

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.

Diagnosis
ReferenceDiagnosis
M. R. Smith 2015Palaeoscolecid of uniform width with c. 100 annulations, each bearing c. 150 simple plates. Plates arranged in two adjacent rows on each edge of each annulation. Plates circular, of uniform size, with marginal rim and pronounced central boss; platelets not evident. Introvert armature comprising c. 28 posterior-directed introvert hooks, a ring of coronal spines, and quincun- cially arranged pharyngeal teeth. Two pairs of tail hooks symmetrically disposed about terminal anus.