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Yochelsonospira monensis

Gastropoda - Lophospiridae

Taxonomy
Mourlonia monensis was named by Weir (1925). Its type specimen is Begg Collection Specimen, a shell, and it is a 3D body fossil. Its type locality is Balladoole, which is in an Asbian carbonate limestone in the Balladoole Formation of the United Kingdom.

It was recombined as Worthenia monensis by Thomas (1940); it was recombined as Yochelsonospira monensis by Wagner (2017).

Synonymy list
YearName and author
1925Mourlonia monensis Weir pp. 434 - 435 figs. pl. 19 f. 1-2
1940Worthenia monensis Thomas p. 45
2017Yochelsonospira monensis Wagner p. S7786

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classGastropodaCuvier 1797
superfamilyTrochonematoidea()
familyLophospiridae
genusYochelsonospira()
speciesmonensis()

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
J. Weir 1925Shell trochoid; spire of five slightly convex whorls; suture sharply incised; sinus-band peripheral in body whorl, coincident with suture in earlier whorls, and limited above and below by small but well-defined keels; ornamentation of fine spiral (transcrescent) and axial (concrescent) ribs, intersecting to form a beaded reticulation; below the suture there is an impressed area, consisting of two spiral ribs, rather larger than the others, but beaded in the same way by intersection with the concrescent elements of the ornamentation; band ornamented with transverse,, sickle-shaped ribs.