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Myocaris sharpei

Rostroconchia - Ribeirioida - Technophoridae

Taxonomy
Ribeirella sharpei was named by Perner (1903) [Ribeirella Sharpei Barrande in Perner 1903]. It is not a trace fossil. Its type locality is Liben, which is in a Bohdalec marine siltstone in the Bohdalec Formation of the Czech Republic.

It was recombined as Technophorus sharpei by Pojeta and Runnegar (1976); it was recombined as Myocaris sharpei by Wagner (2017).

Synonyms
Synonymy list
YearName and author
1903Ribeirella sharpei Perner figs. pl. 49 f. 7-13
1960Technophorus stoermeri Soot-Ryen pp. 126 - 127 figs. Plate I, fig. l.
1976Technophorus sharpei Pojeta and Runnegar p. 60 figs. pl. 12 f. 18-19; pl. 13 f. 1-14
2017Myocaris sharpei Wagner p. S3143

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
RankNameAuthor
phylumMollusca
classRostroconchia
orderRibeirioida
familyTechnophoridae
genusMyocaris
speciessharpei()

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
H. Soot-Ryen 1960 (Technophorus stoermeri)Carapace small, compressed, elongate, inequilateral, with a distinct long rostrum. Anterior margin (missing) apparently evenly rounded, ventral margin convex, dorsal margin forms two straight parts with a slight curvature inbetween. Umbonal clavicles not seen. Umbones (missing) in the anterior :X., or 1/5, a distinct keel or fold of the carapace starts near the umbo and runs in a slight curve to the posteroventral margin, where it broadens. The upper part seems to have been tom away and the lighter stone beneath forms a greyish white slit through the surface. There are some indefinite tubercle-like irregularities along the keel. There is a marked depression on the dorsal side of the keel and partly also on the ventral side. A second dorsal keel is seen in the middle of the posterodorsal part, especially distinct posteriorly with a slight concavity above, otherwise it slopes rather steeply to the dorsal margin. Posterior margin of the rostrum ends on the dorsal keel in an angle of 90°.

Sculpture on surface in front of keel consists of raised, concentric lines, close-set in the older part of the valve, more distant towards the margin. The interspaces are broader than the lines, of which 19 could be counted. Between the keels there are also traces of faint lines, but the dorsal slope is smooth.