Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Mesotaxis asymmetrica

Conodonta - Ozarkodinida - Palmatolepidae

Taxonomy
Polygnathus dubia asymmetrica was named by Bischoff and Ziegler (1957). It is a 3D body fossil.

It was recombined as Polygnathus asymmetrica by Ziegler and Klapper (1964); it was recombined as Polygnathus asymmetricus by Druce (1976); it was recombined as Mesotaxis asymmetricus by Ovnatanova and Kononova (2008); it was recombined as Mesotaxis asymmetrica by Ovnatanova et al. (2017).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1957Polygnathus dubia asymmetrica Bischoff and Ziegler pp. 88–89 figs. pl. 16, figs. 18, 20–22; pl. 21, fig. 3.
1964Polygnathus asymmetrica Ziegler and Klapper p. 422
1976Polygnathus asymmetricus Druce p. 180 figs. pl. 69, figs. 1–3
2008Mesotaxis asymmetricus Ovnatanova and Kononova p. 1083 figs. pl. 25, fig. 8
2017Mesotaxis asymmetrica Ovnatanova et al. p. 1060 figs. plate 10, fig. 4; Plate 13, fig. 1; Plate 22, figs. 3 and 5; Plate 28, figs. 2–4, 6–9

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumConodontophorida()
RankNameAuthor
classConodonta
orderOzarkodinidaDzik 1976
suborderOzarkodininaDzik 1976
familyPalmatolepidaeMüller 1956
genusMesotaxis
speciesasymmetrica(Bischoff and Ziegler 1957)

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.

Mesotaxis asymmetrica Bischoff and Ziegler 1957
show all | hide all
Diagnosis
ReferenceDiagnosis
N. S. Ovnatanova et al. 2017Pa element with widely oval and slightly asymmetrical platform. Anterior platform end rounded; posterior end pointed and turned down- wards. Median ridge slightly arched and reaching pos- terior end of platform. Free blade from one-sixth to one-third as long as platform. Troughs short and poorly pronounced. Platform surface uniformly covered with fine nodes. Basal cavity small, lens-shaped, symmetrical, and located in anterior third or near platform middle. Keel low and thin.