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Lampazarorthis brachymyaria

Rhynchonellata - Orthida - Nanorthidae

Nanorthis brachymyaria was named by Benedetto and Carrasco (2002) [Benedetto in Benedetto & Carrasco 2002]. Its type specimen is CEGH–UNC 20431, a shell (External and internal molds of ventral valve), and it is a 3D body fossil. Its type locality is Ch-6b. Quebrada Chalala, Purmamarca, which is in a Tremadoc offshore mudstone in the Coquena Formation of Argentina.

It was recombined as Lampazarorthis brachymyaria by Benedetto and Muñoz (2017).

Synonymy list
YearName and author
2002Nanorthis brachymyaria Benedetto and Carrasco pp. 652 - 654 figs. 4.1-12
2017Lampazarorthis brachymyaria Benedetto and Muñoz p. 53

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EubilateriaAx 1987
phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyPlectorthoideaSchuchert and Le Vene 1929
familyNanorthidaeHavlicek 1977

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.

J. L. Benedetto and P. A. Carrasco 2002A species of Nanorthis relatively small; ventral valve moderately to strongly convex, ornamented by eight to nine subangular costellae per 2 mm. Dental plates very short. Ventral muscle field proportionally wide and short. Vascula media widely separated, divergent, branching into narrow, posteroloterally directed trunks and medially directed branches. Notothyrial platform low, subtriangular. Cardinal process absent. Brachiophores delicate, divergent anteriorly at about 70–75°. Dorsal muscle field indistinct.