Palmatolepididae

Elements of Mesotaxis asymmetrica, from Dzik (2015).

Belongs within: Spathognathodontidae.
Contains: Palmatolepis.

The Palmatolepididae are a Late Devonian group of conodonts typically possessing a sexi- or septimembrate skeletal apparatus including broad, scalelike carminiplanate Pa elements, with profusely nodose or pustulose upper surfaces and a short free blade (Sweet 1988).

<==Palmatolepididae
    |  i. s.: Tripodellus Sannemann 1955D02
    |           `--*T. flexuosus Sannemann 1955 [=T. minutus flexuosus]D02
    |         Synprioniodina Bassler 1925S88, H62
    |           `--*S. alternata Ulrich & Bassler 1926H62
    |         Palmatodella Bassler 1925S88, H62 [incl. Telumodina Cooper 1931H62]
    |           `--*P. delicatula Ulrich & Bassler 1926H62
    |--‘Polygnathus’ limitarisS88
    `--+--‘Polygnathus’ cristatusS88
       `--+--Klapperina Lane, Müller & Ziegler 1979S88
          |    |--K. disparalveaS88
          |    |--K. disparataS88
          |    `--K. disparilisS88
          `--+--PalmatolepisS88
             `--Mesotaxis Klapper & Philip 1972S88
                  |--*M. asymmetrica (Bischoff & Ziegler 1957)D02 [=Polygnathus asymmetricusD02, P. dubia asymmetricaM62]
                  |--M. bohemica (Klapper & Foster 1993)D02
                  |--M. dengleriS88
                  |--M. domanicensis (Ovnatanova 1976)D02
                  |--M. falsiovalis Sandberg et al. 1989D02
                  |--M. proversaD02
                  |--M. punctata (Hinde 1879)D02
                  `--M. simpla (Ziegler & Sandberg 1990)D02

*Type species of generic name indicated

References

[D02] Dzik, J. 2002. Emergence and collapse of the Frasnian conodont and ammonoid communities in the Holy Cross Mountains, Poland. Acta Palaeontologica Polonica 47: 565–650.

[H62] Hass, W. H. 1962. Conodonts. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt W. Miscellanea: Conodonts, Conoidal Shells of Uncertain Affinities, Worms, Trace Fossils and Problematica pp. W3–W69. Geological Society of America, and University of Kansas Press.

[M62] Müller, K. J. 1962. Taxonomy, evolution, and ecology of conodonts. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt W. Miscellanea: Conodonts, Conoidal Shells of Uncertain Affinities, Worms, Trace Fossils and Problematica pp. W83–W91. Geological Society of America, and University of Kansas Press.

[S88] Sweet, W. C. 1988. The Conodonta: Morphology, taxonomy, paleoecology, and evolutionary history of a long extinct animal phylum. Clarendon Press: Oxford.

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