Bactrognathidae

Apparatus elements of Bactrognathus, from Sweet (1988).

Belongs within: Prioniodinidae.

The Bactrognathidae are a group of conodonts known from the early Carboniferous (Sweet 1988).

<==Bactrognathidae
    |--Embsaygnathus Metcalfe 1981S88
    |    `--E. asymmetricus Metcalfe 1980AS93
    |--Scaliognathus Branson & Mehl 1941S88
    |    `--*S. anchoralis Branson & Mehl 1941H62
    |--Geniculatus Hass 1953AS93
    |    `--*G. claviger (Roundy 1926) [=Polygnathus claviger]H62
    |--Apatella Chauff & Klapper 1978AS93
    |    `--A. ziegleri Chauff & Klapper 1978AS93
    |--Doliognathus Branson & Mehl 1941S88
    |    |--*D. lata Branson & Mehl 1941H62
    |    `--D. dubiusS88
    |--Staurognathus Branson & Mehl 1941S88
    |    |--*S. cruciformis Branson & Mehl 1941H62
    |    `--S. anchorariaM62
    |--Dollymae Hass 1959S88
    |    |--*D. sagittula Hass 1959H62
    |    |--D. bouckaertiS88
    |    `--D. hassiS88
    |--Eotaphrus Pierce & Langenheim 1974S88
    |    |--E. bultynckiS88
    |    |--E. burlingtonensisS88
    |    `--E. evaeS88
    `--Bactrognathus Branson & Mehl 1941S88
         |--*B. hamata Branson & Mehl 1941H62
         |--B. anchorariusS88
         |--B. distortusS88
         |--B. excavatusS88
         `--B. minutusS88

*Type species of generic name indicated

References

[AS93] Aldridge, R. J., & M. P. Smith. 1993. Conodonta. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 563–572. Chapman & Hall: London.

[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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