After Carroll, 1988, Long, 1995, and Blom, Clack, Ahlberg & Friedman, 2007
Famil y-level taxonomy of all dipnomorphs
<==o †Porolepiformes Jarvik, 1942 |--o †Porolepidae | |-- †Heimenia ensis Ørvik, 1969; E.-M.Dev. Spits. EAs. | `--o †Porolepis [Gyrolepis] L.-M. Dev. Eu. Spitz. NAs. | |-- †P. brevis Jarvik 1937 | |-- †P. elongata Jarvik 1937 | |-- †P. posnaniensis (Kade 1858) | |-- †P. siegenensis Gross 1935 | `-- †P. spitsbergensis Jarvik 1937 `--o †Holoptychioidea Owen, 1860 sensu `--o †Holoptychidae Owen, 1860 |?- †Ventalepis ketleriensis Schultze, 1980 |?- †Duffichthys mirabilis Ahlberg 1992 |--+?- †Quebecius quebecensis Whiteaves, 1889 [Quebecius quebecius; Quebecius williamsi Schultze 1973] U. Dev. ENA. | `--o †Glyptolepis [?Hamodus; Plyphlepis; ?Sclerolepis] M.Dev. Spits.Gr. M.-L.Dev. Eu. | |-- †G. leptopterus Agassiz, 1844 | |-- †G. groenlandica Jarvik, 1972 | |-- †G. baltica Gross | `-- †G. paucidens |--o †Holoptychius Agassiz, 1839 [?Apedodus; ?Apendulus; ?Dendrodus; Holoptychus (lapsus calami?); Lamnodus] M.Dev. Carb. Eu. NAs. NAm. Gr. Aust. Ant. | |-- †H. americanus Leidy, 1843 | |-- †H. flemingi Agassiz, 1844 | |-- †H. giganteus Agassiz 1839 | |-- †H. halli Newberry, 1889 | |-- †H. hopkinsii M'Coy, 1844 | |-- †H. nobilissimus (Agassiz, 1835) [type] | `-- †H. quebecensis [=? Quebecius quebecensis Whiteaves, 1889] |--o †Laccognathus Gross, 1941; L.Dev. EEu. Gr. | |-- †L. panderi Gross, 1941 | |-- †L. grossi Vorobyeva, 2006 | |-- †L. embryi Downs, Daeschler, Jenkins, & Shubin, 2011 [Laccognathus sp. Daeschler et al., 2003, 2005; Laccognathus sp. Vorobyeva, 2006; Laccognathus sp. Downs et al., 2007] | `?- †L. sp.(2) (Vorobyeva, 2006) `-- †Pseudosauripterus anglicus (Woodward 1891)
Reference(s):
- Ahlberg, P. E., 1991: A re-examination of sarcopterygian interrelationships, with special reference to the Porolepiformes.
–Zoological Journal of the Linnean Society: Vol. 103, #3, pp. 241-287 [doi: 10.1111/j.1096-3642.1991.tb00905.x] - Ahlberg, P. E. & Johanson, Z. 1998: Osteolepiforms and the ancestry of tetrapods.
–Nature: Vol. 395, 22 October, pp. 792-794 - Blom, H., Clack, J. A., Ahlberg, P. E. & Friedman, M., 2007: Devonian vertebrates from East Greenland: a review of faunal composition and distribution.
–Geodiversitas: Vol. 29, #1, pp. 119-141 - Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - Carroll, R. L., 1988: Appendix. 594-648
in Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - Downs, J. P., Daeschler, E. B., Jenkins, F. A. & Shubin, N. H., 2011: A New Species of Laccognathus (Sarcopterygii, Porolepiformes) from the Late Devonian of Ellesmere Island, Nunavut, Canada.
–Journal of Vertebrate Paleontology: Vol. 31, #5, pp. 981-996 [doi: 10.1080/02724634.2011.599462] - Frickhinger, K. A., 1995: Fossil Atlas – Fishes.
–Mergus – Publishers for Natural History and Pet Books, Hans A.Baensch, Malle, Germany, 1995, pp. 1-1088 - Kemp, A., 1998: Skull structure in post-Paleozoic lungfish.
–Journal of Vertebrate Paleontology: Vol. 18, #1, pp. 43-63 - Long, J. A., 1995: The Rise of Fishes: 500 million years of evolution.
–Johns Hopkins University Press, Baltimore & London, pp. 1-223 - Schultze, H.-P. & Arsenault, M., 1987: Quebecius quebecensis (Whiteaves), a porolepiform crossopterygian (Pisces) from the Late Devonian of Quebec, Canada.
–Canadian Journal of Earth Sciences: Vol. 24, #12, pp. (2351-2361) [doi: 10.1139/e87-221] - Vorobyeva, E. I., 2006: A new species of Laccognathus (Porolepiform Crossopterygii) from the Devonian of Latvia.
–Paleontological Journal: Vol. 40, #3, pp. 312-322 [doi: 10.1134/S0031030106030129]