After Janvier, 1997, and White, 2003
<==o †Cynthaspidiformes |?-o Corvaspidae Dineley, 1955 [Corvaspidiformes] | |--o †Corvaspis Woodward, 1934 | | |-- †C. kingi Woodward, 1934 | | |-- †C. graticulata Dineley, 1953 | | `-- †C. karatajuteae Tarlo, 1965 | `--o †Corveolepis Blieck & Karatajüte-Talimaa, 2001 [non Corveoaspis Halstead, 1993] | |-- †C. arctica (Loeffler & Dineley, 1976) [Corvaspis arctica Loeffler & Dineley, 1976] [type] | |-- †C. elgae Blieck & Karatajüte-Talimaa, 2001 | |?- †C.? graniculata (Dineley, 1955) | `?- †C. sp. [Corvaspis kingi auct. from Spitsbergen (Blieck & Karatajüte-Talimaa, 2001)] `--+--o †Amphiaspida [Amphiaspidae sensu lato] | |?- †Gabreyaspis | |?- †Gunaspis | |?- †Sanidaspis | |--o †Ctenaspis | | |-- C. dentata Kiaer 1930 | | |-- C. cancellata Kiaer, 1930 | | |-- C. kiaeri Zych, 1931 | | |-- C. obruchevi Dineley, 1976 | | |-- C. ruselli Dineley, 1976 | | `-- C. ornata Dineley, 1976 | `--+--o †Amphiaspidoidei | | |-- †Amphiaspis [Amphiaspidae] | | |-- †Angraspis | | |-- †Edaphaspis | | |-- †Gabreyaspis | | |-- †Kureykaspis | | |-- †Olbiaspis | | |-- †Pelaspis | | |-- †Prosarctaspis | | `-- †Tareyaspis | `--+--o †Hibernaspidoidei | | |-- †Aphataspis | | |-- †Eglonaspis | | |-- †Empedaspis inermis Novitskaya | | |-- †Gerronaspis | | |-- †Hibernaspis | | |-- †Lecanaspis | | |-- †Pelurgaspis | | `-- †Putoranaspis | `--o Siberiaspidoidei | |-- †Argyraspis | |-- †Dotaspis | |-- †Litotaspis | |-- †Siberiaspis [Siberiaspidae] | `-- †Tuxeraspis `--o †Cynthaspida `--o †Cyathaspididae |?- †Alainaspis |?- †Americaspis [Palaeaspis] |?- †Archegonaspis [Eoarchegonaspis; Lauaspis] |?- †Ariaspis |?- †Boothiaspis |?- †Davelaspis |?- †Dikenaspis |?- †Homalaspidella [Homalaspis; Homaspis] |?- †Liliaspis |?- †Listraspis |?-o †Pionaspis | `-- †P. amplissima Dineley & Loeffler, 1979 |?- †Ptomaspis |?- †Seretaspis |?- †Steinaspis |?- †Vernonaspis [?Anatiftopsis; Eoarchegonaspis] |--o †Ctenaspidinae | `-- †Ctenaspis [Bothriaspis] |--o †Cyathaspidinae | `-- †Cyathaspis [Diplaspis] |--o †Irregulareaspidinae | |--o †Dinaspidella [Dinaspis] | | `-- †D. elizabethae Blieck & Heintz, 1983 | |--o †Irregulareaspis [Dictyaspidella; Dictaspis] | | `-- †I. hoeli | `--o †Nahanniaspis | `-- †N. mackenziei Dineley & Loeffler, 1979 `--o †Poraspidinae |-- †Allocryptaspis [Cryptaspis] |--o †Anglaspis [Fraenkelaspis] | `-- †A. insignis |-- †Torpedaspis elongata Broad & Dineley, 1973 `--o †Poraspis [Holaspis] |-- †P. heintzae Elliott, Loeffler & Liu, 1998 |-- †P. cracens Elliott, Loeffler & Liu, 1998 |-- †P. thules Elliott, Loeffler & Liu, 1998 |-- †P. parmula Elliott, Loeffler & Liu, 1998 |-- †P. sericea |-- †P. polaris Kiaer & Heintz, 1935 |-- †P. sp. indet. [Dineley & Loeffler, 1976] `-- †P. cylindrica
Reference(s):
- Adrian, J. M. & Wilson, M. V. H., 1994: Early Devonian cephalaspids (Vertebrata: Osteostraci: Cornuata) from the southern Mackenzie Mountains, NorthWest Territories, Canada.
–Journal of Vertebrate Paleontology: Vol. 14, #3, pp. 301-319 - Blieck, A. R. M. & Karatajüte-Talimaa, V. N., 2001: New corvaspids from the Lochkovian (Lower Devonian) of Severnaya Zemlya, Russia (Vertebrata: Pterapidomorphi: Heterostraci).
–Journal of Vertebrate Paleontology: Vol. 21, #4, pp. 639-650 - Blieck, A. R. M., Karatajute-Talimaa, V. N. & Mark-Kurik, E., 2002: Upper Silurian and Devonian heterostracan pteraspidomorphs (Vertebrata) from Severnaya Zemlya (Russia): a preliminary report with biogeographical and biostratigraphical implications.
–Geodiversitas: Vol. 24, #4, pp. 805-820 - 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. - Elliott, D. K., Loeffler, E. J. & Liu, Y., 1998: New species of the cyathaspidid Poraspis (Agnatha: Heterostraci) from the Late Silurian and Early Devonian of Northwest Territories Canada.
–Journal of Paleontology: Vol. 72, #2, pp. 360-370 - Janvier , P., 1997: Vertebrata - Animals with backbones.
–iNet : The Tree of Life Project; http://tolweb.org/tree?group=Vertebrata&contgroup=Craniata - Frickhinger, K. A., 1995: Fossil Atlas - Fishes.
–Mergus, Publishers for Natural History and Pet Books, Hans A.Baensch, Malle, Germany, 1-1088 - Lundberg, J. G., 1995-1997: Chordata
–iNet: The Tree of Life Project: http://tolweb.org/tree?group=Chordata&contgroup=Deuterostomia - Long, J. A., 1995: The Rise of Fishes: 500 million years of evolution.
–Johns Hopkins University Press, Baltimore & London, pp. 1-223 - Nelson, J. S., 1994: Fishes of the world.
–John Wiley & Sons Inc., New York, 1994, xx-600 - Soehn, K. L. & Wilson, M. V. H., 1990: A complete, articulated heterostracan from Wenlockian (Silurian) beds of the Delorme Group, Mackenzie Mountains, Northwest Territories, Canada.
–Journal of Vertebrate Paleontology: Vol. 10, #4, pp. 405-419 - White, A. T., 2003: Pteraspidomorphi: Amphiaspidida
–iNet: The Paleos: http://www.palaeos.com/Vertebrates/Units/040Pteraspidomorphi/040.520.html