Brancoceratoidea

Prolyelliceras ulrichi, from here.

Belongs within: Aptychophora.
Contains: Acanthoceratoidea.

The Brancoceratoidea is a Cretaceous group of ammonites with a more or less evolute conch bearing strong ribs.

<==Brancoceratoidea [Brancocerataceae] KK08
    |--Leymeriella [Leymeriellidae] KK08
    |    |--L. regularis K79
    |    |--L. schrammeni K79
    |    `--L. tardefurcata KK08
    `--+--Acanthoceratoidea KK08
       `--Brancoceratinae [Brancoceratidae] KK08
            |--Brancoceras Hyatt 1884 KK08, H84
            |    |--*B. ixion [=Goniatites ixion] H84
            |    |--B. alternatum Kennedy 2004 KK08
            |    |--B. lineare [=Goniatites linearis] H84
            |    |--B. ovatum [=Goniatites ovatus] H84
            |    |--B. rotatorium [=Goniatites rotatorius] H84
            |    |--B. subsulcatum [=Goniatites subsulcatus] H84
            |    |--B. sulcatum [=Goniatites sulcatus] H84
            |    |--B. umbilicatum H84
            |    `--B. ungeri [=Goniatites ungeri] H84
            `--+--Parabrancoceras Breistroffer 1951 KK08
               |    `--P. dromense KK08
               `--Prolyelliceras Spath 1930 [incl. Ralphimlayites Etayo-Serna 1979] KK08
                    |  i. s.: P. alternatum (Robert 2002) (see below for synonymy) KK08
                    |         ‘Ralphimlayites’ apuloense Etayo-Serna 1979 KK08
                    |         P. flandrini (Dubourdieu 1953) [=Lyelliceras flandrini] KK08
                    |         P. radenaci (Pervinquière 1907) [=Prionotropis radenaci] KK08
                    |--P. cotteri (Spath 1930) [=Lyelliceras cotteri] KK08
                    |--P. lobatum (Riedel 1938) KK08
                    `--+--P. prorsocurvatum (Gerhardt 1897) (see below for synonymy) KK08
                       `--+--+--Eubrancoceras aegoceratoides (Steinmann 1881) KK08
                          |  `--P. mathewsi (Knechtel 1947) [=Lyelliceras mathewsi, Ralphimlayites mathewsi] KK08
                          `--+--‘Lyelliceras’ isaclei KK08
                             `--P. ulrichi (Knechtel 1947) [=Lyelliceras ulrichi, Ralphimlayites ulrichi] KK08

Prolyelliceras alternatum (Robert 2002) [=Ralphimlayites alternatum, R. alternum Robert 2001 (n. n.)] KK08

Prolyelliceras prorsocurvatum (Gerhardt 1897) [=Acanthoceras prorsocurvatum, *Ralphimlayites prorsocurvatum; incl. *Prolyelliceras peruvianum Spath 1930] KK08

*Type species of generic name indicated

REFERENCES

[H84] Hyatt, A. 1883–1884. Genera of fossil cephalopods. Boston Soc. Nat. History, Proc. 22: 253–338.

[K79] Kauffman, E. G. 1979. Cretaceous. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A418–A487. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[KK08] Kennedy, W. J., & H. C. Klinger. 2008. Cretaceous faunas from Zululand and Natal, South Africa. The ammonite subfamily Lyelliceratinae Spath, 1921. African Natural History 4: 57–111.