Acanthohoplites aschiltaensis, from Wright et al. (1996).

Belongs within: Ancyloceratidae.

The Parahoplitidae are a Lower Cretaceous (Upper Aptian to Lower Albian) lineage of moderately involute ammonites (Wright et al. 1996).

    |  i. s.: Procolombiceras Sharikadze 1979WCH96
    |           `--*P. aptum Sharikadze 1979WCH96
    |    |--Quitmanites Scott 1940WCH96
    |    |    `--Q. ceratitosus Scott 1940WCH96
    |    |--Kazanskyella Stoyanow 1949 [incl. Sinzowiella Stoyanow 1949]WCH96
    |    |    |--*K. arizonica Stoyanow 1949WCH96
    |    |    `--*Sinzowiella’ spathi Stoyanow 1949WCH96
    |    `--Parahoplites Anthula 1899 [incl. Stoyanowiceras Etayo Serna 1979]WCH96
    |         |--*P. melchioris Anthula 1899WCH96
    |         |--P. nutfieldiensisWCH96
    |         |--‘Ammonites’ treffryanus Karsten 1858 [=*Stoyanowiceras treffryanum]WCH96
    |         `--P. weissiP93
    `--Acanthohoplitinae [Colombiceratinae]WCH96
         |--Nolaniceras Casey 1961WCH96
         |    `--*N. nolani (Seunes 1887) [=Hoplites nolani]WCH96
         |--Rhytidoplites Scott 1940WCH96
         |    `--*R. robertsi Scott 1940WCH96
         |--Penaceras Cantu-Chapa 1963 [=Pegnaceras Etayo Serna 1979]WCH96
         |    `--*P. rursiradiatus (Humphrey 1949) [=Hypacanthoplites rursiradiatus]WCH96
         |--Gargasiceras Casey 1954WCH96
         |    |--*G. (Gargasiceras) gargasense (Orbigny 1841) [=Ammonites gargasensis]WCH96
         |    `--G. (Pseudogargasiceras Collignon 1962)WCH96
         |         `--G. (*P.) enigmaticum Collignon 1962WCH96
         |--Colombiceras Spath 1923WCH96
         |    |--*C. (Colombiceras) crassicostatum (Orbigny 1840) [=Ammonites crassicostatus]WCH96
         |    `--C. (Egoianiceras Avram 1974) [incl. Riedelites Etayo Serna 1979]WCH96
         |         |--C. (*E.) angulatum Egoian 1969 [=C. crassicostatum angulatum]WCH96
         |         `--*Riedelites’ esthersernae Etayo Serna 1979WCH96
         |--Hypacanthoplites Spath 1923 [incl. Cuchillites Scott 1940, Sinzowites Glazunova 1949]WCH96
         |    |--*H. plesiotypicus (Fritel 1906) [=Acanthoceras milletianum var. plesiotypica]WCH96
         |    |--H. clavatusWK81
         |    |--*Cuchillites’ evolutus Scott 1940WCH96
         |    |--H. jacobi (Collet 1907) [=Parahoplites jacobi, *Sinzowites jacobi]WCH96
         |    `--H. milletianusP93
         `--Acanthohoplites Sinzow 1907 (see below for synonymy)WCH96
              |--*A. aschiltaensis (Anthula 1899) [=Parahoplites aschiltaensis]WCH96
              |--*Chaschupseceras’ abchasicum Kvantaliani 1968WCH96
              |--‘Parahoplites’ abichi Anthula 1899 [=*Protacanthoplites abichi]WCH96
              |--A. nolaniWCH96
              `--A. reesideiK79

Acanthohoplites Sinzow 1907 [=Acanthoplites Douvillé 1912; incl. Chaschupseceras Kvantaliani 1968, Protacanthoplites Tovbina 1970]WCH96

*Type species of generic name indicated


[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).

[P93] Page, K. N. 1993. Mollusca: Cephalopoda (Ammonoidea: Phylloceratina, Lytoceratina, Ammonitina and Ancyloceratina). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 213–227. Chapman & Hall: London.

[WK81] Wiedmann, J., & J. Kullmann. 1981. Ammonoid sutures in ontogeny and phylogeny. In: House, M. R., & J. R. Senior (eds) The Ammonoidea: The evolution, classification, mode of life and geological usefulness of a major fossil group pp. 215–255. Academic Press.

[WCH96] Wright, C. W., J. H. Calloman & M. K. Howarth. 1996. Treatise on Invertebrate Paleontology pt L. Mollusca 4, revised vol. 4. Cretaceous Ammonoidea. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

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