Aphelaeceras Hyatt, 1884

Korn, Dieter & Bockwinkel, Jürgen, 2022, Early Carboniferous nautiloids from the Central Sahara, southern Algeria, European Journal of Taxonomy 831, pp. 67-108 : 97

publication ID	https://doi.org/ 10.5852/ejt.2022.831.1871
publication LSID	lsid:zoobank.org:pub:EAA2EAE2-DA8B-4516-B332-CB8423B8EEAA
DOI	https://doi.org/10.5281/zenodo.6885232
persistent identifier	https://treatment.plazi.org/id/9327592F-F434-194C-FD9C-1F44FACD52D4
treatment provided by	Felipe
scientific name	Aphelaeceras Hyatt, 1884
status

Treatment

Genus Aphelaeceras Hyatt, 1884

Type species

Nautilus (Discites) disciformis Meek & Worthen, 1873 ; subsequent designation by Miller & Garner (1953).

Diagnosis

Genus of the family Trigonoceratidae with subevolute to evolute conch; whorls slightly impressed; whorl profile compressed, venter concave and bordered by an angular ventrolateral shoulder, flanks convex, convergent; umbilical margin rounded or subangular. Suture line with shallow external and lateral lobes. Siphuncle small with subcentral position (after Kummel 1964; emended).

Included species

Nautilus (Discites) disciformis Meek & Worthen, 1873 , Illinois; Nautilus (Discites) mutabilis M’Coy, 1844 , Ireland; Nautilus (Discites) trochlea M’Coy, 1844 , Ireland; Aphelaeceras arkansanum Gordon, 1965 , Arkansas; Nautilus difficilis de Koninck, 1878 , Belgium; Nautilus discoideus de Koninck, 1878 , Belgium; Nautilus exaratus de Koninck, 1878 , Belgium; Discitoceras discus Sowerby, 1813 , Ireland; Discites Hibernicus Foord & Crick, 1893, Ireland; Aphelaeceras azzelmattiense sp. nov., Algeria.