MolluscaBase name details
Trochactaeon (Neocylindrites) Kollmann, 1967 †
1741128 (urn:lsid:marinespecies.org:taxname:1741128)
alternative representation
Subgenus
Trochactaeon barremicus Sayn, 1932 † accepted as Trochactaeon (Neocylindrites) boutillieri (Cossmann, 1895) † represented as Trochactaeon boutillieri (Cossmann, 1895) † (type by original designation)
Neocylindrites Kollmann, 1967 † · unaccepted > superseded rank
Palaeotrochacteon Hacobjan, 1972 † · unaccepted > junior subjective synonym
- Species Trochactaeon (Neocylindrites) barremicus Sayn, 1932 † accepted as Trochactaeon (Neocylindrites) boutillieri (Cossmann, 1895) † represented as Trochactaeon boutillieri (Cossmann, 1895) † (unaccepted > junior subjective synonym)
- Species Trochactaeon (Neocylindrites) abbreviatus (Conrad, 1852) † represented as Trochactaeon abbreviatus (Conrad, 1852) †
- Species Trochactaeon (Neocylindrites) absalonis (Fraas, 1867) † represented as Trochactaeon absalonis (Fraas, 1867) †
- Species Trochactaeon (Neocylindrites) angustatus Pchelintsev, 1953 † represented as Trochactaeon angustatus Pchelintsev, 1953 †
- Species Trochactaeon (Neocylindrites) baconicus Benkő-Czabalay, 1962 † represented as Trochactaeon baconicus Benkő-Czabalay, 1962 †
- Species Trochactaeon (Neocylindrites) baylei (Leymerie) † represented as Trochactaeon baylei (Leymerie) †
- Species Trochactaeon (Neocylindrites) belgicus (Cossmann, 1895) † represented as Trochactaeon belgicus (Cossmann, 1895) †
- Species Trochactaeon (Neocylindrites) boutillieri (Cossmann, 1895) † represented as Trochactaeon boutillieri (Cossmann, 1895) †
- Species Trochactaeon (Neocylindrites) briarti Geinitz, 1874 † represented as Trochactaeon briarti Geinitz, 1874 †
- Species Trochactaeon (Neocylindrites) cordeiroi (Choffat, 1888) † represented as Trochactaeon cordeiroi (Choffat, 1888) †
- Species Trochactaeon (Neocylindrites) crisminensis Choffat, 1901 † represented as Trochactaeon crisminensis Choffat, 1901 †
- Species Trochactaeon (Neocylindrites) cumminsi Stanton, 1947 † represented as Trochactaeon cumminsi Stanton, 1947 †
- Species Trochactaeon (Neocylindrites) gosaviensis Kollmann, 1967 † represented as Trochactaeon gosaviensis Kollmann, 1967 †
- Species Trochactaeon (Neocylindrites) gradatus Kollmann, 1967 † represented as Trochactaeon gradatus Kollmann, 1967 †
- Species Trochactaeon (Neocylindrites) minutus Stoliczka, 1868 † represented as Trochactaeon minutus Stoliczka, 1868 †
- Species Trochactaeon (Neocylindrites) nelsoni Sohl & Kollmann, 1985 † represented as Trochactaeon nelsoni Sohl & Kollmann, 1985 †
- Species Trochactaeon (Neocylindrites) oliviformis (Coquand, 1865) † represented as Trochactaeon oliviformis (Coquand, 1865) †
- Species Trochactaeon (Neocylindrites) punctatus (Maldonado-Koerdell, 1950) † represented as Trochactaeon punctatus (Maldonado-Koerdell, 1950) †
marine, brackish, fresh, terrestrial
fossil only
Kollmann, H.A. (1967). Die Gattung <i>Trochactaeon</i> in der ostalpinen Oberkreide. Zur Phylogenie der Actaeonellidae. <em>Annalen des Naturhistorischen Museum Wien.</em> 71: 199-261.
page(s): 215 [details] Available for editors
[request]
Sayn, G. (1932). Description de la faune de l'Urgonien de Barcelonne (Drôme). <em>Travaux du Laboratoire de Géologie de la Faculté des Sciences de Lyon.</em> 18(15): 1-70, 4 pls., available online at https://www.persee.fr/doc/geoly_0371-912x_1932_mon_18_15
page(s): 10 [details] Available for editors [request]
page(s): 215 [details] Available for editors
[request]Sayn, G. (1932). Description de la faune de l'Urgonien de Barcelonne (Drôme). <em>Travaux du Laboratoire de Géologie de la Faculté des Sciences de Lyon.</em> 18(15): 1-70, 4 pls., available online at https://www.persee.fr/doc/geoly_0371-912x_1932_mon_18_15
page(s): 10 [details] Available for editors
[request]
Original description The subgenus name was first mentioned by Sayn (1932), but it is not available from that work, since Sayn did not give a...
Original description The subgenus name was first mentioned by Sayn (1932), but it is not available from that work, since Sayn did not give a type species. Kollmann (1967, p. 215), who actually realized that Sayn's name was formally unavailable but still retained the name as described by Sayn, provided a description and a type species and made the name available. [details]
MolluscaBase eds. (2025). MolluscaBase. Trochactaeon (Neocylindrites) Kollmann, 1967 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1741128 on 2025-09-11
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original description
Kollmann, H.A. (1967). Die Gattung <i>Trochactaeon</i> in der ostalpinen Oberkreide. Zur Phylogenie der Actaeonellidae. <em>Annalen des Naturhistorischen Museum Wien.</em> 71: 199-261.
page(s): 215 [details] Available for editors [request]
basis of record Sohl, N. F.; Kollmann, H. A. (1985). Cretaceous actaeonellid gastropods from the western hemisphere. <em>United States Geological Survey Professional Paper.</em> 1304: 1-104. [details] Available for editors [request]
additional source Hoşgör, I.; Yılmaz, I. Ö.; Özer, S. (2023). The heterobranch subgenus <i>Trochactaeon</i> (<i>Trochactaeon</i>) in the Campanian (Late Cretaceous) of the northern Arabian Platform and its paleoenvironmental and paleobiogeographic implications. <em>Journal of Paleontology.</em> 97(4): 853-864., available online at https://doi.org/10.1017/jpa.2023.46 [details] Available for editors [request]
original description (unavailable nomenclaturally) Sayn, G. (1932). Description de la faune de l'Urgonien de Barcelonne (Drôme). <em>Travaux du Laboratoire de Géologie de la Faculté des Sciences de Lyon.</em> 18(15): 1-70, 4 pls., available online at https://www.persee.fr/doc/geoly_0371-912x_1932_mon_18_15
page(s): 10 [details] Available for editors [request]
page(s): 215 [details] Available for editors
[request]basis of record Sohl, N. F.; Kollmann, H. A. (1985). Cretaceous actaeonellid gastropods from the western hemisphere. <em>United States Geological Survey Professional Paper.</em> 1304: 1-104. [details] Available for editors
[request]additional source Hoşgör, I.; Yılmaz, I. Ö.; Özer, S. (2023). The heterobranch subgenus <i>Trochactaeon</i> (<i>Trochactaeon</i>) in the Campanian (Late Cretaceous) of the northern Arabian Platform and its paleoenvironmental and paleobiogeographic implications. <em>Journal of Paleontology.</em> 97(4): 853-864., available online at https://doi.org/10.1017/jpa.2023.46 [details] Available for editors
[request]original description (unavailable nomenclaturally) Sayn, G. (1932). Description de la faune de l'Urgonien de Barcelonne (Drôme). <em>Travaux du Laboratoire de Géologie de la Faculté des Sciences de Lyon.</em> 18(15): 1-70, 4 pls., available online at https://www.persee.fr/doc/geoly_0371-912x_1932_mon_18_15
page(s): 10 [details] Available for editors
[request]From editor or global species database
Original description The subgenus name was first mentioned by Sayn (1932), but it is not available from that work, since Sayn did not give a type species. Kollmann (1967, p. 215), who actually realized that Sayn's name was formally unavailable but still retained the name as described by Sayn, provided a description and a type species and made the name available. [details]
