Foraminifera taxon details
Gerochammina Neagu, 1990 †
738105 (urn:lsid:marinespecies.org:taxname:738105)
accepted
Genus
Gerochammina stanislawi Neagu, 1990 † (type by original designation)
marine, brackish, fresh, terrestrial
fossil only
feminine
Neagu, T. (1990). Gerochammina n.gen. and related genera from the Upper Cretaceous flysch-type benthic foraminiferal fauna, Eastern Carpathians-Romania. In: Hemleben, C.; Kaminski, M.A.; Kuhnt, W.; Scott, D.B. (Editors), Paleoecology, Biostratigraphy, Paleoceanography and Taxonomy of Agglutinated Foraminifera. <em>NATO ASI Series C.</em> 245-265., available online at https://doi.org/10.1007/978-94-011-3350-0_10
page(s): p. 252 [details] Available for editors
[request]
page(s): p. 252 [details] Available for editors
[request]
Description Test cylindroconical with the early stage acute to rounded conical, chambers initially trochospiral, later high...
Description Test cylindroconical with the early stage acute to rounded conical, chambers initially trochospiral, later high trochospiral with number of chambers per whorl decreasing until the final biserial stage. Occasionally the biserial adult stage is slightly twisted and may be two to three times longer than the initial trochospiral stage. In some specimens the biserial stage is poorly developed giving the test a tapered shape. Wall medium to finely agglutinated, noncanaliculate, with a large quantity of siliceous cement, transparent in immersion, with simple chamber interiors. Aperture circular, subterminal, on the inner side of the apertural face of the last chamber, with a short collar, extending to the interior as a slightly arcuate apertural tube which forms the inner connections of the chambers. In immersion these tubes display the high trochospiral chamber arrangement in the early whorls. Upper Cretaceous; Romania, Poland. (Kaminski (2000)) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Gerochammina Neagu, 1990 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=738105 on 2026-10-08
Date
action
by
original description
Neagu, T. (1990). Gerochammina n.gen. and related genera from the Upper Cretaceous flysch-type benthic foraminiferal fauna, Eastern Carpathians-Romania. In: Hemleben, C.; Kaminski, M.A.; Kuhnt, W.; Scott, D.B. (Editors), Paleoecology, Biostratigraphy, Paleoceanography and Taxonomy of Agglutinated Foraminifera. <em>NATO ASI Series C.</em> 245-265., available online at https://doi.org/10.1007/978-94-011-3350-0_10
page(s): p. 252 [details] Available for editors [request]
page(s): p. 252 [details] Available for editors
[request]From editor or global species database
Description Test cylindroconical with the early stage acute to rounded conical, chambers initially trochospiral, later high trochospiral with number of chambers per whorl decreasing until the final biserial stage. Occasionally the biserial adult stage is slightly twisted and may be two to three times longer than the initial trochospiral stage. In some specimens the biserial stage is poorly developed giving the test a tapered shape. Wall medium to finely agglutinated, noncanaliculate, with a large quantity of siliceous cement, transparent in immersion, with simple chamber interiors. Aperture circular, subterminal, on the inner side of the apertural face of the last chamber, with a short collar, extending to the interior as a slightly arcuate apertural tube which forms the inner connections of the chambers. In immersion these tubes display the high trochospiral chamber arrangement in the early whorls. Upper Cretaceous; Romania, Poland. (Kaminski (2000)) [details]
From editor or global species database
Image from typetaxon