Foraminifera taxon details
Triadodiscus Piller, 1983 †
721902 (urn:lsid:marinespecies.org:taxname:721902)
accepted
Genus
Trocholina (Paratrocholina) eomesozoica Oberhauser, 1957 † accepted as Involutina eomesozoica (Oberhauzer, 1957) † accepted as Triadodiscus eomesozoicus (Oberhauser, 1957) † (type by original designation)
Mesodiscus Piller, 1978 † · unaccepted (Junior homonym of Mesodiscus...)
Junior homonym of Mesodiscus Minot, 1877
marine, brackish, fresh, terrestrial
fossil only
masculine
Piller, W. E. (1983). Remarks on the suborder Involutinina Hohenegger and Piller, 1977. <em>The Journal of Foraminiferal Research.</em> 13(3): 191-201., available online at https://doi.org/10.2113/gsjfr.13.3.191
page(s): p. 197 [details] Available for editors
[request]
page(s): p. 197 [details] Available for editors

Diagnosis Test lenticular, globular proloculus and enrolled undivided tubular second chamber, coiling planispiral to very low...
Diagnosis Test lenticular, globular proloculus and enrolled undivided tubular second chamber, coiling planispiral to very low trochospiral and involute, a complete whorl added at each period of test formation, formed by a single lamella that may partially or completely cover the entire test. L. Triassic (Scythian) to U. Triassic (Carnian; ?Rhaetian); Austria; Bulgaria; Poland; USSR; Iran. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Triadodiscus Piller, 1983 †. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=721902 on 2025-04-24
Date
action
by
original description
Piller, W. E. (1983). Remarks on the suborder Involutinina Hohenegger and Piller, 1977. <em>The Journal of Foraminiferal Research.</em> 13(3): 191-201., available online at https://doi.org/10.2113/gsjfr.13.3.191
page(s): p. 197 [details] Available for editors
[request]
original description (of Mesodiscus Piller, 1978 †) Piller, W. (1978). Involutinacea (Foraminifera) der Trias und des Lias. <em>Beiträge zur Paläontologie von Österreich.</em> 5: 1-164., available online at https://www.zobodat.at/pdf/Beitr-Palaeontologie_5_0001-0164.pdf
page(s): p. 41 [details] Available for editors
[request]
basis of record Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors
[request]
page(s): p. 197 [details] Available for editors

original description (of Mesodiscus Piller, 1978 †) Piller, W. (1978). Involutinacea (Foraminifera) der Trias und des Lias. <em>Beiträge zur Paläontologie von Österreich.</em> 5: 1-164., available online at https://www.zobodat.at/pdf/Beitr-Palaeontologie_5_0001-0164.pdf
page(s): p. 41 [details] Available for editors

basis of record Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors

From editor or global species database
Diagnosis Test lenticular, globular proloculus and enrolled undivided tubular second chamber, coiling planispiral to very low trochospiral and involute, a complete whorl added at each period of test formation, formed by a single lamella that may partially or completely cover the entire test. L. Triassic (Scythian) to U. Triassic (Carnian; ?Rhaetian); Austria; Bulgaria; Poland; USSR; Iran. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]