WoRMS taxon details
Evolvocassidulina Eade, 1967
465905 (urn:lsid:marinespecies.org:taxname:465905)
accepted
Genus
Cassidulina orientalis Cushman, 1922 accepted as Evolvocassidulina orientalis (Cushman, 1922) (type by original designation)
marine, brackish, fresh, terrestrial
recent + fossil
Eade, J. V. (1967). New Zealand recent Foraminifera of the families Islandiellidae and Cassidulinidae. <em>New Zealand Journal of Marine and Freshwater Research.</em> 1(4): 421-454., available online at https://doi.org/10.1080/00288330.1967.9515217
page(s): p. 431 [details] Available for editors [request]
page(s): p. 431 [details] Available for editors [request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Evolvocassidulina Eade, 1967. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=465905 on 2024-09-23
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original description
Eade, J. V. (1967). New Zealand recent Foraminifera of the families Islandiellidae and Cassidulinidae. <em>New Zealand Journal of Marine and Freshwater Research.</em> 1(4): 421-454., available online at https://doi.org/10.1080/00288330.1967.9515217
page(s): p. 431 [details] Available for editors [request]
additional source 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. 431 [details] Available for editors [request]
additional source 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]
From editor or global species database
Diagnosis Test free, elongate, early stage lenticular to subglobular, chambers biserially arranged, with the plane of biseriality in the early stage enrolled as in Cassidulina, some shallow water individuals enrolled throughout growth, whereas individuals in deeper water have uncoiled later stage and more elongate chambers; wall calcareous, optically granular, perforate, surface smooth; aperture subterminal, oval to an elongate loop bordered by a narrow lip, with a small spatulate tooth arising from the base of the face adjacent to the previous chamber and protruding from the aperture. U. Eocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]