Foraminifera taxon details

Praeophthalmidium Knauff, 1966 †

721262  (urn:lsid:marinespecies.org:taxname:721262)

accepted
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marine, brackish, fresh, terrestrial
fossil only
neuter
Knauff, W., 1966, Praeophthalmidium n. g. (Foram.), Eine entwicklungsgeschichtliche Untersuchung, Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 125:96-102.
page(s): p. 100 [details]   
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Praeophthalmidium Knauff, 1966 †. Accessed at: https://www.marinespecies.org/foraminifera/aphia.php?p=taxdetails&id=721262 on 2024-03-28
Date
action
by
2013-03-08 13:53:47Z
created
2017-12-16 10:21:03Z
changed
2019-11-11 12:13:26Z
changed

original description Knauff, W., 1966, Praeophthalmidium n. g. (Foram.), Eine entwicklungsgeschichtliche Untersuchung, Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 125:96-102.
page(s): p. 100 [details]   

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  PDF available [request] 
From editor or global species database
Diagnosis Test flattened, circular to ovoid in outline, globular proloculus followed by planispirally enrolled second chamber of one to four volutions in length, later chambers each extend for an entire volution or slightly more, somewhat widened at the base and tapering toward the aperture, chambers slightly extended away from the coil distally so that the test becomes somewhat elongate and the outline teardroplike, chamber lumen of successive chambers separated by thin platelike shell material; wall calcareous, imperforate, porcelaneous; aperture at the open end of the tube. L. Jurassic (Hettangian to Pliensbachian); Germany. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]