Foraminifera taxon details
Praeophthalmidium Knauff, 1966 †
721262 (urn:lsid:marinespecies.org:taxname:721262)
accepted
Genus
Ophthalmidium orbiculare Burbach, 1886 † accepted as Praeophthalmidium orbiculare (Burbach, 1886) † (type by original designation)
- Species Praeophthalmidium orbiculare (Burbach, 1886) †
- Species Praeophthalmidium ovale (Burbach, 1886) †
- Subgenus Praeophthalmidium (Eoophthalmidium) Langer, 1968 † accepted as Eoophthalmidium Langer, 1968 † (Opinion of Zaninetti and Brönnimann (1969) Nomen translatum)
- Species Praeophthalmidium (Eoophthalmidium) tricki Langer, 1968 † accepted as Eoophthalmidium tricki (Langer, 1968) † (Type species of Eoophthalmidium)
- Species Praeophthalmidium exiguum (Koehn-Zaninetti, 1969) † accepted as Ophthalmidium exiguum Koehn-Zaninetti, 1969 † (Opinion of Vaptsarova et al. (1974))
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]
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 2024-03-29
Date
action
by
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 [request]
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 [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]