Foraminifera taxon details
Rubratella Grell, 1956
527957 (urn:lsid:marinespecies.org:taxname:527957)
accepted
Genus
Rubratella intermedia Grell, 1956 (type by original designation)
marine, brackish, fresh, terrestrial
recent + fossil
feminine
Grell, K. G. (1956). Notizen: Über die Elimination somatischer Kerne bei heterokaryotischen Foraminiferen. <em>Zeitschrift für Naturforschung B.</em> 11(12): 759-761., available online at https://doi.org/10.1515/znb-1956-1221
page(s): p. 760 [details] Available for editors
[request]
page(s): p. 760 [details] Available for editors
[request]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2023). World Foraminifera Database. Rubratella Grell, 1956. Accessed at: https://www.marinespecies.org/Foraminifera/aphia.php?p=taxdetails&id=527957 on 2023-12-02
Date
action
by
original description
Grell, K. G. (1956). Notizen: Über die Elimination somatischer Kerne bei heterokaryotischen Foraminiferen. <em>Zeitschrift für Naturforschung B.</em> 11(12): 759-761., available online at https://doi.org/10.1515/znb-1956-1221
page(s): p. 760 [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]
additional source Holzmann, M.; Pawlowski, J. (2017). An updated classification of rotaliid foraminifera based on ribosomal DNA phylogeny. <em>Marine Micropaleontology.</em> , available online at https://doi.org/10.1016/j.marmicro.2017.04.002
note: DNA basis for family placement [details] Available for editors [request]
page(s): p. 760 [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] additional source Holzmann, M.; Pawlowski, J. (2017). An updated classification of rotaliid foraminifera based on ribosomal DNA phylogeny. <em>Marine Micropaleontology.</em> , available online at https://doi.org/10.1016/j.marmicro.2017.04.002
note: DNA basis for family placement [details] Available for editors
[request] From editor or global species database
Diagnosis Test small, with only one trochospiral whorl, four to seven chambers in the adult agamont, one to five in the smaller gamont adult, chambers lunate, broad and low, four in the final whorl, sutures strongly curved on the evolute spiral side, radial and straight on the involute umbilical side, umbilicus closed, chambers subdivided internally by a radial partition extending inward from the peripheral wall and dividing the chamber lumen into anterior and posterior halves, on the spiral side the anterior half remains visible around the proloculus as new chambers are added but only a small wedgelike part of the posterior half is visible adjacent to the periphery, whereas on the umbilical side only the posterior half remains visible as later chambers overlap the anterior half, peripheral outline lobulate; wall calcareous, mineralogy and optical characters unknown, posterior umbilical half of chamber wall perforate, anterior spiral half imperforate; aperture a large open interiomarginal umbilical arch on the umbilical side, the two halves of a chamber connected by a small foramen in the internal partition; cytoplasm with numerous orange-red refringent xanthosomes, agamont generation heterokaryotic, the two to eight nuclei commonly including one vegetative nucleus and five generative nuclei with only the latter involved in asexual reproduction, entire protoplast escapes from the test following nuclear division but prior to the cytoplasmic separation into young gamonts; gamont generation uninucleate, sexual reproduction plastogamic, individual gamonts joining by their umbilical surfaces for the formation of amoeboid gametes and zygotes. Holocene; France. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]