Lenticulina calcar

• Main Authors: Bergh, Eugene W., Compton, John S.
• Format: Text
• Language: unknown
• Published: Zenodo 2022
• Subjects: Biodiversity; Taxonomy; Chromista; Foraminifera; Nodosariata; Vaginulinida; Vaginulinidae; Lenticulina; Lenticulina calcar; Southern Ocean; Norwegian Sea; Trinidad; Christensen; Lowry; Perez; Nautilus; Vidal
• Online Access: https://dx.doi.org/10.5281/zenodo.5840485; https://zenodo.org/record/5840485

Lenticulina calcar (Linnaeus, 1758) Pl. 2, figs. 4-5 Nautilus calcar Linnaeus, 1758, p. 709, pl. 14, fig. 14; Linnaeus, 1767, p. 1162, 272. Lenticulina calcar De Blainville, 1825, p. 390; Barker, 1960, p. 146, pl. 70, figs. 9–12; LeRoy & Levinson, 1974, p. 7, pl. 3, fig. 12; Martin, 1981, p. 32, pl. 8, fig. 6; Kohl, 1985, p. 47, pl. 10, figs. 4–5; Papp & Schmid, 1985, pl. 30, figs. 1–3; Lowry, 1987, p. 165, pl. 9, fig. 4; Bolli et al. , 1994, p. 294, pl. 294, pl. 77, fig. 5; Kender et al ., 2008, p. 510, pl. 14, fig. 14. Robulina calcar d’Orbigny, 1846, p. 99, pl. 4, figs. 18–20; Renz, 1948, pl. 3, fig. 6. Cristellaria calcar Parker et al ., 1871, p. 241, pl. 10, figs. 91–94; Brady, 1884, p. 551, pl. 7, figs. 9–12; Nuttall, 1928, pl. 5, fig. 8; Macfayden, 1930, pl. 3, fig. 17. Robulus calcar Cushman, 1923b, p. 115, pl. 30, fig. 7, pl. 31, figs. 4–5; Bandy, 1956, p. 197, pl. 30, fig. 11; Braga, 1960, p. 101, pl. 10, fig. 4. Description: The test wall is smooth and calcareous. The large test is involute, planispiral, biconvex with a keeled periphery. Tests have three to four spines extending from alternating chambers. There are up to seven limbate chambers visible in the final whorl, increasing gradually in size toward the apertural end. The sutures are slightly curved. The aperture is terminal and radiate. Remarks: Lenticulina calcar generally occurs in low relative abundances (<1%) in this study. LeRoy & Levinson (1974) reported a maximum diameter of 0.85 mm. Tests in this study are slightly larger with diameters of up to 1 mm. This species is distinguished from the other Lenticulina spp. through its spines that extend from the keeled margin of the test. The sutures of this species is also more raised compared to others in this genus. Life strategy: This species is recorded to live unattached, epifaunal (Corliss and Chen, 1988) and under oxic (Pezelj et al., 2013 and references therein) to suboxic conditions (Kaiho, 1994), preferring muddy substrates (Murray, 1991) on the shelf to middle slope (Gallagher et al ., 2001). Global stratigraphic range: Lenticulina calcar is documented as an extant species, occurring in Miocene to Recent strata (Jones, 1994). Regional occurrence: The distribution of L. calcar is widespread chronostratigraphically in late Cenozoic strata and spatially along the margin of southern Africa. This species occurs in Miocene strata in the Congo Basin (Kender et al ., 2008) to south of the Kunene River mouth (this study). Wefer et al . (1998) do not distinguish between the different species, but recorded minor relative abundances for Lenticulina spp. of less than 5% along the Namibian slope from the late Miocene to Pleistocene. The occurrence of Lenticulina calcar has also been recorded along the entire coastline of South Africa in surface sediments (Martin, 1981; Lowry, 1987). : Published as part of Bergh, Eugene W. & Compton, John S., 2022, Taxonomy of Middle Miocene foraminifera from the northern Namibian continental shelf, pp. 1-55 in Zootaxa 5091 (1) on pages 13-14, DOI: 10.11646/zootaxa.5091.1.1, http://zenodo.org/record/5840434 : {"references": ["Linnaeus, C. (1758) Systema naturae per regna Tria naturae, secundum classes, ordines genera, species, cum characteribus, differentiis, synonymis, locis. Vol. 1. 10 th Edition. Laurentii Salvii, Holmiae [Stockholm], 824 pp. https: // doi. org / 10.5962 / bhl. title. 542", "Linnaeus, C. (1767) Systema naturae, sive regna tria naturae systematica propositi per dasses, ordines, genera et species. Laurentii Salvii, Holmiae (Stockholm), 694 pp.", "De Blainville, H. M. D. (1825) Manuel de Malacologie et de Conchyliologie. F. G. Levrault, Paris, 664 pp.", "Barker, R. W. (1960) Taxonomic notes on the species figured by H. B. Brady in his report on the Foraminifera dredged by H. M. S. Challenger during the years 1873 - 1876. Society of Economic Palaeontologists and Mineralogists, Special Publication, 9, 1 - 238.", "LeRoy, D. O. & Levinson, S. A. (1974) A deep-water Pleistocene microfossil assemblage from a well in the Northern Gulf of Mexico. Micropalaeontology, 20 (1), 1 - 37. https: // doi. org / 10.2307 / 1485098", "Martin, R. A. (1981) Benthic foraminifera from the Orange-Luderitz shelf southern African continental margin. Bulletin Joint Geological Survey / University of Cape Town Marine Geoscience Unit, 11, 1 - 75.", "Kohl, B. (1985) Early Pliocene benthic foraminifers from the Salina Basin, Southeastern Mexico. Bulletins of American Palaeontology, 88, 1 - 157.", "Papp, A. & Schmid, M. E. (1985) The fossil foraminifera of the Tertiary Basin of Vienna: revision of the monograph by Alcide d'Orbigny (1846). Abhandlungen der Geologischen Bundesanstalt, 37, 1 - 311.", "Lowry, F. M. D. (1987) Foraminiferal thanatocoenoses from the continental shelf of southern Africa. Unpublished Ph. D. thesis, University College, London, 443 pp.", "Bolli, H. M., Beckmann, J. P. & Sanders, J. B. (1994) Benthic Foraminiferal Biostratigraphy of the South Caribbean Region. Cambridge University Press, Cambridge, 408 pp. https: // doi. org / 10.1017 / CBO 9780511564406", "Kender, S., Kaminski, M. A. & Jones, R. W. (2008) Early to middle Miocene foraminifera from the deep-sea Congo Fan, offshore Angola. Micropalaeontology, 54, 477 - 568.", "d'Orbigny, A. D. (1846) Foraminiferes Fossiles du Basin Tertiaire de Vienne (Austriche). Gide et Comp, Paris, 312 pp. https: // doi. org / 10.5962 / bhl. title. 145432", "Renz, H. H. (1948) Stratigraphy and fauna of the Agua Salada Group, State of Falcon, Venezuela. Memoirs of the Geological Society of America, 32, 1 - 219. https: // doi. org / 10.1130 / MEM 32 - p 1", "Parker, W. K., Jones, T. R. & Brady, H. B. (1871) On the nomenclature of the Foraminifera. Pt. 14. The species enumerated by d'Orbigny in the Annales des Sciences Naturelles. Annals and Magazine of Natural History, 8, 145 - 179. https: // doi. org / 10.1080 / 00222937108696460", "Brady, H. B. (1884) Report of the foraminifera dredged by H. M. S. Challenger during the years 1873 - 1876. Zoology, 9, 1 - 814.", "Nuttall, W. L. F. (1928) Tertiary foraminifera from the Naparima region of Trinidad (British West Indies). Quarterly Journal of the Geological Society of London, 84, 57 - 116. https: // doi. org / 10.1144 / GSL. JGS. 1928.084.01 - 04.04", "Macfayden, W. A. (1930) Miocene foraminifera from the clysmic area of Egypt and Sinai, with an account of the stratigraphy and a correlation of the local Miocene succession. Surveys of Egypt-Geological Survey, 40, 1 - 149.", "Cushman, J. A. (1923 b) The foraminifera of the Vicksburg Group. United States Geological Survey Professional Paper, 133, 11 - 71.", "Bandy, O. L. (1956) Ecology of foraminifera in northeastern Gulf of Mexico. United States Geological Survey Professional Paper, 274, 179 - 204. https: // doi. org / 10.3133 / pp 274 G", "Braga, J. M. (1960) Foraminiferos da costa de Mocambique. Etudos, Ensaios e Documentos No. 67, Junta de Investigacoes do Ultramar, Lisboa, 208 pp.", "Corliss, B. H. & Chen, C. (1988) Morphotype patterns of Norwegian Sea deep-sea benthic foraminifera and ecological implications. Geology, 16 (8), 716 - 719. https: // doi. org / 10.1130 / 0091 - 7613 (1988) 016 <0716: MPONSD> 2.3. CO; 2", "Pezelj, D, Mandic, O. & Coric, S. (2013) Paleoenvironmental dynamics in the southern Pannonian Basin during initial Middle Miocene marine flooding. Geologica Carpathica, 64, 81 - 100.", "Kaiho, K. (1994) Benthic foraminiferal dissolved-oxygen index and dissolved-oxygen levels in the modern ocean. Geology, 22 (8), 719 - 722. https: // doi. org / 10.1130 / 0091 - 7613 (1994) 022 <0719: BFDOIA> 2.3. CO; 2", "Murray, J. W. (1991) Ecology and palaeoecology of benthic foraminifera. Longman, Harlow, 397 pp.", "Gallagher, S. J., Smith. A. J., Jonasson, K., Wallace, M. W., Holdgate, G. R., Daniels. J. & Taylor, D. (2001) The Miocene palaeoenvironmental and palaeoceanographic evolution of the Gippsland Basin, Southeast Australia: a record of Southern Ocean change. Palaeogeography, Palaeoclimatology, Palaeoecology, 172, 53 - 80. https: // doi. org / 10.1016 / S 0031 - 0182 (01) 00271 - 1", "Jones, R. W. (1994) The Challenger Foraminifera. Oxford University Press, Oxford, 149 pp.", "Wefer, G., Berger, W. H., Richter, C., Adams, D. D., Anderon, L. D., Andreasen, D. J., Bruchert, V., Cambray, H., Christensen, B. A., Frost, G. M., Giraudeau, J., Gorgas, T. J., Hermelin, O., Lange, C. B., Laser, B., Lin, H-L., Maslin, M., Meyers, P. A., Motoyama, I., Murray, R. W., Pato, D., Perez, M. E., Pufahl, P. K., Spiess, V., Vidal. L., Wigley, R. & Yamazaki, T. (1998) Proceedings of the Ocean Drilling Program, Initial Reports. Vol. 175. Ocean Drilling Program, College Station, Texas, 577 pp."]}