bforams@mikrotax - Elphidium macellum

NB This site is under active development, current content in the main database is primarily from Bolli et al 1994, Hayward et al. 2012, Holbourn et al. 2013, Holbourn and Kaminski 1997, Alegret & Thomas 2001, and Katz et al. 2003. It is intended to expand and develop this to provide rather comprehensive coverage of Mesozoic and Cenozoic deep-sea benthic foraminifera.

Taxonomy

Citation: Elphidium macellum (Fichtel & Moll), 1798

Basionym: Nautilus macellus Fichtel & Moll, 1798

Synonyms:

?Nautilus strigilatus var. α Fichtel and Moll, 1798, p. 49, pl. 5, fig s . c – e. [according to Holbourn et al. 2013]
Nautilus strigilatus var. β Fichtel and Moll, 1798, p. 50, pl. 5, fig s . f – g. [according to Holbourn et al. 2013]
Vorticialis marginata Lamarck, 1816, p. 14, pl. 470, fig. 3 a–b. [according to Holbourn et al. 2013]
Polystomella strigilata Fichtel. –d’Orbigny, 1826, p. 284, No. 4. [according to Holbourn et al. 2013]
Polystomella macella (Fichtel and Moll). –Brady, 1884, p. 737, pl. 110, figs. 8, 11 (not figs. 9–10). [according to Holbourn et al. 2013]
Elphidium macellum (Fichtel and Moll). –Barker, 1960, p. 109, pl. 110, figs. 8, 11. –Loeblich and Tappan, 1987, p. 674, pl. 786, figs. 6–7; pl. 789, figs. 1–5. –Rögl and Hansen, 1984, p. 39, pl. 9, figs. 3–4, textfig. 12. –Jones, 1994, p. 109, pl. 110, figs. 8, 11. [according to Holbourn et al. 2013]

Taxonomic discussion: The variety α of Nautilus strigilatus Fichtel and Moll, 1798, was designated as type species of the genus Sporilus de Montfort, 1808, subsequently synonymized with the genus Elphidium de Montfort, 1808. Thus, Elphidium macellum is the type species of the genus Elphidium de Montfort, 1808. According to Rögl and Hansen (1984), the development of the spinose keel is highly variable. Populations from the Adriatic coast studied by these authors show all variations ranging from nonspinose to having well-defined spines. [Holbourn et al. 2013]

Description

Test forms a lenticular, compressed planispire; subcircular in outline with a subacute, keeled periphery, occasionally spinose. Chambers are generally numerous (17.5 in the lectotype), increasing gradually in size, and separated by prominent, raised, curved sutures. Chamber walls are calcareous, finely perforate, and ornamented by external ponticuli spanning the sutures. The primary aperture is an interiomarginal opening. Additional areal openings may be present. [Holbourn et al. 2013]

Biogeography and Palaeobiology

Neritic to bathyal (Jones, 1994). [Holbourn et al. 2013]

Biostratigraphic distribution

Geological Range:
Notes: Miocene to Recent (Jones, 1994).
Last occurrence (top): Extant. Data source:
First occurrence (base): within Miocene Epoch (5.33-23.03Ma, base in Aquitanian stage).

Plot of occurrence data:
NB The ranges given for genera and higher taxa are the total ranges of species included in that taxon in this database - so the true total range of the taxon will usually be longer

References:

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. SEPM Special Publication. 9: 1-238. gs

Brady, H. B. (1884). Report on the foraminifera dredged by H.M.S. Challenger during the years 1873–1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 9: 1-814. gs

d'Orbigny, A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles, Paris. 7: 245-314. gs

Fichtel, L. von & Moll, J. P. C. von (1798). Testacea microscopica aliaque minuta ex generibus Argonauta et Nautilus ad naturam delineata et descripta. Microscopische und andere kleine Schalthiere aus den Geschlechtern Argonaute und Schiffer, nach der Natur gezeichnet und beschrieben. Camesina, Vienna. 1-124. gs

Haynes, J. R. (1973). Cardigan Bay Recent Foraminifera. (Cruises of the R.V. Antur, 1962–1964). Bulletin of the British Museum (Natural History). (4): 1-245. gs

Holbourn, A., Henderson, A. S. & MacLeod, N. (2013). Atlas of Benthic Foraminifera. Natural History Museum, London. 1-651. gs

Jones, R. W. (1994). The Challenger Foraminifera. Oxford University Press, Oxford. 1-149. gs

Lamarck, J. B. (1816). Tableau encyclopédique et méthodique des trois règnes de la nature, partie 23 – Mollusques et polypes divers. Mme V. Agasse, Paris. 1-16. gs

Loeblich, A. R. Jr & Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold, New York. 1-970. gs

Rögl, F. & Hansen, J. H. (1984). Foraminifera described by Fichtel and Moll in 1798; A revision of Testacea Microscopica. Appendix Testacea Microscopica alique minuta ex Generibus Argonauta et Nautilus. Reprint of original plates. Neue Denkschriften des Naturhistorischen Museum in Wien. 3: 1-143. gs

Elphidium macellum

Taxonomy

Description

Biogeography and Palaeobiology

Biostratigraphic distribution

References:

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