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Description of Bronnimannia ( anglais )

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Bronnimannia ( espagnol ; castillan )

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Bronnimannia es un género de foraminífero bentónico de la familia Bronnimanniidae, de la superfamilia Discorboidea, del suborden Rotaliina[1]​ y del orden Rotaliida.[2]​ Su especie tipo es Discorbis palmerae. Su rango cronoestratigráfico abarca desde el Mioceno hasta la Actualidad.

Clasificación

Bronnimannia incluye a las siguientes especies:[3][4][5]

Otra especie considerada en Bronnimannia es:

Bibliografía

  1. Loeblich, A.R., Jr. y Tappan, H. (1987). Foraminiferal genera and their classification. Van Nostrand Reinhold Company (ed.), 2 vol., 1-970, 1-212 + 847 láminas.
  2. Loeblich, A.R., Jr. y Tappan, H. (1992). Present Status of Foraminiferal Classification. Studies in Benthic Foraminifera en Benthos'90, Sendai (1990), Tokai University Press, 93-102.
  3. Encyclopedia of the Life, en http://eol.org/
  4. World Modern Foraminifera Database, en http://www.marinespecies.org/foraminifera/index.php
  5. Classifications Browser en http://www.ubio.org/browser/classifications.php?conceptID=13894357&expand=1&namebankID= Página 1 de 134
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Bronnimannia: Brief Summary ( espagnol ; castillan )

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Bronnimannia es un género de foraminífero bentónico de la familia Bronnimanniidae, de la superfamilia Discorboidea, del suborden Rotaliina​ y del orden Rotaliida.​ Su especie tipo es Discorbis palmerae. Su rango cronoestratigráfico abarca desde el Mioceno hasta la Actualidad.

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Diagnosis ( anglais )

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Test auriculate in outline, very low trochospiral to planispiral, whorls enlarging rapidly and test somewhat flared, bievolute and biconcave with broadly truncate periphery marked by a sharp angle at the spiral margin and by a distinct keel at the margin of the umbilical side, chambers increasing more rapidly in breadth than height, sutures curved and depressed on both sides, with a sinuate curve resulting from a proximally directed sutural bend at the peripheral angle; wall calcareous, hyaline, optically radial, umbilical side finely perforate, spiral side more coarsely perforate, surface smooth other than the elevated keel that remains as a continuous imperforate spiral suture visible on all whorls of the umbilical side; aperture a low, interiomarginal slit beneath the umbilical flap or folium, posterior margin of folium marked by a distinct notch, both folium and notch remaining evident on most chambers of the final whorl. ?Oligocene, Miocene to Holocene; Gulf of Mexico; Atlantic; Pacific. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)

Référence

Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.

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