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Francuscia McCulloch 1981

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Francuscia ( Spanish; Castilian )

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Francuscia es un género de foraminífero bentónico de la subfamilia Polymorphininae, de la familia Polymorphinidae, de la superfamilia Polymorphinoidea, del suborden Lagenina y del orden Lagenida.[1]​[2]​ Su especie-tipo es Francuscia cernuata. Su rango cronoestratigráfico abarca el Holoceno.

Discusión

Clasificaciones previas incluían Francuscia en la superfamilia Nodosarioidea.[3]​

Clasificación

Francuscia incluye a las siguientes especies:[4]​[5]​[6]​

Bibliografía

  1. ↑ 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.
  2. ↑ World Modern Foraminifera Database, en http://www.marinespecies.org/foraminifera/index.php
  3. ↑ 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.
  4. ↑ Encyclopedia of the Life, en http://eol.org/
  5. ↑ World Modern Foraminifera Database, en http://www.marinespecies.org/foraminifera/index.php
  6. ↑ Classifications Browser en http://www.ubio.org/browser/classifications.php?conceptID=13894357&expand=1&namebankID= Página 1 de 134
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Francuscia: Brief Summary ( Spanish; Castilian )

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Francuscia es un género de foraminífero bentónico de la subfamilia Polymorphininae, de la familia Polymorphinidae, de la superfamilia Polymorphinoidea, del suborden Lagenina y del orden Lagenida.​​ Su especie-tipo es Francuscia cernuata. Su rango cronoestratigráfico abarca el Holoceno.

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Diagnosis

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Test elongate, slightly compressed, early chambers biserially arranged and strongly overlapping at the test margins as in Polymorphina, final chamber globular, centered or slightly eccentric, produced terminally into a short neck, sutures strongly oblique and depressed in the early stage, final one nearly straight and horizontal, strongly constricted; wall calcareous, hyaline, finely perforate, surface smooth; aperture rounded, terminal on the short cylindrical neck. Holocene; E. Pacific; Gulf of California, Mexico. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)

Reference

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

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