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Steigerina ( Spanish; Castilian )

provided by wikipedia ES

Steigerina, en ocasiones erróneamente denominado Steigierina, es un género de foraminífero bentónico de la subfamilia Miliolinellinae, de la familia Hauerinidae, de la superfamilia Milioloidea, del suborden Miliolina[1]​ y del orden Miliolida.[2]​ Su especie tipo es Steigerina bubnanensis. Su rango cronoestratigráfico abarca el Holoceno.

Clasificación

Steigerina incluye a la siguiente especie:[3][4][5]

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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Steigerina: Brief Summary ( Spanish; Castilian )

provided by wikipedia ES

Steigerina, en ocasiones erróneamente denominado Steigierina, es un género de foraminífero bentónico de la subfamilia Miliolinellinae, de la familia Hauerinidae, de la superfamilia Milioloidea, del suborden Miliolina​ y del orden Miliolida.​ Su especie tipo es Steigerina bubnanensis. Su rango cronoestratigráfico abarca el Holoceno.

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Diagnosis

provided by World Register of Marine Species
Test rounded in outline, flattened, early stage with chambers a half coil in length in quinqueloculine arrangement, later with broad and strongly overlapping planispiral chambers that are narrower at the base and widen distally, final whorl may include two and a half chambers as last one is slightly shorter, sutures depressed, periphery rounded; wall calcareous, porcelaneous, thick, surface with longitudinal to oblique ribs; aperture a high arch at the end of the final chamber, with a narrow triangular tooth projecting from its base. Holocene, at 20 m to 40 m; Philippines. (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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Tomas Cedhagen [email]