Difference between revisions of "Auxiliary chamber"
(Created page with "File:Fig 04.gif|thumb|<font size="2">'''Fig. 1.''' Embryonic and periembryonic chambers in ''Orbitoides spp.'' according to Van Hinte's 1966 concept. '''I:''' protoconch; ''...") |
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'''I:''' protoconch; '''II:''' deuteroconch; '''PAC:''' principal auxiliary chamber; '''PEC:''' principal epi-auxiliary chamber; '''AEC:''' accessory epi-auxiliary chamber. In our view, we prefer to call PAC an auxiliary and AEC an adauxiliary chamber; (Hottinger, 2006; fig. 4 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]] | '''I:''' protoconch; '''II:''' deuteroconch; '''PAC:''' principal auxiliary chamber; '''PEC:''' principal epi-auxiliary chamber; '''AEC:''' accessory epi-auxiliary chamber. In our view, we prefer to call PAC an auxiliary and AEC an adauxiliary chamber; (Hottinger, 2006; fig. 4 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]] | ||
− | [[File:Fig | + | [[File:Fig. 36a.png|thumb|<font size="2">'''Fig. 2.''' Development of chamberlet cycles from an auxiliary chamber in an early orbitoid, the Campanian ''Lepidorbitoides minima'' H. Douvillé from Mexico, after Aguilar et alii, 2002. |
− | '''A:''' stereograph of a megalospheric embryo consisting of a biconch (protoconch and deuteroconch) supplemented by a third chamber (auxiliary chamber) with a median and two lateral stolons. Successive growth stages coloured alternately in red and blue. Lamellation omitted | + | '''A:''' stereograph of a megalospheric embryo consisting of a biconch (protoconch and deuteroconch) supplemented by a third chamber (auxiliary chamber) with a median and two lateral stolons. Successive growth stages coloured alternately in red and blue. Lamellation omitted. Schematic, not to scale. |
− | '''A:''' auxiliary chamber; '''D:''' [[deuteroconch]]; '''P:''' [[protoconch]]; | + | '''A:''' auxiliary chamber; '''D:''' [[deuteroconch]]; '''P:''' [[protoconch]]; ; '''lst:''' lateral stolon; '''mst:''' median stolon; (Hottinger, 2006; fig. 36a [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]] |
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==Definition== | ==Definition== | ||
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==References== | ==References== | ||
+ | Aguilar, Bernaus, Caus & Hottinger (2002), Lepidorbitoides minima DOUVILLÉ from Mexico, a foraminiferal index fossil for the Campanian, Journal of foraminiferal Research, Lawrence, vol. 32, N° 2, p. 126–134. | ||
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+ | Van Hinte (1966), Orbitoides from the Campanian type section. Part I., Koninklijke Nederlandse Akademie van Wetenschappen, Proceedings, Amsterdam, (Series B), vol. 69, N° 1, p. 79-110. | ||
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Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744 | Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744 | ||
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