View source for Astral lobe

[[File:Fig 13.gif|thumb|<font size="2">'''Fig. 1.''' Astral lobes: Original figure from Davies, 1932, p. 414.
'''AF:''' astral furrow (= [[foliar suture]]); '''AL''' (coloured): astral lobes (= folia): '''MB:''' marginal band (= [[keel]]); '''MF:''' marginal furrow (= [[septal suture]]); '''OC:''' outer chambers; '''P:''' pylome (= [[aperture]]); '''RF:''' radial furrows (= chamber sutures);(Hottinger, 2006; fig. 13 [http://paleopolis.rediris.es/cg/CG2006_M02/index.html] '''CC'''/BY-NC-SA)]]
'''ASTRAL LOBE''' -  see [[folium]].


''Remarks:'' Carpenter et al. (1862), Brady (1884) and in particular Davies (1932) in his basic monograph on ''Rotalia trochidiformis'' used the term astral lobe to designate what is currently called a folium. In spite of their similar ventral-adumbilical position astral lobes must be distinguished from [[stellar chamberlets]] (as in Amphisteginidae) that are separated from their corresponding main chamber by a complete wall. However, functional similarities may not be excluded.




==References==
Carpenter, Parker & Jones (1862), Introduction to the study of Foraminifera. Ray Society, London, 319 p. + 22 pls.

Brady (1884), Report on the Foraminifera dredged by H.M.S. Challenger during the years 1873-1876. Reports of the Scientific Results of the Voyage of H.M.S. Challenger (Zoology), 9, 814 p.

Davies (1932), The genera Dictyoconoides NUTTALL, Lockhartia nov. and Rotalia LAMARCK: Their type species, generic differences and fundamental distinction from the Dictyoconus group forms, Transactions of the Royal Society of Edinburgh, vol. 57, p. 397-428.

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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