Worsley, T. R. (1971): Calcareous nannofossil zonation of Upper Jurassic and Lower Cretaceous sediments from the western Atlantic. Rome, International, Proceedings - Planktonic Conference, 2 (2), 1301-1316, georefid:1972-070033

Abstract:
Six formal zones recognized (each approximating a stage), relationship to type stages needs further study, systematic descriptions, four new genera, 31 new species, Caribbean Sea, Leg I JOIDES
Coverage:
West: -78.0000 East: -60.0000 North: 22.0000 South: 9.0000
West: NaN East: NaN North: NaN South: NaN
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=1972-070033 (c.f. for more detailed metadata)
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