Lower Cretaceous nannofossils of the northwestern Australian margin, supplement to: Mutterlose, Jörg (1992): Lower Cretaceous nannofossil biostratigraphy off northwestern Australia (Leg 123). In: Gradstein, FM; Ludden, JN; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 123, 343-368

Jörg Mutterlose
Moderately to sparsely nannofossiliferous Neocomian siliciclastics and rich Aptian-Albian nannofossil chalks were cored at two Leg 123 sites on the abyssal plains off northwestern Australia. At Site 765, the basal 70 m of cored section yields questionable Tithonian and Berriasian to early Hauterivian assemblages of moderate diversity containing Cruelellipsis cuvillieri, Tegumentum striatum, Speetonia colligata, and Crucibiscutum salebrosum. The overlying Hauterivianlower Aptian is represented by 140 m of sediments barren of nannofossils. Above this, the remaining...
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