biostratigraphy and paleoecology of cretaceous/tertiary boundary in ...

Chapter Three Biostratigraphy
Norris (1997),Berggren et al.,(1995); Keller, (2002, and 2004), Abramovich et
al.,(2002), Olsson (2000); and Smit (2005) SE of Spain.
The age estimation of this interval depending on Magnetic polarity and
recorded datum events by (Olsson et al., 2000), (Keller, 2002, 2004) with the
time span of 64.50Ma from first occurrence of, Subbotina triloculinoides, to FAD
of Globanomalina compressa and/or Praemurica inconstans at the top of 63.00
Ma. Estimating absolute ages based on magnetochron ages (Figs. 3.13 -14).
The estimated age is Early Paleocene (Early Danian).
81