- upon the
fossil species found within each section.
Basic concepts of
biostratigraphic principles were
introduced many
centuries ago,
going as far back as...
- base of the
Hettangian Stage, and so of the Jur****ic
System itself.
Biostratigraphically, the
first appearance of
psiloceratid ammonites has been used; but...
- G. (1992). "Australian
cretaceous terrestrial faunas and floras:
biostratigraphic and
biogeographic implications".
Cretaceous Research. 13 (3): 207–262...
- and
fossils from the
Precambrian (e.g. stromatolites) are of
limited biostratigraphic use. This is
because many
Precambrian rocks have been
heavily metamorphosed...
-
marine fauna to
particular geographic areas thereby reducing widespread biostratigraphic correlations.
Extensive volcanic events ****ociated with the ****embling...
- S. J.; Roberts,
Andrew P.; Norris, R. D. (20
November 2010). "New
biostratigraphic,
magnetostratigraphic and
isotopic insights into the
Middle Eocene...
-
boundary has been
difficult because of the
strong regionality of most
biostratigraphic markers, and the lack of any
chemostratigraphic events, such as isotope...
- Boersma, Anne; Rakic-El Bied,
Kruna (1994). "Magnetostratigraphic,
Biostratigraphic, and
Stable Isotope Stratigraphy of an
Upper Miocene Drill Core from...
- "Timing of
recovery from the end-Permian extinction:
Geochronologic and
biostratigraphic constraints from
south China". Geology. 34 (12): 1053–56. Bibcode:2006Geo...
- d'Orbigny's
original scheme and
further subdivided the
stages into
biostratigraphic zones,
based primarily on ammonites. Most of the
modern stages of the...
