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Here a re a few new ones.
JT Geologie en Mijnbouw
DA 1995 v 74 n 4
AU Felder, W.M.
TI Historical overview of lithostratigraphic research on the Upper
Cretaceous of southern Limburg, the Netherlands
AB A historical overview is presented of the (litho)stratigraphic studies
into the Upper Cretaceous deposits in southern Limburg (the Netherlands),
the type area of the Maastrichtian. From 1860 onward, a workable
lithostratigraphy has been available for these deposits. At present, a
division including four formations and 23 members is being used.
JT Modern geology.
DA 1996 v 20 n 3 / 4
AU Elliott, David K.
AU Ilyes, Robert R.
TI Lower Devonian Vertebrate Biostratigraphy of the Western United States
DA NOV 07 1996 v 384 n 6604
AU Mojzsis, S.L.
AU Arrhenius, G.
AU Friend, C.R.L.
TI Evidence for life on Earth before 3,800 million years ago
JT Cretaceous research.
DA OCT 01 1996 v 17 n 5
AU Gale, A. S.
AU Kennedy, W. J.
AU Kidd, B. E.
TI The Late Albian to Early Cenomanian succession at Mont Risou near Rosans
(Drome, SE France): an integrated study (ammonites, inoceramids, planktonic
foraminifera, nannofossils, oxygen and carbon isotopes).
Ab The Second International Symposium on Cretaceous stage boundaries held
in Brussels from September 8-14 1995 reached a preliminary agreement on the
definition of the base of the Cenomanian stage as the first occurrence of
the planktonic foraminiferan Rotalipora globotruncanoides Sigal, with a
section at Mont Risou near Rosans, Drome, SE France as the global reference
section, where the first occurrence of R. globotruncanoides lies 36 m below
the top of the Marnes Bleues as defined by a zero datum limestone at the
base of the succeeding unit. The succession yields ammonites, inoceramid
bivalves, nannofossils and planktonic foraminifera that provide a series of
marker levels across the boundary, while an ornate delta(13)C curve
provides a geochemical marker that can also be recognized in NE England and
Italy. Proxies for R. globotruncanoides are: the first appearance of
Mantelliceras mantelli and other ammonites of the mantelli Zone at -30 m,
the first occurrence of the nannofossil Calculites anfractus, the first
occurrence of the planktonic foraminiferan Rotalipora gandolfii and the
last occurrence of the planktonic foraminiferan Rotalipora ticinensis at
-40 m, and the last occurrence of the nannofossil Staurolithites glabra at
Ammonite, inoceramid, nannofossil and planktonic foraminiferan
are documented, a systematic account of the ammonites, and full range data
and nomenclature of the nannofossils provided. Previous alternative
definitions of, and boundary stratotypes proposed for the base of the
Cenomanian are critically reviewed and compared with the Risou section.
(C) 1996 Academic Press Limited
JT Cretaceous research.
DA OCT 01 1996 v 17 n 5
AU Hunter, J. P.
AU Pearson, D. A.
TI First record of Lancian (Late Cretaceous) mammals from the Hell Creek
Formation of southwestern North Dakota, USA
Ab First records of fossil mammals from the Hell Creek Formation of
southwestern North Dakota, USA, are described. The assemblage is similar to
local faunas from the Lance Formation type area, Wyoming, and the Hell
Creek Formation type area, Montana. One species absent from the Lance
(Gypsonictops illuminatus), however, occurs both in the Hell Creek
Formation of North Dakota and the Scollard Formation of Alberta. These
findings suggest a Lancian age for the part of the Hell Creek in which
these fossils occur and imply that Lancian local faunas in the Western
Interior of North America sample a coherent latest Cretaceous biogeographic
realm. Megafloral zonation of the Hell Creek Formation and correlation to
the standard ammonite zonation suggest that future research efforts at the
base of the Hell Creek in eastern Montana and southwestern North Dakota may
help to elucidate mammalian faunal turnover across the'Edmontonian'-Lancian
boundary. (C) 1996 Academic Press Limited
JT Monthly notices of the royal astronomical societ
DA OCT 15 1996 v 282 n 4
AU Matsumoto, Maki
AU Kubotani, Hiroto
TI A statistical test for correlation between crater formation rate and
Ab Previous works have analysed the stationary periodicities of terrestrial
crater formation rate and mass extinctions, and have compared the periods
to discuss their causality. However, the coincidence of the periods does
not necessarily mean that the two are correlated. Thus, in order to
estimate the correlation directly, we test the null hypothesis that
extinctions occurred independently of peaks in the crater formation rate.
This hypothesis is rejected with a low significance level (3.0-7.1 per
cent), even if the uncertainty in dating the craters is taken into account.
Therefore, the rhythm of the mass extinctions with the time-scale of 30
Myr is highly correlated with that of the giant impacts.
"Oh, well. No use crying over spilt mitochondria."