UTRECHT MICROPALEONTOLOGICAL BUllETINS
UTRECHT MICROPALEONTOLOGICAL BUllETINS
UTRECHT MICROPALEONTOLOGICAL BUllETINS
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Ljthostratigraphic Lithostratlunits<br />
lisen. gTaphic:)Wlits<br />
In this paper Wester~ai;(jj(1922)<br />
chart I1<br />
Strata<br />
WestergRrd<br />
( 1922)<br />
Probable position<br />
in the Swedish biozonation<br />
(fig. 11 )<br />
Planilimba ta<br />
kalk (= limestone)<br />
1) Planilimbata<br />
limestone, in<br />
the lower beds<br />
grey green and<br />
glauconitic<br />
Ceratopyge<br />
skiffer<br />
(= shale)<br />
f--------<br />
Dictyograptus<br />
skiffer<br />
(= Dictyonema<br />
shale)<br />
3)Alum shale<br />
with some<br />
ten-s"esof<br />
b2 tUDnllOUs<br />
limestone<br />
L-;';;'; 0.10 -m-: Di;;;Y;:: -<br />
graptus flabelliformis<br />
norvegicus (=Dictyonema<br />
flabelliforme norvegicum)<br />
Subzone of Dietyonema<br />
flabe lliforme norvegicum<br />
and Bryograptus<br />
kjerulfi<br />
The Obolus<br />
conglomerate.<br />
after Westerg~rd,<br />
1947 1 )<br />
4)Bituminous<br />
limestone bed,<br />
which in the<br />
top portion<br />
contains a<br />
discontinuous<br />
conglomerate<br />
The conglomerate:Orusia<br />
lenticularis,Sphaerophtalmus<br />
major,Peltura scarabaeoides<br />
~HyoZi thus sp. ~<br />
Agnostus pisiformis,Olenus<br />
gibbosus and Diet yograptus<br />
sp. (=Dictyonema<br />
sp.)<br />
The limestone bed:Agnostus<br />
pisiformis,Schmalenseeia<br />
arrrphionuY'a<br />
Conglomerate: Subzone of<br />
Dictyonema<br />
Olenid<br />
skiffer<br />
(= shale)<br />
5)Alum shale<br />
of variable<br />
thickness<br />
0.15 m<br />
6)A limestone<br />
bed, chiefly<br />
containing<br />
bituminous<br />
columnar limestone,<br />
whilst<br />
the base is<br />
composed of<br />
grey green<br />
limestone.<br />
These are<br />
separated<br />
by a discontinuous<br />
conglomerate<br />
The conglomerate:Agnostus<br />
pisiformis,Acrothele<br />
sp. and Hyo lithus sp.<br />
pisi-<br />
Zone of Agnostus<br />
formis<br />
Paradoxides<br />
skiffer<br />
(= shale)<br />
Paradoxides tessini<br />
BRONGNIART(=Paradoxides<br />
paradoxissimus<br />
(WARLENBERG) )<br />
l)According to Westerg~rd( 1947) this thin conglo~erate contains Dictyonema flabelliforme<br />
and an Obolus(probably Obolus apollinis, according to this author), which would place this conglomerate<br />
in the Subzone of Dictyonema flabelliforme typica.<br />
A rock-sequence described by Westergard (1922) from the sea-cliff south-west of Djupvik.<br />
The lithostratigraphic classification used in this paper and the probable position of Westergard's<br />
faunas in the Swedish biozonation are put in juxtaposition.
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