radiolaria - Marum

Bibliography - 1993 Radiolaria 14
accordingly. Further study of these variations within an accurate
chronostratigraphic framework should permit determination of the
rates of these evolutionary changes.
Cordey, F. & Schiarizza, P. 1993. Long-lived
Panthalassic remnant: The Bridge River accretionary
complex, Canadian Cordillera. Geology, 21, 263-266.
Newly identified radiolarians from ribbon chert of the Bridge
River complex in the southeastern Canadian Coast Mountains range
in age from Mississippian to late Middle Jurassic. The Bridge River
complex and the associated Cadwallader arc and Tyaughton and
Methow basins lie between the Intermontane superterrane to the
east and the Insular superterrane to the west. Triassic-Middle
Jurassic development of the Bridge River subduction-accretion
complex records an important component of convergence between
these superterranes.
The time span represented in the Bridge River complex (~170
m.y.), one of the longest known age ranges for chert sedimentation,
suggests that the Bridge River complex contains remnants of a longlived,
potentially far-travelled Panthalassic oceanic domain.
Douzen, K. & Ishiga, H. 1993. Change of paleocurrent
in redox conditions of Lower Jurassic bedded cherts revealed
by azimuth orientation of conical radiolarian shells of
southwest Japan. N. Osaka Micropaleont. spec. Vol., 9, 91-
99. (in Japanese)
Ellis, G. 1993. Late Aptian-early Albian Radiolaria of the
Windalia Radiolarite (type section), Carnarvon Basin,
Western Australia. Eclogae geol. Helv., 86/3, 943-995.
During the Late Aptian-Early Albian Australia was inundated by
a widespread (global?) marine transgression that resulted in
extensive sedimentation of radiolarian-rich facies. This facies is
represented by the Windalia Radiolarite, and to a lesser extent the
overlying Gearle Siltstone in the Carnarvon Basin of Western
Australia. In this study, a detailed radiolarian biostratigraphic
assessment of the type section of the Windalia Radiolarite is
presented. Fifty-nine radiolarian taxa are represented, including one
new genus (Windalia n. gen.) and three new species (Actinomma (?)
pleiadescensis n. sp., Paronaella (?) diastimuspltere n. sp. and
Praeconocaryomma excelsa n. sp.). Many of these taxa have been
recorded previously from Tethyan regions. However, the
assemblages are dominated in abundance by a few non-Tethyan
forms which are also recognized in coeval sediments elsewhere in
Australia, the Indian Ocean and the Weddell Sea. These dominant
taxa are considered to be endemic elements of an "Austral" faunal
realm. Many of the known biostratigraphically important radiolaria
are sparse or absent, but the previously recorded stratigraphic
ranges of several species correspond with the Late (latest) Aptian-
Early Albian age of the Windalia Radiolarite known from ammonites
and belemnites, and from age constraints emplaced by the
underlying and overlying formations. The published ranges of other
radiolarian species from the Windalia Radiolarite, however, conflict
with this age, highlighting the limited detailed knowledge of early
Cretaceous radiolaria and the difficulties in applying '"low latitude"
radiolarian biozonations to the Austral region.
Feng, Q. & Liu, B. 1993a. Permian radiolarian on
southwest Yunnan. Earth Sci., J. China Univ. Geosci., 18/5,
540-564.
A radiolarian fauna, consisting of 32 species belonging to 17
genera, found in Laochang and Nanpan of Lancang County and
Bangsha of Jinghong County, is described in this paper. The fauna
can be divided into 3 assemblage zones. The sequence of these
zones is listed ascendingly as follows: (1) Follicucullus assemblage
zone, collected from the upper part of Laba Group in Nanpan, Late
Maokou - Early Longtan. (2) Neoalbaillella optima assemblage zone,
occurring in the upper part of Laba Group in Nanpan and the middle
part of Laochang Formation in Laochang, Late Longtan. (3)
Neoalbaillella ornithoformis assemblage zone, preserved in the upper
part of Laba Group in Nanpan and the chert interbed of volcanic
rocks in Bangsha, Early Changxing. The geological times of the lithostratigraphic
units are discussed based on the three assemblage
zones.
Feng, Q. & Liu, B. 1993b. A new early Devonian
radiolarian genus from western Yunnan. Sci. China, Ser. B,
36/2, 242-248.
A new radiolarian genus, Eoalbaillella belonging to Albaillellidae
Deflandre emend. Holdsworth, is proposed from the Early Devonian in
Western Yunnan, Southwestern China. Its test is composed of an
imperforate lamellar shell and an elongate triangular framework, of
which the upper part is enclosed by the lamellar shell and the lower
- 96 -
part, without the shell, has the shape of the letter X. The relations
between new genus and other radiolarian genera are studied and the
type species of the genus is described.
Fergusson, C.L., Henderson, R.A., Leitch, E.C.
& Ishiga, H. 1993. Lithology and structure of the Wandilla
Terrane, Gladstone-Yeppoon District, central Qeensland, and
an overview of the Palaeozoic Subduction complex of the
New-England fold belt. Austral. J. Earth Sci., 40/4, 403-414.
The Wandilla terrane consists of, from west to east, the
Doonside Formation and the Wandilla Formation. The Doonside
Formation is dominated by chert and mudstone. Conodonts from a
single locality (Devils Bend) indicate an age in the interval Late
Silurian to Middle Devonian. The Wandilla Formation consists of
mudstone with greywacke, tuff, chert and greenstone. The
greywacke is dominated by volcanic detritus with sparse but
persistent ooliths that suggest contemporaneity with Early
Carboniferous strata of the Yarrol shelf to the west. The Wandilla
terrane is structurally complex with two main deformation events.
The first deformation (D1 ) formed widespread lenticular melange
during offscraping at the toe of a subduction complex. The second
deformation (D2 ) formed a moderately to shallowly east-dipping
cleavage that typically dips less steeply than the north-northwesttrending
D1 structures, and contains a down-dip elongation lineation.
D2 structures were produced by the Late Permian to Triassic Hunter-
Bowen Orogeny.
Lithological attributes and structural styles indicate a
subduction complex setting for much of the Wandilla terrane and
related units farther south. New ages from chert in the subduction
complex of the New England Fold Belt are mainly Early Carboniferous,
consistent with a major accretionary episode in the late Early and
Late Carboniferous. By analogy with the considerably better dated
units of the Japanese accretionary terranes, this major period of
growth may have been a result of collision of a major topographic
feature with the trench (e.g. a mid-ocean ridge).
Fujii, J., Hattori, I. & Nakajima, T. 1993. A study
of radiolarian biostratigraphy and magnetostratigraphy of
early Mesozoic red bedded chert, central Japan. N. Osaka
Micropaleont. spec. Vol., 9, 71-89. (in Japanese)
Funakawa, S. 1993. Late Miocene radiolarian fossils from
eastern Hokkaido, Japan. N. Osaka Micropaleont. spec. Vol.,
9, 293-311. (in Japanese)
Garrison, D.L., Buck, K.R. & Gowing, M.M.
1993. Winter plankton assemblage in the ice edge zone of the
Weddell and Scotia Seas - composition, biomass and spatial
distributions. Deep-Sea Res. Part A, oceanogr. Res. Pap.,
40/2, 311-338.
George, A.D. 1993. Radiolarians in offscraped seamount
fragments, Aorangi range, New Zealand. New Zealand J. Geol.
Geophys., 36/2, 185-199.
Well-preserved radiolarians occur in coloured argillites at two
localities in the Torlesse Terrane exposed in the Aorangi Range. The
coloured argillites which host the radiolarians are associated with
metabasite, and together these rocks are interpreted as remnants of
seamounts which were dismembered immediately before or during
subduction and accretion. Radiolarians from the two Aorangi Range
localities are consistent with a Late Jurassic to Early Cretaceous
age.
Gorican, S. 1993. Jurassic and Cretaceous radiolarian
biostratigraphy and sedimentary evolution of the Budva Zone
(Dinarides, Montenegro). Ph.D. Thesis. University of
Lausanne, 227 p. (unpublished)
The Budva Zone is the northernmost part of a long belt of
Mesozoic basinal sediments, which extend southward to the Krasta-
Cukali Zone in Albania and Pindos-Olonos Zone in Greece. Lowermost
Jurassic to middle Cretaceous formations are defined and described.
105 radiolarian samples collected in ten sections allowed us to date
pelagic sequences and to constrain ages of intervening carbonate
gravity-flow deposits. Systematics of about 200 recorded
radiolarian species is discussed and supported by illustrations. For
the Middle Jurassic to Turonian time interval, a local radiolarian
zonation is constructed by means of Unitary Association Method
(Guex, 1977, 1991). The appearance of 138 taxa was used in the
database. 48 Unitary Associations are established and grouped into
15 distinct "zones". The calibration is based on the existing
zonations. The Budva Zone formations are correlated to timeequivalent
lithologies in the tectonically overthrusting High Karst