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Valdai (Early Weischelian) glacial epoch.
The obtained paleocarpological results
were considered in light of palynological
data.
2010010097
新 西 兰 侏 罗 纪 的 植 物 和 气 候 = Vegetation
and climate of the New Zealand Jurassic.
( 英 文 ). Pole M. GFF, 2009,
131(1-2): 105-111
New Zealand's Jurassic plant fossils
are known from non-marine settings in
two terranes: the Murihiku forearc basin
and from a small area on the Rakaia Terrane,
an accretionary prism. These terranes
lay in relatively high latitudes
along the Gondwana margin but their
precise location, latitude and position
with respect to each other is unclear.
The flora was dominated by conifers,
ferns, bennettitaleans, pentoxylaleans
and locally equisetaleans, but it is relatively
depauperate, perhaps reflecting a
high latitude position. Most climate indicators
suggest a warm temperate climate
with rainfall that was not especially
high and that might have been
seasonal at times. Revision of the New
Zealand Jurassic flora is overdue, and
while new genera may be discovered,
species numbers may well decrease.
藻 类
2010010098
再 访 意 大 利 Umbria–Marche: 对 西
特 提 斯 渐 新 世 沟 鞭 藻 孢 囊 事 件 的 精 细
磁 性 地 层 校 准 = Umbria–Marche revisited:
A refined magnetostratigraphic
calibration of dinoflagellate cyst events
for the Oligocene of the Western Tethys.
( 英 文 ). Prossa J; Houbenb A J P; Simaeysc
S V; Williamsd G L; Kotthoffa
U; Coccionie R; Wilpshaarf M; Brinkhuisb
H. Review of Palaeobotany and
Palynology, 2010, 158(3-4): 213-235 4
图 版 .
In order to contribute to the improvement
of biostratigraphic age control for
the Oligocene of the Western Tethys, we
have carried out a high-resolution study
of dinoflagellate cysts from three outcrop
sections in the Umbria–Marche Basin
of Central Italy. All three sections
investigated (Contessa Barbetti Road,
Monte Cagnero and Pieve d'Accinelli)
have magnetostratigraphic age control,
thus allowing us to firmly tie the identified
dinoflagellate cyst bioevents to the
global geomagnetic polarity timescale.
The Oligocene succession of the
Umbria–Marche Basin is marked by recurrent
acmes of Chiropteridium spp.,
Lingulodinium machaerophorum and
Deflandrea spp. that can be correlated
between the sections studied. These
acmes originate from long-distance
transport from near-shore environments
into the pelagic setting represented by
the sections studied, probably triggered
by eustatic sea-level variations. Four
formal dinoflagellate cyst zones of
Wilpshaar et al. (1996; Journal of the
Geological Society, London 153, 553-
561), viz the Hpu, Clo, Dbi, and Ebu
zones are revised. Furthermore we propose
two new subzones for the Dbi zone.
The new taxon Oligokolpoma galeottii is
formally described.
2010010099
南 极 洲 东 部 三 叠 纪 的 一 种 分 类 不 明 的
非 海 相 似 叶 状 体 生 物 = An enigmatic
non-marine thalloid organism from the
Triassic of East Antarctica. ( 英 文 ).
Bomfleur B; Krings M; Kaštovský J;
Kerp H. Review of Palaeobotany and
Palynology, 2009, 157(3-4): 317-325 4
图 版 .
An enigmatic thallophyte (Litothallus
ganovex gen. et sp. nov.) occurs in the
form of compressions with cellular preservation
and associated sheets of complete
cells in non-marine Triassic deposits
in the Transantarctic Mountains, Antarctica.
A combination of microscopic
techniques (i.e. bright field and epifluorescence
microscopy, SEM) was used to
document details of this organism. The
thalli are flat and appear to be composed
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