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Vyatkian Gorizont (uppermost Tatarian) approximately
50 m below the local Permian/Triassic
boundary. Seventeen randomly
orientated footprints were excavated and are
referred to the ichnospecies Brontopus giganteus.
The footprints were emplaced in a reddish-brown
mudstone that was deposited from
suspension beneath shallow ponded water in a
floodplain environment. They were subsequently
cast by the base of the overlying finegrained
sandstone, which was deposited from
a sheet-flood event. The footprints were produced
by a large therapsid, possibly a dinocephalian,
but more probably a dicynodont,
and represent the first ichnological record of
the Therapsida from the Upper Permian of
Russia.
2008010042
中 国 中 - 新 生 代 陆 相 沉 积 中 的 遗 迹 群 落 =
The ichnocoenoses of Mesozoic-Cenozoic
terrestrial deposits of China. ( 中 文 ). 胡 斌 ; 齐
永 安 ; 张 国 成 ; 姜 在 兴 . 沉 积 学 报 , 2002, 20(4):
574-581 2 图 版 .
中 国 中 新 生 代 陆 相 沉 积 地 层 中 的 遗 迹 化
石 已 知 七 大 生 态 类 型 近 40 种 , 按 其 形 成 的
沉 积 环 境 可 大 致 划 分 为 三 大 遗 迹 群 落 , 即
1Scoyenia 遗 迹 群 落 , 代 表 冲 积 平 原 或 三 角
洲 平 原 至 滨 湖 环 境 ;2Macaronichnus-
Planolites 遗 传 群 落 , 主 要 产 生 于 浅 湖 环 境
及 水 下 砂 扇 ( 扇 三 角 洲 、 冲 积 扇 ) 沉 积 环
境 ;3Mermoides-Neonereites 遗 迹 群 落 , 属
典 型 半 深 - 深 湖 环 境 的 产 物 。
2008010043
太 古 代 微 生 物 遗 迹 化 石 的 直 接 测 龄 = Direct
dating of Archean microbial ichnofossils. ( 英
文 ). Banerjee N R; Simonetti A; Furnes H;
Muehlenbachs K et al. Geology, 2007, 35(6):
487-490
Well-preserved Archean pillow lavas from
the ca. 3.35 Ga Euro Basalt of the Pilbara Craton,
Western Australia, contain micron-sized
tubular structures mineralized by titanite (Ca-
TiSiO 4 ) with residual organic carbon preserved
along their margins. Direct U-Pb dating
of titanite in the tubular structures demonstrates
an Archean age. These tubular microstructures
are identical to microbial ichnofossils
in modern basalts, ophiolites, and greenstone
belts, and are interpreted as a biogenic
signature in these ancient rocks. Microbial
colonization of basaltic glass thus appears to
have been part of a deep subsurface biosphere
established early in Earth's history.
分 子 古 生 物 学
2008010044
分 子 古 生 物 学 = Molecular Palaeobiology.
( 英 文 ). Peterson K; Summons R; Donoghue P
J. Palaeontology, 2007, 50(4): 775-809
For more than a generation, molecular biology
has been used to approach palaeontological
problems, and yet only recently have attempts
been made to integrate research utilizing
the geological and genomic records in uncovering
evolutionary history. We codify this
approach as Molecular Palaeobiology for
which we provide a synthetic framework for
studying the interplay among genotype, phenotype
and the environment, within the context
of deep time. We provide examples of
existing studies where molecular and morphological
data have been integrated to provide
novel insights within each of these variables,
and an account of a case study where each
variable has been tackled to understand better
a single macroevolutionary event: the diversification
of metazoan phyla. We show that the
promise of this approach extends well beyond
research into the evolutionary history of animals
and, in particular, we single out plant
evolution as the single greatest opportunity
waiting to be exploited by molecular palaeobiology.
Although most of our examples consider
how novel molecular data and techniques
have breathed new life into longstanding
palaeontological controversies, we
argue that this asymmetry in the balance of
molecular and morphological evidence is an
artefact of the relative ‘newness’ of molecular
data. In particular, palaeontological data provide
unique and crucial roles in unravelling
evolutionary history given that extinct taxa
reveal patterns of character evolution invisible
to molecular biology. Finally, we argue that
palaeobiologists, rather than molecular biologists,
are best placed to exploit the opportunity
afforded by molecular palaeobiology, though
this will require incorporating the techniques
and approaches of molecular biology into their
skill-set.
2008010045
晚 太 古 宙 古 菌 和 地 表 下 热 液 生 物 圈 存 在 的
分 子 证 据 = Molecular evidence of Late Archean
archaea and the presence of a subsurface
hydrothermal biosphere. ( 英 文 ). Ventura
G T; Kenig F; Reddy C M; Schieber J;
Frysinger G S; Nelson R K; Dinel E; Gaines R
B; Schaeffer P. proceedings of the National
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