Untitled

2010010410
波 兰 中 泥 盆 世 早 期 四 足 动 物 的 足 迹 =
Tetrapod trackways from the early Middle
Devonian period of Poland. ( 英 文 ).
Niedźwiedzki G; Szrek P; Narkiewicz K;
Narkiewicz M; Ahlberg P E. Nature,
2009, 463(7277): 43-48
The fossil record of the earliest
tetrapods (vertebrates with limbs rather
than paired fins) consists of body fossils
and trackways. The earliest body fossils
of tetrapods date to the Late Devonian
period (late Frasnian stage) and are preceded
by transitional elpistostegids such
as Panderichthys and Tiktaalik that still
have paired fins. Claims of tetrapod
trackways predating these body fossils
have remained controversial with regard
to both age and the identity of the track
makers. Here we present well-preserved
and securely dated tetrapod tracks from
Polish marine tidal flat sediments of
early Middle Devonian (Eifelian stage)
age that are approximately 18 million
years older than the earliest tetrapod
body fossils and 10 million years earlier
than the oldest elpistostegids. They force
a radical reassessment of the timing,
ecology and environmental setting of the
fish–tetrapod transition, as well as the
completeness of the body fossil record.
鱼 类
2010010411
来 自 图 瓦 晚 泥 盆 世 沟 鳞 鱼 的 新 资 料 =
New data on late Devonian bothriolepidid
Placoderms (Pisces, Antiarchi)
from Tuva. ( 英 文 ). Moloshnikov S V.
Paleontological Journal, 2009, 43(5):
558-568 6 图 版 .
Bothriolepis sibirica Obruchev and B.
dorakarasugensis sp. nov. (Pisces, Antiarchi)
from the Frasnian beds (Upper
Devonian) of central Tuva are described.
These species differ from the majority of
congeners in the pattern of contact between
the anterior mediodorsal and anterior
dorsolateral, i.e., in the anterior part
of contact, the anterior medio-dorsal
overlies the anterior dorsolateral, while,
in the posterior part, they change places.
New data supplement the description of
B. sibirica Obr. and show certain age
changes in trunk shield bones of this
species.
2010010412
来 自 副 特 提 斯 东 部 地 区 的 早
Sarmatian 期 鱼 = On early Sarmatian
fishes from the Eastern Paratethys. ( 英
文 ). Bannikov A F. Paleontological
Journal, 2009, 43(5): 569-573 2 图 版 .
Early Sarmatian bony fish assemblages
from the Pshekha River (northern
Caucasus) and the village of Naslavcea
(northern Moldova) are compared. It is
proposed that, in the Early Sarmatian,
connection between the North Caucasian
and Moldavian basins was hampered
and the two fish localities were formed
under different conditions. The impoverished
taxonomic composition of Sarmatian
fishes from the Eastern Paratethys is
attributable to unfavorable chemical
composition (increased alkalinity) rather
than to low salinity.
2010010413
俄 罗 斯 欧 洲 部 分 南 部 地 区 泥 盆 纪 胴 甲
鱼 = Devonian antiarchs (Pisces, Antiarchi)
from central and Southern European
Russia. ( 英 文 ). Moloshnikov S V. Paleontological
Journal, 2008, 42(7): 691-
773 53 图 版 .
Antiarchi (Pisces, Placodermi) from
the Devonian of central and southern
European Russia (Central Devonian
Field) are studied. Antiarchs belong to
three families, the Asterolepididae, Remigolepididae
(suborder Asterolepidoidei),
and Bothriolepididae (suborder
Bothriolepidoidei). The diagnoses of the
order, two suborders, three families, and
five genera (two of which are new) are
given. Sixteen species, including one
new, are described; ten taxa are determined
in open nomenclature. Morphological
structures of representatives of
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