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ponica Nomura and Hatai, 1936 and Lucina
japonica Ozaki, 1958 are junior synonyms of
E. californica.
2008010185
越 南 北 部 Song Da 盆 地 、An Chau 盆 地 下
三 叠 统 双 壳 类 化 石 = Lower Triassic bivalve
fossils from the Song Da and An Chau Basins,
North Vietnam. ( 英 文 ). Komatsu T; Dang T H.
Paleontological Research, 2007, 11(2): 135-
144
In North Vietnam, the Hua Tat, Pa Khom
and Lang Son Formations yield abundant
Lower Triassic bivalves. The occurrence of
Eumorphotis sp. cf. E. multiformis, represents
the first fossil reported from the Hua Tat Formation,
while Claraia aurita, C. concentrica,
and C. intermedia multistriata are found in the
upper Lang Son Formation. The Pa Khom
Formation contains C. intermedia multistriata,
Claraia sp., and Lopha sp. The occurrence of
C. intermedia multistriata indicates that the Pa
Khom Formation and the upper Lang Son
Formation are Olenekian in age. These
Claraia spp. are found in wave-dominated
nearshore deposits characterized by hummocky
cross stratification and wave-ripple
laminations, although Claraia in other areas is
generally found in deep-sea mudstone.
2008010186
近 5000 年 来 冲 绳 岛 一 水 下 洞 穴 中 的 穴 居 双
壳 类 动 物 群 变 化 及 环 境 变 迁 = Changes in
cavernicolous bivalve assemblages and environments
within a submarine cave in the Okinawa
Islands during the last 5,000 years. ( 英
文 ). Kitamura A; Hiramoro M; Kase T; Yamamoto
N; Amemiya M; Ohashi S-I. Paleontological
Research, 2007, 11(2): 163-182
Although many workers have investigated
the ecological and evolutionary significance of
cryptic organisms and short-term (seasonal to
annuals) fluctuations in environments and
fauna within submarine caves, no studies have
examined millennia-scale variations in the
organisms and environments. In this study, we
analyzed the sedimentary characters and species
composition of bivalves from surface and
cored sediments within the Daidokutsu submarine
limestone cave on the fore-reef slope
of Ie Island, off the island of Okinawa, Japan.
The sediments in the central and innermost
area of the cave consist of carbonate mud.
Their deposition indicates that a still-water
environment prevailed over the past 5,000
years. Analysis of the spatial and temporal
distribution of the bivalves shows that species
living in the innermost area of the cave became
dominant over at least the past 5,000 yrs,
while species living near the entrance of the
cave declined in abundance. This indicates
that the environmental conditions of the innermost
cave area gradually spread to the entrance
of the cave. We believe that this phenomenon
is explained by spreading nutritional
deficiency within Daikodutsu cave.
2008010187
侏 罗 纪 箭 石 分 布 模 式 : 南 极 和 阿 根 廷 新 材
料 的 意 义 = Jurassic belemnite distribution
patterns: implications of new data from Antarctica
and Argentina. ( 英 文 ). Doyle P, Kelly
S R A, Pirrie D, Riccardi A C. Alcheringa,
1997, 21(3/4): 219-228
Belemnites are nektopelagic cephalopods
which developed a widespread pattern of distribution
in the Jurassic, and most authors
have accepted that their centre of origin was
Europe. Available data suggest that the belemnites
developed a global distribution only
in the Toarcian, some 15 Ma after their first
appearence in the European Hettangian. Development
of the Boreal and Tethyan belemnite
realms took place in the Middle Jurassic
and continued through to the Cretaceous. New
data from Argentina and the Antarctic Peninsula
reaffirms the development of the global
distribution of belemnites in the Toarcian, and
sheds new light on the biogeographical patterns
for the Jurassic of the southern hemisphere.
This has considerable implications for
understanding the development of faunal
realms in the Mesozoic.
2008010188
阿 根 廷 巴 塔 哥 尼 亚 中 部 Gran Barranca 地
区 中 始 新 世 陆 生 Charopidae 科 微 腹 足 类 =
Middle Eocene land microgastropods
(Charopidae) from Gran Barranca (Central
Patagonia, Argentina).. ( 其 他 ). Miquel S E;
Bellosi E S. Ameghiniana, 2007, 44(1): 121-
131
New land microgastropods Charopidae
were found in the Rosado carbonate paleosol
(late Middle Eocene, Mustersan South American
Land Mammal Age), of the Sarmiento
Formation at the Gran Barranca locality (Chubut
province, Argentina). The most ancient
fossils of Rotadiscus and Lilloiconcha and the
first Eocene record of Radiodiscus are described.
Most of the fossil taxa are compared
with extarit species (Rotadiscus amancaezensis
(Hidalgo), Stephadiscus celinae (Hylton
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