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The diagnosis of the genus Khetella
Beisel, 1977 is emended, and a new genus,
Cretadmete, is described. Two new
species belonging to these genera, K.
trautscholdi and C. neglecta, are established
from the Upper Hauterivian of
Ulyanovsk (Volga Region).
2010010274
头 足 类 宏 系 统 : 历 史 回 顾 、 研 究 现 状
和 未 解 决 的 问 题 :3. 杆 石 亚 纲 和 菊 石
亚 纲 的 分 类 = The cephalopod macrosystem:
A historical review, the present
state of knowledge, and unsolved problems:
3. Classification of Bactritoidea
and Ammonoidea. ( 英 文 ). Shevyrev A
A. Paleontological Journal, 2006, 40(2):
150-161
A new classification is proposed in
which Bactritoidea and Ammonoidea
are considered as subclasses. The subclass
Bactritoidea includes a single order,
Bactritida. The subclass Ammonoidea
includes ten orders: Anarcestida (suborders
Agoniatitina, Auguritina, Anarcestina,
Gephurocerina, Timanocerina, and
Prolecanitina), Tornocerida, Goniatitida
(with suborders Goniatitina and
Cyclolobina), Praeglyphiocerida, Clymeniida
(with suborders Gonioclymeniina
and Clymeniina), Medlicottiida,
Ceratitida (with suborders Paraceltitina,
Otocerina, Meekocerina, Sagecerina,
Ptychitina, Ceratitina, Pinacocerina,
Megaphyllitina, Arcestina, and Lobitina),
Phyllocerida, Lytocerida (with suborders
Lytocerina and Turrilitina), and Ammonitida
(with suborders Psilocerina,
Haplocerina, Stephanocerina, Cardiocerina,
and Ancylocerina).
2010010275
Auricullina 属 以 及 寒 武 纪
helcionelloid 类 软 体 动 物 的 壳 孔 = On
the genus Auricullina Vassiljeva, 1998
and shell pores of the Cambrian helcionelloid
mollusks. ( 英 文 ). Parkhaev P
Yu. Paleontological Journal, 2006,
40(1): 20-33 9 图 版 .
The genus Auricullina Vassiljeva,
1998 and its type species A. papulosa
Vassiljeva, 1998 are redescribed based
on new well-preserved material, which
allows me to revise the generic diagnosis
and greatly add to the morphological
characterization of the type species. A
new species, A. granulosa sp. nov., is
described from the Botomian of Australia.
The synonymy of the taxa is improved.
The morphology and function of
shell pores in Cambrian univalved mollusks
are discussed.
2010010276
伏 尔 加 河 地 区 Ulyanovsk 一 带 欧 特 里
夫 期 腹 足 类 软 体 动 物 :1. Aporrhaidae
科 = Gastropod mollusks from the
Hauterivian of Ulyanovsk (Volga Region):
1. Family Aporrhaidae. ( 英 文 ).
Blagovetshenskiy I V; Shumilkin I A.
Paleontological Journal, 2006, 40(1):
34-45 6 图 版 .
Data on the detailed stratigraphic
range of eight species of gastropod mollusks
from the Upper Hauterivian of
Ulyanovsk (Volga Region) are presented.
A new genus, Trilemma, is established
within the family Aporrhaidae. Two new
species of this genus, T. russiense sp.
nov. and T. striatocarinatum (Sinzow,
1880), are described.
2010010277
头 足 类 宏 系 统 : 历 史 回 顾 、 研 究 现 状
和 未 解 决 的 问 题 :2. 鹦 鹉 螺 类 的 分 类
= The cephalopod macrosystem: A historical
review, the present state of
knowledge, and unsolved problems: 2.
Classification of nautiloid cephalopods.
( 英 文 ). Shevyrev A A. Paleontological
Journal, 2006, 40(1): 46-54
Major classifications of nautiloid
cephalopods are critically reviewed. It is
suggested that this cephalopod group is
subdivided into 5 subclasses and 17 orders:
Ellesmeroceratoidea (including the
orders Plectronocerida, Protactinocerida,
Yanhecerida, and Ellesmerocerida), En-
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