Palaeontographica Abteilung A - Band 274

All published Volumes
Lieferung 3-6
Lieferung 1-2

Lieferung 3-6

Palaeontographica Abteilung A Band 274 Lieferung 3-6

2006. 177 pages, 23x31cm, 730 g
Language: English

ArtNo. ES163027403, paperback, price: 226.00 €

in stock and ready to ship

Order form

Review: Zentralblatt Geo. Pal. T. II, Jg. 2008, H. 3/4

A diverse productid fauna from the Artinskian-Kungurian sequences of the northern Tarim Basin (NW China) is described by CHEN & SHI (2006), who provide a detailed systematic and biostratigraphic study of these Lower Permian assemblages collected from six outcrop sections located on the soutwestern and nortwestern sides of the basin.

In the first paragraphs, the biostratigraphical significance of the Lower Permian brachiopod fauna from the Tarim basin is clearly outlined, also in term of its utility for hydrocarbon prospection.

Seven brachiopod biozones are established and defined as acme biozones [erroneously equated by the authors to the assemblage biozone of SALVADOR (1994)]: the lower Artinskian Bruntonella tenuireticulatus and Hystriculina sinica 696 Paläozoologie Biozones, the middle to upper Artinskian Orbicoelia magna Biozone, the uppermost Artinskian Liraplecta richthofeni Biozone, the lower Kungurian Chianella chianensis Biozone, the upper Kungurian Tarimathyris postambigua Biozone and the uppermost Kungurian Liraplecta aspera Biozone. Their age is supported in part by associated conodonts and fusulinids and by correlation with faunas from South China, North China, Thailand, Urals, and the Russian Platform.

The core of the monograph is represented by the Systematic Paleontology section where 34 brachiopod species from 30 genera are described, of which five species, two subgenera and one genus are new based on the study of about 200 specimens.

The new species are Dyschrestia takelamaganensis sp. nov., based on 15 specimens and characterized by a large size and rugae only on ears; Marginifera (Arenaria) yinjishaensis sp. nov., based on 9 specimens and characterized by an elongate outline, narrow umbo and absence of ventral sulcus; Chaoiella ustritskyi sp. nov., based on 2 specimens, described as a large, strongly geniculated species with fine but distinct costellae and rugae; Coolkilella pseudovilliersi sp. nov., based on 9 specimens and characterized by large size, an elongate suboval to trigonal outline, relatively coarse ribs and few spines; Cancrinella quadrata sp. nov., based on 7 specimens, described as having dense and strong rugae and coarse ventral spines.

Two new subgenera are proposed to include different groups of Asian Permian species of Marginifera WAAGEN, 1884: Marginifera (Arenaria) subgen. nov. for small to medium sized species with weak ribbing and evenly distributed ventral spines, i.e. M. (A.) arenaria GRANT, 1976, M. (A.) ovalis WAAGEN, 1884, M. (A.) excavata WAAGEN, 1884, M. (A.) echinata WAAGEN, 1884, M. (A.) transversa WAAGEN, 1884, and M. (A.) elongatus HUANG, 1932. The second new subgenus Marginifera (Nesiotia) subgen. nov. has been erected for the small species with small ears and few spines as in M. (N.) nesiotes GRANT, 1976.

The genus Bruntonella gen. nov. is proposed based on the species Dictyoclostus tenuireticulatus USTRITSKY, 1960 and placed in the tribe Reticulatiini LAZAREV, 2000. Bruntonella is described as closely allied to Reticulatia MUIR-WOOD & COOPER, 1960, differing by a less strong reticulation, absence of dorsal spines anda deeper corpus cavity.

The genus Pseudoavonia WANG in ZHANG et al. 1983 is revised and its internal characters, previously unknown, are described in more detail; also it is cleared its relationship to Liosotella COOPER, 1953. Based on its cardinal process, marginal ridges and the lack of dorsal spines the genus is transferred from the Costispiniferini MUIR-WOOD&COOPER, 1960 to the Marginiferini STEHLI, 1954.

The poorly known genus Kepingia WANG & YANG, 1998 is also emended and provided with a more detailed description; it is included in the Tribe Liraplectini CHEN&SHI, 2001.

For what concerns the illustration of the brachiopod fauna, the fifteen plates are of very good quality and they well display the features and the significance of the Lower Permian productid fauna of the Tarim Basin.

L. ANGIOLINI

Zentralblatt Geo. Pal. T. II Jg. 2008, H. 3/4

Lieferung 1-2

Palaeontographica Abteilung A Band 274 Lieferung 1-2

2006. 70 pages, 23x31cm, 400 g
Language: English

ArtNo. ES163027401, paperback, price: 102.00 €

in stock and ready to ship

Order form

Bespr.: Zentralblatt Geol. Pal. T. II Jg. 2008, H.1-2

Aus marinen Flachwasserablagerungen des Unter-Jura (?spätes Hettangium bis frühes Sinemurium) im Südosten Hunans (Südchina), beschreibt der Verf. vier kleine Fossilvergesellschaftungen, in denen Muscheln dominieren und die sich in ihrer taxonomischen Zusammensetzung deutlich voneinander unterscheiden. Die beiden Vergesellschaftungen aus der unteren Xintamen-Formation deuten auf ruhige Ablagerungsbedingungen hin, während die beiden anderen der oberen Xintamen-Formation auf Strömungseinfluss beziehungsweise die Ereignisse während eines Sturmereignisses hinweisen. Die Faunen zeigen taxonomische Beziehungen zu altersgleichen tethyalen und zircumpazifischen, die Verbreitung der beschriebenen Arten ist jedoch auf Süd-China und angrenzende Gebiete beschränkt. der Verf. beschreibt die neuen Arten der in Unter-Jura Südchinas seltenen Familie der Parallelodontidae: Cosmetodon xiapingensis n.sp. und C. xintianmenensis n. sp. und stellt des Weiteren Pseudosaxicava huanensis n. sp., P. palaeosinensis n. sp., Nicaniella grabaui n. sp., Protocardia mushuiwanensis n. sp., Tancredia nanlingensis n. sp., und Pleuromya xiangensis n. sp., neu auf. Die Revision der bereits beschriebenen Arten führte, insbesondere bei den Pectiniden und Hiatelliden, zu einer Reduktion der Artenanzahl.

G. TICHY

Zentralblatt Geol. Pal. T. II Jg. 2008 H. 1-2

Original paper

Early Jurassic shallow-marine bivalves from Xiaping,southern Hunan,China**

[Frühjurassische flachmarine Muscheln aus Xiaping,Süd-Hunan,China]

Stiller, Dr. Frank

p. 1-70, published: Feb 27, 2006
5 tables, 4 plates

Original paper

Early Jurassic shallow-marine bivalves from Xiaping,southern Hunan,China**

[Frühjurassische flachmarine Muscheln aus Xiaping,Süd-Hunan,China]

Stiller, Dr. Frank

p. 1-70, published: Feb 27, 2006
5 tables, 4 plates

P
= can be downloaded

O
= Open Access (paper can be downloaded for free)