The Leptodus Shales of central Peninsular Malaysia:: distribution, age and palaeobiogeographical affinities

被引:20
作者
Campi, MJ
Shi, GR
Leman, MS
机构
[1] Deakin Univ, Sch Ecol & Environm, Burwood, Vic 3125, Australia
[2] Univ Kebangsaan Malaysia, Sch Environm Sci & Nat Resources, Bangi 43600, Malaysia
关键词
geological setting; Leptodus; palaeontology; Peninsular Malaysia; Permian;
D O I
10.1016/S1367-9120(02)00004-4
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The terms 'Leptodus Shales' and 'Leptodus Beds' have been used to describe a rich brachiopod bearing unit within the Permian argillaceous facies of the Central Belt of Peninsular Malaysia. To date there has been no formal description of this unit regarding its age, spatial distribution or faunal composition. A review of previous literature, backed by recently collected data from our field surveys and biostratigraphical studies reveals that there is a sequence of fossiliferous assemblages within the Leptodus Shales, which range in age from Middle Permian to possibly early Late Permian and extend geographically from southern Kelantan to southern Pahang, Peninsular Malaysia. These assemblages are found in argillaceous sediments which are often highly tuffaceous, and in northern Pahang are associated with pyroclastic volcanics of probable island-arc origin. The faunas are of Palaeo-equatorial affinity and are taxonomically close to faunas in Indochina, such as the Sisophon fauna in Cambodia. Typical elements include Vediproductus cf. punctatiformis (Chao), Transennatia gratiosa (Waagen), T termierorum Sone, Leman and Shi, Uncuninellina timorensis (Beyrich), Leptodus richthofeni Kayser, L. cf. tenuis (Waagen), Leptodus nobilis (Waagen), Gubleria aff. ninglangensis Fang and Jiang, and Spyridiophora gubleri Termier and Termier. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:703 / 717
页数:15
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