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

Monica J. Campi, G. R. Shi, Mohd. Shafeea Leman

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)703-717
Number of pages15
JournalJournal of Asian Earth Sciences
Volume20
Issue number6
DOIs
Publication statusPublished - 2002

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age structure
Permian
fauna
brachiopod
field survey
island arc
spatial distribution
sediment

Keywords

  • Geological setting
  • Leptodus
  • Palaeontology
  • Peninsular Malaysia
  • Permian

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Geology

Cite this

The Leptodus Shales of central Peninsular Malaysia : Distribution, age and palaeobiogeographical affinities. / Campi, Monica J.; Shi, G. R.; Leman, Mohd. Shafeea.

In: Journal of Asian Earth Sciences, Vol. 20, No. 6, 2002, p. 703-717.

Research output: Contribution to journalArticle

Campi, Monica J. ; Shi, G. R. ; Leman, Mohd. Shafeea. / The Leptodus Shales of central Peninsular Malaysia : Distribution, age and palaeobiogeographical affinities. In: Journal of Asian Earth Sciences. 2002 ; Vol. 20, No. 6. pp. 703-717.
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