Langgon Island, Langkawi, Kedah (Ordovician of Malaysia)

Where: Malaysia (6.4° N, 99.9° E: paleocoordinates 23.7° N, 133.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Normalograptus persculptus graptolite zone, Tanjong Dendang Formation, Hirnantian (445.2 - 443.4 Ma)

• Lower Detrital Band. Cocks et al. (2005) note that this is Hirnantian, not Silurian.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

• band of graptolite- and trilobite-bearing shales interbedded in limestones

Size class: macrofossils

Primary reference: T. Kobayashi, C. R. Jones, and T. Hamada. 1964. On the Lower Silurian shelly fauna in the Langkawi Islands, Northwest Malaya. Japanese Journal of Geology and Geography 35(1):73-80 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 73357: authorized by Wolfgang Kiessling, entered by Uta Merkel on 13.06.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Murchisoniina - Lophospiridae
Lophospira sp. Whitfield 1886 snail
 Bellerophontida - Bucaniidae
? Megalomphala sp. Ulrich and Scofield 1897 snail
Strophomenata
 Strophomenida -
Hyolitha
 Hyolithida -
Hyolithida indet. Mathew 1962
Trilobita
 Corynexochida - Illaenidae
? Stenopareia sp. Holm 1886 trilobite
 Phacopida - Dalmanitidae
"Dalmanitina malayensis" = Mucronaspis (Songxites) mucronatus
"Dalmanitina malayensis" = Mucronaspis (Songxites) mucronatus Brongniart 1822 trilobite
Pterobranchia
 Graptoloidea - Climacograptidae
Climacograptus sp. Hall 1865 climacograptid