Gumai Mountains, Sepingtiang Limestone, Sumatra (Jurassic of Indonesia)

Also known as Reef 3082

Where: Indonesia (3.8° S, 103.3° E: paleocoordinates 0.0° S, 120.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Sepingtiang Formation, Late/Upper Jurassic (163.5 - 145.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified limestone

• fringing reef surrounding a volcanic arc
• massive, brecciated and bedded limestones

Size classes: macrofossils, microfossils

Collection methods: peel or thin section,

Primary reference: L. Beauvais. 1989. Upper Jurassic Madreporaria and Calcisponges of Sumatra. in H. Fontaine and S. Gafoer, eds., The pre-Tertiary fossils of Sumatra and their environments. CCOP Technical Publication 19, Bangkok 243-297 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 68202: authorized by Wolfgang Kiessling, entered by Uta Merkel on 08.01.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Textulariina
 Orbitolinacea - Orbitolinidae
 Textulariina - Cuneolinidae
Demospongea
 Axinellida - Milleporellidae
 Axinellida - Cladocoropsidae
Cladocoropsis mirabilis Felix 1907 demosponge
Cladocoropsis memorianaumanni Yabe 1927 demosponge
 Ceractinomorpha - Burgundiidae
"Circoporella semiclathrata" = Burgundia trinorchii
"Circoporella semiclathrata" = Burgundia trinorchii Dehorne 1916 demosponge
Anthozoa
 Scleractinia - Stylinidae
Stylina sp. Lamarck 1816 stony coral
Pseudocoenia sp. d'Orbigny 1850 stony coral
Goniocora sp. Milne-Edwards and Haime 1851 stony coral
 Scleractinia - Dermosmiliidae
Calamophylliopsis flabellum de Blainville 1830 stony coral
Calamophylliopsis crassa Koby 1884 stony coral
 Scleractinia - Faviidae
Myriophyllia sp. d'Orbigny 1849 stony coral
? Myriophyllia rastellina Michelin 1843 stony coral