Where: Western Highland, Papua New Guinea (5.6° S, 144.1° E: paleocoordinates 36.0° S, 104.6° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Kuta Formation, Rhaetian (208.5 - 201.3 Ma)
• In places the limestone appears to grade laterally into calcareous breccia containing fragments of metamorphic rocks. The limestone rests on, and in places grades laterally into, a coarse, calcerous arkose, which in turn unconformably overlies the Kubor Granodiorite of the Omung Metamorphics. The formation is overlain by either the Late Jurassic Maril Shale or the Early Crestaceous Kondake Tuff.
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; limestone
Size class: macrofossils
Collection methods: In the present study the author have had access to the collection reported on by Rickwood (1955) and subsequent material collected by Bain et al. (1970) and by Brown and Skwarko in 1972. Much of Rickwood material was calcined so that the specimens could be extracted with greater ease. Nevertheless it has still proved suitable for sectioning, and by further breaking up some of the blocks more genera have been obtained.
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•The Rickwood specimens are unnumbered, but some of them are in the original labelled boxes so that it is possible to refer to the individuals he used. The following notes are based on these specimens, supplemented where possible by others from the same collection and from the more recent collections.
Primary reference: S. K. Skwarko, R. S. Nicoll, and K. S. W. Campbell. 1976. The Late Triassic molluscs, conodonts, and brachiopods of the kuta Formation, Papua New Guinea. Journal of Austrialian Geology and Geophysics 1:219-230 [D. Bottjer/N. Bonuso/N. Bonuso]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 42523: authorized by David Bottjer, entered by Nicole Bonuso on 31.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Rhynchonellata | |
Sinucosta sp. Dagys 1963 | |
Zugmayerella sp. Dagys 1963 | |
Costirhynchia sp. Buckman 1917 | |
? Hagabirhynchia sp. Jefferies 1961 | |
Stolzenburgiella sp. Bittner 1902 | |
Zeilleria sp. Bayle 1878 | |
"Dielasma" cf. itaitubense Derby 1874
"Dielasma" cf. elongatum von Schlotheim 1816 |