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Cretaceous ammonites from south-central Papua New Guinea

Created 17/10/2025

Updated 17/10/2025

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Eleven ammonite species, including one new taxon, are described from eleven localities in the south-central Papua New Guinea. One of them, Fauriella boissieri (Pictet), is a member of the Berriasian Tethyan fauna extended to peri-Gondwana. Three large, but fragmentary, ammonites are identified as Puzosia aff. mayoriana (dOrbigny) and Pachydesmoceras sp. B and C, suggesting a Cenomanian age. Acanthoceras rhotomagense (Brongniart), Calycoceras (Newboldiceras) asiaticum (Jimbo), and Cunningtoniceras cunningtoni (Sharpe) indicate more distinctly the Cenomanian age. C. cunningtoni is associated with Desmoceras (Pseudouhligella) aff. ezoanum Matsumoto, both occurring in generally the same area as the type locality of Chimbuites sinuosocostatus (Casey and Glaessner). From another locality a new species, Chimbuites giganteus is described. Chimbuites is regarded as an offshoot of Eopachydiscus, and therefore a member of Pachydiscidae rather than Hoplitidae. A well-preserved specimen of Romaniceras deverianum (dOrbigny) indicates a Turonian age.

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Field Value
Title Cretaceous ammonites from south-central Papua New Guinea
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/97d7e899-ff66-4b9e-b814-5d378a3c594e
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
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}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Cretaceous ammonites from south-central Papua New Guinea". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/cretaceous-ammonites-from-south-central-papua-new-guinea