Abstract

Middle and Late Jurassic and some Early Cretaceous Belemnitida collected mostly within the region covered by the Ok Tedi and Mianmin 1:250 000 sheets in the central highlands of Papua New Guinea are identical with those of eastern Indonesia. Conodicoelites kalepuensis confirms that part of the Maril Formation is Bathonian in age. Members of the Belemnopsis moluccana-B. galoi-B. stolleyi lineage which spans the Late Jurassic of Indonesia confirm that the Imburu Mudstone and Upper Maril Formation are Oxfordian- Late Tithonian in age. Hibolithes australis n. sp. spans the Late Tithonian-earliest Berriasian interval; Belemnopsis jonkeri and Hibolithes gamtaensis n. sp. range from Berriasian to Valanginian confirming these ages for the Toro Sandstone, basal Ieru Formation and basal Tubu unit. Hibolithes taylori n. sp. (Aptian- Albian), Parahibolites jeraminensis n. sp. (Albian) and Dimitobelus macgregori (Albian- Cenomanian) are present in the Upper Ieru Formation and Chim Formation. The presence of Hibolithes taylori in outcrops previously mapped as Toro Formation suggests that the Aptian- Albian Omati Unit has been wrongly identified as Toro Formation in some instances.
Google map showing geographic bounding box with values North bound -3.53 East bound 143.92 West bound 141.01 South bound -5.85
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Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1990-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

81270 Product http://www.ga.gov.au/metadata-gateway/metadata/record/81270/

Keywords

GA Publication
Journal
PNG
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-3.53
East bound
143.92
West bound
141.01
South bound
-5.85

Lineage

Unknown

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

Source data not available.

Metadata File Identifier

fae9173a-70d3-71e4-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
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