Abstract

The upper part of the Carboniferous Anderson Formation (late Visean to possibly early Namurian), in its type section (Grant Range No. I Well), contains five, possibly six, conchostracan genera: Leaia, Monoleaia, Rostroleaia, Limnadiopsileaia, Cyzicus, and possibly Ellipsograpla. The ribbed genus Hemicycloleaia Raymond is reassigned as a subgenuSi of Leaia, and seven new Carboniferous species are described: Leaia (Leaia) andersonae, Leaia (Hemicycloleaia) rectangellipla, Leaia (Hemicycloleaia) grantrangicus, Leaia (Hemicycloleaia) tonsa, Leaia (Hemicycloleaia) longicosta, Monoleaia australiata, and Limnadiopsileaia carboni/erae. The Lower Triassic Blina Shale, in scattered outcrops (Bell's Ridge, Erskine Hill, Wongil Ridge, Lake lones, and Minnie Range), and in Meda No. I Well, contains three conchostracan genera: Estheriina, Palaeolimnadia, and Cyzicus. Two new subgenera are established: Estheriina (Nudusia), and Palaeolimnadia (Grandilimnadia). Estheriina (Nudusia) is distinguished from E. (Estheriina) lones by the absence of growth bands on the umbonal area; and Palaeolimnadia (Grandilimnadia) is distinguished from P. (Palaeolimnadia) Raymond by its smaller umbonal area-without growth bands-relative to the entire valve, and its lower valve form (height/length) ratio. Four new Triassic species are described: Cyzicus (Lioestheria) erskinehillensis, Palaeolimnadia (Grandilimnadia) medaensis, and Estheriina (Nudusia) blina from the Canning Basin, and Palaeolimnadia (Grandilimnadia) mitchelli from the Sydney Basin. Belgolimnadiopsis allstralensis Novozhilov, present in the Triassic of both the Sydney and Canning Basins, is referred to the subgenus Cyzicus (Lioestheria). The only genus that persisted from the Carboniferous into the Triassic of the Canning Basin was CYZiCllS. Upper Permian palaeolimnadids from the Newcastle Coal Measures of the Sydney Basin were available for passive dispersal westward. The Knocklofty Formation of Tasmania, a correlate of the Blina Shale, also has a Palaeolimnadia-Cyzicus fauna.
Google map showing geographic bounding box with values North bound -10.0 East bound 155.0 West bound 112.0 South bound -44.0
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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)

1979-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

41 Product http://www.ga.gov.au/metadata-gateway/metadata/record/41/

Keywords

GA Publication
Bulletin
palaeontology
AU
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-10.0
East bound
155.0
West bound
112.0
South bound
-44.0

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

Metadata File Identifier

a05f7892-fe7a-7506-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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