Abstract

Three new beyrichiacean genera are described from the type section of the Buttons beds, latest Devonian, along the eastern bank of the Ord River: Notoscapha gen. nov. (type species N. oepiki sp.nov.) from the lower part of the section below 120 m, Parabouchekius gen. nov. (type species P. martinssoni sp. nov.) and Katatona gen. nov. (type species K. romei sp. nov.) both from the middle part of the section 120-200 m. They lack traces of a dolonoid closing mechanism, and are interpreted, within Martinssons scheme of beyrichiacean phylogeny, as advanced treposellids. The posterocentral site of a possible rudimentary crumina in a presumed female specimen of Katatona romei may indicate a syllobial origin for the crumina in those genera having a similar type of dimorphism. This type of cruminal dimorphism is present in species from the Late Devonian of the European USSR that have been assigned to Aparchites and to the related genera Bouchekius, Copelandites, and Reversoscapha. The distribution of species of Katatona, Bouchekius, and Parabouchekius is discussed to evaluate their potential for long-distance correlation in the latest Devonian (ie., late Famennian and Strunian). At present, Katatona indicates a Strunian (Fa2d, Tnla) age, and its presence in the Buttons beds supports the age assignment recently proposed on miospore evidence.
Google map showing geographic bounding box with values North bound -14.5 East bound 129.5 West bound 128.0 South bound -17.0
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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)

1984-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

81178 Product http://www.ga.gov.au/metadata-gateway/metadata/record/81178/

Keywords

GA Publication
Journal
WA
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-14.5
East bound
129.5
West bound
128.0
South bound
-17.0

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-7077-71e4-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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