Citation

Shergold, J.H., 1975. Classification of Pseudagnostus jackel, 1909 (Trilobita: Agnostina). Record  1975/086. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

Eighty-eight species assigned or assignable to Pseudagnostus sensu lato are divided into two broad divisions based on the position of the glabellar node with respect to the anterior or anterolateral glabellar furrows and anterolateral lobes. A spectaculate division in which the node lies to the rear of the anterior furrow and to the rear of the anterolateral lobes, is divided into nine species groups which are recognised by degree of effacement of external morphology, shield shape, border morphology, glabellar morphology, pygidial spinosity, and metamerism. Three spectaculate species groups, bulgosus, communis, and cyclopyga, are referred to Pseudagnostus Jaekel, 1909, sensu stricto; one, contracta, to Pseudagnostina Palmer, 1962; and one, securiger, to Sulcatagnostus Kobayashi, 1937, these latter taxa being regarded as subgenera of Pseudagnostus. "Four other spectaculate species groups, araneavelatus, bilobus, oanadensis, and clavus, are classified with Neoagnostus Kobayashi, 1955, pending clarification of the taxonomic status and concepts of Euplethagnostus Lermontova, 1940, and Pseudorhaptagnostus Lermontova, 1940. Hyperagnostus Kobayashi, 1955 and Machairagnostus. Harrington & Leanza, 1957 are synonymised with Neoagnostus. A papilionate division, in which the axialglabellar node lies between the anterolateral lobes and interrupts the course of the anterior furrow, consists of two species groups, convergens and clarki, which are assigned to Rhaptagnostus Whitehouse, 1936. The gneric name Plethagnostus Clark, 1923 is suppressed.
Google map showing geographic bounding box with values North bound East bound West bound South bound
Downloads
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays

Product Type/Sub Type

nonGeographicDataset - GA Publication - Record

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1975

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Record
palaeontology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Lineage

Legacy product, lineage not available

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

Distributor

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

Metadata File Identifier

a05f7892-7813-7506-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 Date Stamp

1996-10-30

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays