Abstract

The septimembrate conodonts Acodus triangularis (Ding in Wang, 1993) and Prioniodus honghuayuanensis n.sp., are described and illustrated from Guizhou, South China where both species are widely distributed in Lower Ordovician strata. The adenticulate A. triangularis, which ranges through the middle and upper parts of the Honghuayuan Formation, is morphologically more primitive than the denticulate P. honghuayuanensis, which is present from the uppermost Honghuayuan Formation into the lower part of the succeeding Dawan Formation. Prioniodus honghuayuanensis, elements of which were previously ascribed to Oepikodus communis (Ethington & Clark, 1964), appears to be closely related to a species of Prioniodus from the basal Whiterockian of Utah, North America.

 
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Bibliographic Data

Short Form
Zhen et al., 2005, Rec. Aust. Mus. 57(2): 303–320
Author
Yong Yi Zhen; Jianbo Liu; Ian G. Percival
Year
2005
Title
Revision of two prioniodontid species (Conodonta) from the Early Ordovician Honghuayuan Formation of Guizhou, South China
Serial Title
Records of the Australian Museum
Volume
57
Issue
2
Start Page
303
End Page
320
DOI
10.3853/j.0067-1975.57.2005.1448
Language
English
Date Published
08 June 2005
Cover Date
08 June 2005
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
CONODONTS; ORDOVICIAN
Digitized
08 June 2005
Available Online
08 June 2005
Reference Number
1448
EndNote
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Complete Work
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