Australian Museum Journal Revision of two prioniodontid species (Conodonta) from the Early Ordovician Honghuayuan Formation of Guizhou, South China

Shortform:
Zhen et al., 2005, Rec. Aust. Mus. 57(2): 303–320
Author(s):
Zhen, Yong Yi; Liu, Jianbo; Percival, Ian G.
Year published:
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 package:
EndNote file
Title page:
Title page (34kb PDF)
Complete work:
Complete work (5000kb PDF)

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.