Abstract

The rostral portion of a crocodilian skull, from the Pleistocene cave deposits of Tea Tree Cave, near Chillagoe, north Queensland, is described as the type of the new genus and species, Quinkana fortirostrum. The form of the alveoli suggests that a ziphodont dentition was present. A second specimen, referred to Quinkana sp. from the Pleistocene cave deposits of Texas Caves, south Queensland, confirms the presence of ziphodont teeth. Isolated ziphodont teeth have also been found in eastern Queensland from central Cape York Peninsula in the north to Toowoomba in the south. Quinkana fortirostrum is a eusuchian, probably related to Pristichampsus. The environments of deposition of the beds yielding ziphodont crocodilians do not provide any evidence for (or against) a fully terrestrial habitat for these creatures. The somewhat problematic Chinese Hsisosuchus chungkingensis shows three apomorphic sebecosuchian character states, and is thus considered a sebecosuchian.

 
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Bibliographic Data

Short Form
Molnar, 1982, Rec. Aust. Mus. 33(19): 803–834
Author
R. E. Molnar
Year
1982
Title
Pleistocene ziphodont crocodilians of Queensland
Serial Title
Records of the Australian Museum
Volume
33
Issue
19
Start Page
803
End Page
834
DOI
10.3853/j.0067-1975.33.1981.198
Language
English
Date Published
31 January 1982
Cover Date
31 October 1981
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
REPTILIA; PLEISTOCENE; FOSSIL
Digitized
14 January 2009
Available Online
09 March 2009
Reference Number
198
EndNote
/Uploads/Journals/17568/198.enw
Title Page
/Uploads/Journals/17568/198.pdf
File size: 117kB
Complete Work
/Uploads/Journals/17568/198_complete.pdf
File size: 5175kB