418 
A.M. De Pomeroy 
part of the Pandanus Platform. The 
microvertebrate faunas in the acid-leached residues 
from these samples have been precisely dated by 
the accompanying conodonts. Fish remains 
recovered include abundant acanthodian scales, 
chondrichthyan scales and teeth, onychodontid 
teeth; rare placoderm scales and bone fragments, 
onychodontid jaw fragments, and palaeoniscoid 
teeth; two onychodontid scale fragments, one 
palaeoniscoid scale, one thelodont scale, and one 
probable dipnoan toothplate. 
The stratigraphic range of the forms reported 
here is compared with that from elsewhere. The 
presence of two forms in the Broken River Group 
extends the range later than that previously 
reported worldwide - the acanthodian 
Cheiracanthoides comptus and the chondrichthyan 
Cladolepis cf. gunnelli. Another acanthodian genus, 
Nostolepis, occurs later at Broken River than all 
other reported localities, with one exception. The 
ranges of the other forms recovered fall within the 
ranges reported from elsewhere (Figure 2). 
SYSTEMATIC PALAEONTOLOGY 
Figured material is lodged in the palaeontological 
collections of the Queensland Museum (prefix 
QMF). Locality information is given by section 
number, followed by metres above base of section 
of lowest and highest productive sample. Figure 1 
gives location of sections. 
Superclass Agnatha 
Subclass Thelodonti 
Order Thelodontida 
Thelodont indet. 
Figures 6M, N 
Material 
One head scale (QMF 31856). 
Locality 
Section SAG/26.8m - Chinaman Creek 
Limestone; see Mawson et al. 1988, figure 13. 
