48 
GRAPTOLITES OF AUSTRALIA 
River) and Upper (Walhalla) divisions. The Jordan River 
beds had been held by Junner® to contain Monograptus in the 
lower portion of the Penenka shales with plant remains in 
the upper portion, while others were of the view that the 
plants were contained within graptolite bearing beds. Chap- 
maid expressed doubts concerning this and believed that 
the plant-bearing Penenka shales were actually of Lower 
Devonian age, and rested on the Walhalla beds, in the lower 
portion of which was a Yeringian or Upper Silurian fauna. 
Skeats, however, confirmed the inferior position of the plant- 
bearing beds in regard to the Walhalla series, and confirmed 
the reported association of plants and graptolites in the 
Jordan River shales. An illustration of this was afforded 
by Keble (128) who identified a graptolite that occurred on 
the same slab as plants as Monograptus riccartonensis and 
relegated the series to the Zone of M. riccartonensis of the 
lower Middle Silurian of Britain. Subsequently a more exten- 
sive series of forms were studied by Elies (139) who referred 
them to the M. nilssoni Zone of the European early Upper 
Middle Silurian. The associated Psilophytales were described 
by Lang and Cookson (139), 
1929. — R. A, Keble and W. N. Benson (111) published a 
correlation table showing that the graptolite succession in 
North-west Nelson, New Zealand, agreed with that in Austra- 
lia. They described and figured a niunber of new species, 
some of which have since been found in Australia. 
O. M. B. Bulman (112) published a useful paper dealing 
with the genotypes of graptolite genera. His comments in 
regard to Australian genera are as follows : 
“ Atopograptus, Harris, 1926, p. 59, genotype A. wood- 
wardi.” . (vide 105.) 
“Cardiograptus, Harris & K., 1916, genotype G. morsus 
Harris & K. Possibly referable to Phylloqraptus Hall.” 
(vide 81.) 
“ Goniograptus, McCoy, 1876, genotype, Didymograptus 
tlmreaui McCoy.” (vide 17.) 
‘'Oncograptus, T. S, Hall, 1914, genotype, O. upsilon, T. S. 
Hall. Possibly best regarded as a subgenus of Didymo- 
graptus, McCoy.” (vide 76.) 
“ Triaenogrnptus, T. S. Hall, 1914, genotype T. neglectus, 
T. S. Hall.” (vide 16.) 
E. W. Skeats (113) recorded graptolites from Tabberab- 
bera at localities indicated on his map of the area. 
1930. — W. J. Harris and R. A. Keble (114) identified from 
6. Junner, N. R., supra cit. 
7. Chapman, F., On the Question of the Devonian Age of the Taniilian Fauna, 
Rep. Aust. Ass. Adv. Sci., xvii. 1926. 
