
TY  - JOUR
A1  - VandenBerg, A.H.M. 
T1  - Extraordinary dimorphism in the Phyllograptid <i>Harrisgraptus</i> n. gen. from the early Bendigonian (Early Floian, Early Ordovician) of Victoria, Australia
JF  - Proceedings of the Royal Society of Victoria
JO  - Proc. R. Soc. Vic.
Y1  - 2019
VL  - 131
IS  - 1
SP  - 34
EP  - 41
KW  - 
UR  - https://doi.org/10.1071/RS19004 
N2  - Two graptolites from the early Bendigonian (Early Floian, Early Ordovician) formerly placed in Didymograptus, D. eocaduceus Harris, 1933 and D. hemicyclus Harris, 1933, are shown to be members of a single population that shows extraordinary dimorphism. This is mainly expressed in the tubarium habit which ranges from strongly reclined to horizontal, and in stipe width which changes systematically with tubarium shape. The population is placed in the new genus Harrisgraptus and placed in the family Phyllograptidae, characterised by well-developed sicular and thecal rutella. 
ER  -

