16
4
November
707
711
JACKSON, D. E. 1973. On the mode of branching in a new species of Clonograptus. Palaeontology, 16, 4, 707–711.
Dennis E. Jackson The precise nature of dichotomous branching in pyritized specimens of Clonograptus aureus sp. nov. of Tremadocian age is described and is compared with Arenigian species of Loganograptus and Goniograptus from Scandinavia. The manner whereby new branches are generated is analogous to the proximal end development of Didymogmptus minutus. The Palaeontological Association (Free Access)