Dodecaactinella cf. cynodontota Bengtson and Runnegar, 1990

Wrona, Ryszard, 2004, Cambrian microfossils from glacial erratics of King George Island, Antarctica, Acta Palaeontologica Polonica 49 (1), pp. 13-56 : 22

Dodecaactinella cf. cynodontota Bengtson and Runnegar, 1990 in Bengtson et al. 1990

Fig. 5A, B.

Material.—Three phosphatic replacements of calcitic spicules from etching residues of limestone erratic boulder Me32. Figured specimens, ZPAL Pf. V/35 S23, 26 .

Description.—Triacts, with rays branching dichotomously (Fig. 5A) or trichotomously (Fig. 5B).

Remarks.—These specimens resemble the Early Cambrian type material from the Ajax Limestone at the Mount Scott Range, South Australia ( Bengtson et al. 1990), but their subsidiary rays are stright more like the triactine−based spicules from the early Middle Cambrian Tindall Limestone of the Daly Basin, Northern Territory, Australia ( Kruse 1990), and their surfaces are corroded and rough as a result of the phosphatic replacement.

Occurrence.—Allochthonous Early Cambrian (Botomian) boulders (Me32), King George Island, Antarctica.