Fig. 6From: Kionaster petersonae, n. gen. and sp. (Asteroidea), the first fossil occurrence of the Asterodiscididae, from the Miocene of FloridaKionaster petersonae, n. gen. and sp., holotype, Florida Museum of Natural History UF 148379, Chipola Formation, Florida. Scale barsa, c 5 mm; b, d–j 3 mm. a, ventral view of entire specimen, damaged arm tip to southeast is to northwest of 6a; b, fine surface pustules typical of primary ossicles, north arm of 6a; c, d, ventral of northeast and southeast arms of 6a; d, proximal adambulacrals exposed in lower ambulacra, upper arm with sedimentary debris; e, tip of southwest arm of 6a; distal adambulacrals, a few truncated furrow spines remain; f, tip of southwest arm of 6a, arrangement of distal abactinals, vaulted ambulacral pair at truncated terminus; g, proximal adambulacrals and actinals; first actinal pustule-like structure to right is lighting and surface damage; h, i, two focal levels of northwest arm of 6a, h, upturned tip with adambulacrals, terminal missing; j, north arm of 6a; i, j, lateral profiles of first (upper arrows) and second (lower arrows) SM tubercles, the second SM tubercle to viewer’s left broken in both; apparent notching below 2nd SMs is curvature of tubercle, not grooving between marginal seriesBack to article page