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Fig. 6 | Swiss Journal of Palaeontology

Fig. 6

From: Kionaster petersonae, n. gen. and sp. (Asteroidea), the first fossil occurrence of the Asterodiscididae, from the Miocene of Florida

Fig. 6

Kionaster 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 series

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