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Ocalaster timucum

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Journal Article

IMPLICATIONS FOR THE STUDY OF FOSSIL ASTEROIDEA (ECHINODERMATA) OF NEW GENERA AND SPECIES FROM THE EOCENE OF FLORIDA

DANIEL B. BLAKE, ROGER W. PORTELL
Published: 01 July 2009
Journal of Paleontology (2009) 83 (4): 562–574.
DOI: https://doi.org/10.1666/08-097R.1
...DANIEL B. BLAKE; ROGER W. PORTELL Abstract Oyenaster oblidus , Ocalaster timucum , and Ocalaster seloyi are new genera and species of the family Goniasteridae (Asteroidea) described from the Eocene Ocala Limestone of Florida. Although the fossil record of asteroids is sketchy, goniasterids appear...
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Figure 5. Ocalaster timucum n. gen. and sp., holotype, Florida Museum of Natural History UF 20565, Lower Ocala Limestone, Florida. Scale bars all 5 mm. 1, Dorsal view of entire specimen, grooved ridge-like feature in upper center is a sand dollar fragment; 2, lower interbrachium of 5.1; three SM flanked by IM showing dorsal aspect; abactinals with accessories, a few with basal facets; 3, convergence of marginals suggests a narrow, elongate arm; to right is marginal series of 5.2; 4, three each SM and IM in abradial view, series of 5.2; 5, SM series, abactinals, some with basal facets, pedicellariae alveolae; marginal series to left of 5.3; 6, abactinals, basal facets, pedicellariae alveolae, circular spine bases (arrow); 7, lateral view of SM-IM pair, abradial right; 8, dorsal view of two SM, that to left with two circular bases toward abradial (upward) edge, fine accessory bases over remainder of surface; 9, slightly oblique view of SM to left, interior of IM to right; abradial to top of photograph; side faces are deep and adradial faces have distinct facets.

Figure 5. Ocalaster timucum n. gen. and sp., holotype, Florida Museum of ...

Published: 01 July 2009
Figure 5. Ocalaster timucum n. gen. and sp., holotype, Florida Museum of Natural History UF 20565, Lower Ocala Limestone, Florida. Scale bars all 5 mm. 1 , Dorsal view of entire specimen, grooved ridge-like feature in upper center is a sand dollar fragment; 2 , lower interbrachium of 5.1
Image
Figure 1. Map of Florida showing type localities of Oyenaster oblidus, Ocalaster timucum, and O. seloyi n. gen. and spp., FLMNH IP AL004, Alachua County, Newberry Quadrangle, USGS 7.5′, 1988; T9S, R17E; and CI009, Citrus County, Yankeetown Quadrangle, USGS 7.5′, 1988; T17S, R16E. Also shown is FLMNH IP CI001 (Citrus County, Yankeetown Quadrangle, USGS 7.5′, 1988, T17S, R16E) site of large ossicular concentration.

Figure 1. Map of Florida showing type localities of Oyenaster oblidus , O...

Published: 01 July 2009
Figure 1. Map of Florida showing type localities of Oyenaster oblidus , Ocalaster timucum , and O. seloyi n. gen. and spp., FLMNH IP AL004, Alachua County, Newberry Quadrangle, USGS 7.5′, 1988; T9S, R17E; and CI009, Citrus County, Yankeetown Quadrangle, USGS 7.5′, 1988; T17S, R16E. Also shown