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Cholaster whitei

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Journal Article

Revision of the unusual Carboniferous ophiuroid Cholaster (Echinodermata) and remarks on skeletal differentiation within the Asterozoa

Daniel B. Blake, Merlynd K. Nestell
Published: 01 July 2019
Journal of Paleontology (2019) 93 (4): 753–763.
DOI: https://doi.org/10.1017/jpa.2018.109
...Daniel B. Blake; Merlynd K. Nestell Abstract Newly discovered, relatively well-preserved specimens of Cholaster whitei n. sp. (Ophiuroidea, Echinodermata) are described from a small area of extensive outcrop of the Bangor Limestone (Mississippian, Chesterian) exposed on the edge of Cedar Creek...
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<span class="search-highlight">Cholaster</span> <span class="search-highlight">whitei</span> n. sp., Bangor Limestone, Mississippian, Alabama. ( 1 ) T...

Cholaster whitei n. sp., Bangor Limestone, Mississippian, Alabama. ( 1 ) T...

Published: 01 July 2019
Figure 2. Cholaster whitei n. sp., Bangor Limestone, Mississippian, Alabama. ( 1 ) The three specimens of Figure 2.2–2.4 clustered on a small block; ( 2 ) paratype PRIP 20002, specimen to upper left of Figure 2.1 , rotated slightly counterclockwise; ( 3 ) paratype PRIP 20004, specimen
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( 1–5 ) <span class="search-highlight">Cholaster</span> <span class="search-highlight">whitei</span> n. sp. ( 1–3 ) holotype PRIP 20000, form and arr...

( 1–5 ) Cholaster whitei n. sp. ( 1–3 ) holotype PRIP 20000, form and arr...

Published: 01 July 2019
Figure 3. ( 1–5 ) Cholaster whitei n. sp. ( 1–3 ) holotype PRIP 20000, form and arrangement of dorsal disk extraxials and central disk ossicles; ( 1 ) smaller ossicles at tip of upper arm suggest truncation and regeneration during life, see Figure 4.8 ; ( 2 ) delicate dorsal arm ossicles
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<span class="search-highlight">Cholaster</span> <span class="search-highlight">whitei</span> n. sp. ( 1, 5–8 ), holotype PRIP 20000, see also Figure ...

Cholaster whitei n. sp. ( 1, 5–8 ), holotype PRIP 20000, see also Figure ...

Published: 01 July 2019
Figure 4. Cholaster whitei n. sp. ( 1, 5–8 ), holotype PRIP 20000, see also Figure 3.1–3.3 ; ( 1 ) arrangement of dorsal disk ossicles, central enlarged ossicles not as clearly enlarged as in C. peculiaris ; smaller ossicles around central grouping transiting to aligned series of enlarged
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<span class="search-highlight">Cholaster</span> peculiaris Worthen and Miller, 1883 ; PRIP 2480. ( 1 ) Entire s...

Cholaster peculiaris Worthen and Miller, 1883 ; PRIP 2480. ( 1 ) Entire s...

Published: 01 July 2019
Figure 1. Cholaster peculiaris Worthen and Miller, 1883 ; PRIP 2480. ( 1 ) Entire specimen; ( 2 ) disk rotated ≈ 72° from Figure 1.1 , enlarged mid-disk ossicles enclosed by irregular smaller ossicles, the latter not as uniform as those of C. whitei n. sp.; ( 3 ) interbrachium between two