ECB-ART-49559
Zootaxa
2020 Sep 29;48581:zootaxa.4858.1.11. doi: 10.11646/zootaxa.4858.1.11.
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The fossil record of the asteroid (Echinodermata) family Chaetasteridae Sladen, 1889 and subfamily Hyalothricinae Fisher, 1911.
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The Cretaceous asteroid Arthraster is referred to the living family Chaetasteridae on the basis of similarities in ossicular arrangement in the abactinal disc and arms. Chaetasterina, previously identified as a chaetasterid, is transferred to the family Asterinidae, subfamily Hyalothricinae, and constitutes the first fossil record of the subfamily.
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