A new species of the asteroid genus Betelgeusia (Echinodermata) from methane seep settings, Late Cretaceous of South Dakota

Betelgeusia brezinai new species (Radiasteridae, Paxillosida, Asteroidea) is described from diversely fossiliferous Upper Cretaceous methane seep deposits of South Dakota. Asteroids are rare at modern chemosynthetic settings, although a hydrothermal vent occurrence is known, and two possible fossil...

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Veröffentlicht in:	Journal of paleontology 2018-03, Vol.92 (2), p.196-206
Hauptverfasser:	Blake, Daniel B, Halligan, William K, Larson, Neal L
Format:	Artikel
Sprache:	eng
Schlagworte:	Asteroidea Asteroids Asterozoa Betelgeusia brezinai Campanian Cretaceous Custer County South Dakota Echinodermata Ecosystems Evaluation Folsom South Dakota Fossils Genera Hydrothermal plumes invertebrate Jurassic Marine invertebrates Mesozoic Methane Morphology Natural history New species new taxa North America Paleontology Paxillosida Pennington County South Dakota Phylogenetics Phylogeny Physical characteristics Pierre Shale Radiasteridae South Dakota Stelleroidea Taxonomy United States Upper Cretaceous Western Interior Zoology
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