Asterotrygon
Asterotrygon is an extinct genus of stingray from the Eocene Green River Formation in Wyoming. Several complete skeletons representing juveniles, adults, males and females have been uncovered from the late early Eocene Fossil Butte Member of the formation. The type and only species, A. maloneyi, was named in 2004 on the basis of these fossils. Another stingray, Heliobatis, is also known from the formation. Asterotrygon is a primitive stingray closely related to the living family Urolophidae whose ancestors likely originated in the Indo-Pacific. It lived in Fossil Lake, a body of water that existed in a subtropical mountainous region for only about 2 million years.
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Asterotrygon
Asterotrygon is an extinct genus of stingray from the Eocene Green River Formation in Wyoming. Several complete skeletons representing juveniles, adults, males and females have been uncovered from the late early Eocene Fossil Butte Member of the formation. The type and only species, A. maloneyi, was named in 2004 on the basis of these fossils. Another stingray, Heliobatis, is also known from the formation. Asterotrygon is a primitive stingray closely related to the living family Urolophidae whose ancestors likely originated in the Indo-Pacific. It lived in Fossil Lake, a body of water that existed in a subtropical mountainous region for only about 2 million years.
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Asterotrygon is an extinct gen ...... or only about 2 million years.
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Asterotrygon maloneyi Asterotr ...... ron 50 Ma (millions d'années).
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order (taxonomy)
phylum
Wikipage page ID
32,326,094
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1,014,192,250
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classis
fossil range
Early Eocene,
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genus
Asterotrygon
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image caption
Holotype specimen of Asterotrygon maloneyi .
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phylum
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Animalia
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subclassis
subdivision
* A. maloneyi (Carvalho, Maisey & Grande, 2004 )
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Species
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comment
Asterotrygon is an extinct gen ...... or only about 2 million years.
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Asterotrygon maloneyi Asterotr ...... ur la base de ces découvertes.
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label
Asterotrygon
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Asterotrygon
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