A new titanopteran Magnatitan jongheoni n. gen. n. sp. from southwestern Korean Peninsula

Titanopterans are spectacular, giant, predatory insects mainly known from the Triassic, but they are known from a few localities in Central Asia (including European Russia) and Australia. The Nampo Group is a nonmarine sequence, located on the southwestern Korean Peninsula, the age of which has rema...

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Veröffentlicht in:Journal of paleontology 2022-09, Vol.96 (5), p.1111-1118
Hauptverfasser: Park, Tae-Yoon S., Kim, Do-Yoon, Nam, Gi-Soo, Lee, Mirinae
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Sprache:eng
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Zusammenfassung:Titanopterans are spectacular, giant, predatory insects mainly known from the Triassic, but they are known from a few localities in Central Asia (including European Russia) and Australia. The Nampo Group is a nonmarine sequence, located on the southwestern Korean Peninsula, the age of which has remained controversial, due to lack of proper age-constraining fossils. Here, we report a new titanopteran Magnatitan jongheoni n. gen. n. sp. from the Amisan Formation, Nampo Group. The division of the radius anterior and radius posterior beyond the distal half of the fossil wing is a characteristic of the family Paratitanidae. This is the first discovery of a titanopteran fossil outside of Central Asia and Australia, suggesting a possible circum-Tethys oceanic distribution. Given the possibly widespread distribution of titanopterans, this group might have played a critical role as giant predatory insects in Triassic terrestrial ecology. Because titanopterans have never been found beyond the Triassic-Jurassic boundary, the occurrence of a titanopteran corroborates the Triassic age of the Nampo Group. UUID: http://zoobank.org/10177029-0044-424f-9816-e3fb057cfe85
ISSN:0022-3360
1937-2337
DOI:10.1017/jpa.2022.30