The first orthopteran fossils from the Lower Cretaceous (Albian) Jinju Formation of Korea: Ethological implications for elcanids

Kim, Doyoon; Lee, Mirinae; Nam, Gi-Soo; Park, Tae-Yoon S.

doi:10.1016/j.cretres.2021.104843

Cited by 11 publications

(6 citation statements)

References 61 publications

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“…If so, the uppermost unit of the Nampo Group, the Seongjuri Formation, remains the only unit with the possibility of stretching into the Lower Jurassic. The youngest detrital zircon data from the Seongjuri Formation shows a range from 197-175 Ma (Lee et al, 2021), supporting this possibility.…”

Section: Discussionmentioning

confidence: 81%

“…Subsequently, Egawa and Lee (2009) considered the 'subbasins' of the Chungnam Basin as piggyback basins formed during the Daebo orogeny. Park et al (2019) and Lee et al (2021) proposed a postcollisional extensional deformation in the Late Triassic for the basin development based on the assumption that an eastward extension of the Sulu collisional belt runs through this area (Oh, 2006;Kwon et al, 2009).…”

Section: Geological Settingmentioning

confidence: 99%

“…In recent paleontological research using WDS analyses on fossiliferous shale, various body structures (e.g., brains in Cambrian stem-arthropod fossils [Park et al, 2018b] and wing venations and a subgenital plate in Cretaceous elcanid orthopteran fossils [Kim et al, 2021]) were highlighted in the carbon elemental maps by different carbon concentrations, indicating that the fossils were preserved as thin carbonaceous film on dark shale. The mineralogy of the new titanopteran fossil from the Amisan Formation in this study, however, seems different from those in the previous studies.…”

Section: Systematic Paleontologymentioning

confidence: 99%

“…Recently, Park and Noh (2015) and Park et al (2018a) discovered that the formation process of the volcanics should be distinguished from the deposition of the Nampo Group and suggested that the Nampo Group was deposited during the Late Triassic to Early Jurassic, and *Corresponding authors. subsequently, the Chungnam Basin further subsided at the Early-Middle Jurassic to accommodate the volcanic deposits (Park et al, 2019;Lee et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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A new titanopteranMagnatitan jongheonin. gen. n. sp. from southwestern Korean Peninsula

et al. 2022

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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

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Section: Discussionmentioning

confidence: 81%

Section: Geological Settingmentioning

confidence: 99%

Section: Systematic Paleontologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new titanopteranMagnatitan jongheonin. gen. n. sp. from southwestern Korean Peninsula

et al. 2022

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“…In recent paleontological researches using WDS analyses on fossiliferous shale, various body structures, such as brains in Cambrian stem-arthropod fossils 57 , and wing venations and a subgenetal plate in Cretaceous elcanid orthopteran fossils 58 , were highlighted in the carbon elemental maps by different carbon concentrations, indicating that the fossils were preserved as thin carbonaceous lm on dark shale. The mineralogy of the new titanopteran fossil from the Amisan Formation in this study, however, seems different from those in the previous studies.…”

Section: Mineralogy Of the Fossilmentioning

confidence: 99%

A New Titanopteran from Southwestern Korean Peninsula: The Triassic Age of the Nampo Group and its Tectonic Implications

Park

Kim

Nam

et al. 2021

Preprint

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Titanopterans are well-known as giant predatory insects in the Triassic, but not only their rare occurrences have been limited to Central Asia and Australia, but also their phylogenetic affinity remains unresolved. The age of the nonmarine sequences of the Nampo Group at the southwestern Korean Peninsula is unclear, and the tectonic affinity of the surrounding area is contentions. Here we report a new titanopteran Magnatitan jongheoni gen. et sp. nov. the Amisan Formation, Nampo Group, which marks the first discovery of the titanopteran fossil from outside Central Asia and Australia, presenting a possible circum-Tethys Ocean distribution, at least, during the Late Triassic. The new fossil shows a clearly divided CuPb, which will help understand the evolution of titanopterans in the future. Moreover, the occurrence of a titanopteran finally confirms the Late Triassic age of the Nampo Group. In China, similar Late Triassic non-marine sequences are widespread in the Cathaysia Block, in which various geological features similar to those in the southwestern Korean Peninsula, such as a Paleozoic magmatism and an eclogite facies with Neoproterozoic protoliths, have been recently documented as in the southeastern Korean Peninsula. Such similarities may suggest a close tectonic affinity between the northeastern Cathaysia Block and the southwestern Korean Peninsula.

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Three new species of Elcanidae (Insecta: Orthoptera) from Myanmar amber and a discussion about phylogeny, ecology and evolutionary origin of Myanmar-amber Elcanidae

Schall,

Kotthoff,

Husemann

2023

PalZ

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The first orthopteran fossils from the Lower Cretaceous (Albian) Jinju Formation of Korea: Ethological implications for elcanids

Cited by 11 publications

References 61 publications

A new titanopteranMagnatitan jongheonin. gen. n. sp. from southwestern Korean Peninsula

A new titanopteranMagnatitan jongheonin. gen. n. sp. from southwestern Korean Peninsula

A New Titanopteran from Southwestern Korean Peninsula: The Triassic Age of the Nampo Group and its Tectonic Implications

Three new species of Elcanidae (Insecta: Orthoptera) from Myanmar amber and a discussion about phylogeny, ecology and evolutionary origin of Myanmar-amber Elcanidae

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