Ankylosaurian tracks from Cretaceous of South Korea
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Ben Creisler
Sep 17, 2025, 5:24:45 PM (11 days ago) Sep 17
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Ben Creisler
Highlights
The first discovery of the ankylosaurian in the form of footprints from the Late Cretaceous of Korea.
The trackmaker was interpreted as a (sub-)adult ankylosaurid dinosaur.
One of the very few trackways attributed to Ankylosauridae.
The trackway was assigned to cf. Ruopodosaurus.
The differential depth pattern of pes tracks might result from the differential distribution of plantar pressure during locomotion.
Abstract
A quadrupedal trackway (GS-BHG 2) reported from the Bonghwa-gol tracksite of the Upper Cretaceous Jindong Formation (Cenomanian) shows morphological differences from other dinosaur ichnotaxa from South Korea and other Asian countries. The trackway GS-BHG 2 is characterized by an elongated pes with three short, blunt, and straight digits and oval- to kidney-shaped manus without discernible digit traces showing low heteropody and wide trackway gauge. Based on its morphological characteristics and the temporal distribution of dinosaur fauna during the ‘mid’-Cretaceous, the trackmaker of GS-BHG 2 is tentatively assigned as an ankylosaurid dinosaur, and we refer this trackway as cf. Ruopodosaurus. Pes tracks of GS-BHG 2 show differential depth in their medial and lateral parts, implying that the pressure was focused on the medial part of the pedes during locomotion.
A new paper:
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Han Sang Yoon, Hyun Wook Kim, Jin-Young Park, Seung-Ho Jung, Dal-Yong Kong & Yuong-Nam Lee (2025)
First reports of a probable ankylosaurian (Thyreophora) trackway from the Jindong Formation (Cenomanian) of Goseong County, South Korea
Cretaceous Research 106240
doi: https://doi.org/10.1016/j.cretres.2025.106240
https://www.sciencedirect.com/science/article/abs/pii/S0195667125001636
Han Sang Yoon, Hyun Wook Kim, Jin-Young Park, Seung-Ho Jung, Dal-Yong Kong & Yuong-Nam Lee (2025)
First reports of a probable ankylosaurian (Thyreophora) trackway from the Jindong Formation (Cenomanian) of Goseong County, South Korea
Cretaceous Research 106240
doi: https://doi.org/10.1016/j.cretres.2025.106240
https://www.sciencedirect.com/science/article/abs/pii/S0195667125001636
Highlights
The first discovery of the ankylosaurian in the form of footprints from the Late Cretaceous of Korea.
The trackmaker was interpreted as a (sub-)adult ankylosaurid dinosaur.
One of the very few trackways attributed to Ankylosauridae.
The trackway was assigned to cf. Ruopodosaurus.
The differential depth pattern of pes tracks might result from the differential distribution of plantar pressure during locomotion.
Abstract
A quadrupedal trackway (GS-BHG 2) reported from the Bonghwa-gol tracksite of the Upper Cretaceous Jindong Formation (Cenomanian) shows morphological differences from other dinosaur ichnotaxa from South Korea and other Asian countries. The trackway GS-BHG 2 is characterized by an elongated pes with three short, blunt, and straight digits and oval- to kidney-shaped manus without discernible digit traces showing low heteropody and wide trackway gauge. Based on its morphological characteristics and the temporal distribution of dinosaur fauna during the ‘mid’-Cretaceous, the trackmaker of GS-BHG 2 is tentatively assigned as an ankylosaurid dinosaur, and we refer this trackway as cf. Ruopodosaurus. Pes tracks of GS-BHG 2 show differential depth in their medial and lateral parts, implying that the pressure was focused on the medial part of the pedes during locomotion.
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