This research focuses on the morphology, ichnotaxonomy, and paleoecological interpretation of pterosaur footprint fossils. Using well-preserved tracksites from Korea, China, and Spain, quantitative approaches such as geometric morphometrics and statistical analyses are applied to refine ichnotaxonomic frameworks and distinguish track morphotypes. Trackway assemblages are further analyzed to infer population structure, including evidence of mixed-age groups and gregarious behavior. By integrating ichnological data with anatomical information from body fossils, this work aims to reconstruct the identity, functional morphology, and ecological adaptations of pterosaur trackmakers.

Jung, J.*, Kim, K.S.*, Xing, L., & Choi, B.-D. New Large Pterosaur Tracks from Korea and their Implications on Terrestrial Behavior. Scientific Reports. 16, 12363.

Jung, J., Jo, H., Kim, M., & Huh, M.* 2025. Ichnotaxonomic and Morphological Differentiation in Pterosaur Tracks Using Geometric Morphometric Analysis: A Case Study on PteraichnusManus Tracks from Cretaceous East Asia. Cretaceous Research, 167, 106033.

Jung, J. & Huh, M.* 2024. New Pterosaur Tracks from the Hwasun Seoyuri Tracksite (Turonian) of South Korea: Implications for their Ecological Niche and Habitat. Palaeogeography, Palaeoclimatology, Palaeoecology, 645, 112218.

Jung, J., Huh, M.*, Unwin, D. M., Smyth, R. S. H., Hwang, K.-G., Kim, H.-J., Choi, B.-D. & Xing, L. 2022. Evidence for a Mixed-age Group in a Pterosaur Footprint Assemblage from the Early Upper Cretaceous of Korea. Scientific Reports, 12, 10707

This research investigates vertebrate body fossils from the Cretaceous deposits of Korea, with an emphasis on taxonomy, phylogeny, and functional morphology. It includes descriptions of a new dinosaur, turtle, and crocodiliform taxa. Advanced methodologies such as histological analysis and Micro-CT are employed to examine growth patterns, locomotion, and ecological niches. These studies contribute to a broader understanding of vertebrate diversity in East Asia and provide important insights into paleobiogeographic connections with other regions.

Jung, J.*, Kim, M., Jo, H., & Clarke, J.A.* 2026. A new dinosaur species from Korea and its implications for early-diverging neornithischian diversity. Fossil Record, 29(1), 87-113.

Kim, M., Jung, J.*, Joyce, G.J., Park, J., Jung, H., Jo, H., & Huh, M. 2025. A new, Early Cretaceous carettochelyid turtle from South Korea provides insights into softshell evolution and aquatic ecology. Swiss Journal of Palaeontology, 144(1), 75.

This research explores dinosaur egg fossils to reconstruct reproductive biology and paleoecology. It includes the description of the first Mesozoic bird eggs from Korea and the identification of mid-Cretaceous theropod-dominated nesting sites. Morphological and microstructural analyses of eggshells are used to establish an ootaxonomic framework and infer nesting environment. In addition, nest structures and spatial arrangements are examined to interpret reproductive strategies and potential social behaviors. This work provides a comprehensive perspective on the evolution of the reproductive system in Mesozoic terrestrial ecosystems.

Jo, H., Jung, J.*, Kim, M., Huh, M., Clarke, J. A.* 2026. Description of the first Mesozoic bird eggs from Korea and a new mid-Cretaceous theropod-dominant egg locality. Palaeogeography, Palaeoclimatology, Palaeoecology, 689, 113653

Jo, H., Jung, J., Kim, M., Kim, B.S., Woo, Y., Ju, S.Y. & Huh, M.* 2023. Preliminary Study on the Dinosaur Egg Nests from Jaen Island, Sinan (Shinan)-gun, Jeollanam-do of South Korea.Journal of the Geological Society of Korea, 56, 441-451 (in Korean with English abstract)

This research examines the evolutionary history and paleoecological adaptation of crocodylomorpha through an integrative approach that combines anatomical and histological data. Fossil materials from both Korea and North America are analyzed to investigate variation in skeletal morphology and bone compactness, providing insights into locomotion, physiology, and ecological niches. By linking these datasets, the study explores how environmental factors influenced adaptive strategies across different crocodylomorph diversification patterns and paleobiogeographic distribution, contributing to a broader understanding of crocodylomorpha evolution.

This research integrates avian ichnofossils with body fossils, soft-tissue preservation, neoichnological data, and extant bird anatomy to investigate the evolution of soft tissues, ecological adaptations, and behavior in Mesozoic birds. Using diverse research methods, such as geometric morphometrics, photogrammetry, and Micro-CT, the study compares fossil footprints with extant avian anatomical and behavioral datasets to infer trackmakers and their ecological roles. Particular emphasis is placed on soft-tissue traces, including interdigital membranes, and feeding-related trace fossils to reconstruct locomotor strategies and behavioral evolution within a phylogenetically informed framework.