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Geoemydidae

About: Geoemydidae is a research topic. Over the lifetime, 82 publications have been published within this topic receiving 1031 citations.


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Journal ArticleDOI
TL;DR: The morphological variability in the shells of Echmatemys challenges its recovery as a monophyletic group under parsimony analysis and poses new problems in the interpretation of the origin and the palaeobiogeographical evolution of this clade in North America.
Abstract: This contribution presents a complete revision of the extinct geoemydid Echmatemys from North America, based on new information and a re-evaluation of previously published specimens. Echmatemys is ...

4 citations

30 Jun 2012
TL;DR: The distribution of Korean freshwater turtles was determined based on a field study and literature study, and the taxonomic position of unidentified native turtles was considered, showing that the Korean native species is P. maackii, and P. sinensis was imported from abroad and has been in the natural habitats of Korea since 1970s.
Abstract: Korean freshwater turtles are divided into native turtles, Chinemys reevesii in Geoemydidae, Pelodiscus sinensis in Trionychidae, and imported turtles, Trachemys scripta elegans, T. s. scripta, Pseudemys rubriventris and Ocadia sinensis. In this study, we determined the distribution of Korean freshwater turtles based on a field study and literature study, and considered the taxonomic position of unidentified native turtles. The study was carried out between May 2010 and November 2011 during the day time, and the capturing tool used to collect turtles consisted of net and metal frame. C. reevesii and P. sinensis were found in 16 and 11 places, respectively. C. reevesii, which inhabits the Korean peninsula, is a taxonomically controversial species, but it is presumed that the turtle belongs to Mauremys. Moreover recent taxonomic studies of the soft-shell turtle have shown that the Korean native species is P. maackii, and P. sinensis was imported from abroad and has been in the natural habitats of Korea since 1970s. The exterior shape and skeletal form of P. maackii and P. sinensis are nearly similar. However, the skin color and yellow spots on the shell could be used to distinguish the two species.

4 citations

Journal ArticleDOI
31 Aug 2019
TL;DR: Koo et al. as discussed by the authors examined the biotic and abiotic factors that directly and indirectly threaten the survival of Mauremys reevesii within the habitat of the reservoir.
Abstract: In this study, we investigated the habitat characteristics of a reservoir in Gyeongju City, Gyeongbuk, in which a large group of Mauremys reevesii (endangered species Class II and natural monument No. 453 in Korea) was discovered. We examined the biotic and abiotic factors that directly and indirectly threaten the survival of M. reevesii within the habitat. The reservoir where M. reevesii was discovered was built for agriculture and surrounded by submerged trees, dam, forests, reeds, and farmland (paddy field). All of the M. reevesii were found only in the submerged trees on the north side of the reservoir. We found 28 M. reevesii (8 juveniles) and 한국환경생태학회지 33(4): 402-407, 2019 Korean J. Environ. Ecol. 33(4): 402-407, August 2019 ISSN 1229-3857(Print) ISSN 2288-131X(Online) https://doi.org/10.13047/KJEE.2019.33.4.402 한국 내 멸종위기종 남생이 Mauremys reevesii Gray 1831 (Reptilia; Testudines; Geoemydidae)의 집단 서식 및 서식지 현황 보고 구교성⋅장환진⋅김대인⋅김수환⋅백혜준⋅성하철 Report on the Large Population and Habitat Status of Endangered Species, Mauremys reevesii Gray 1831 (Reptilia; Testudines; Geoemydidae) in South Korea Kyo Soung Koo2, Hoan-Jin Jang3, Dae-In Kim4, Su Hwan Kim3, Hae-Jun Baek3, Ha-Cheol Sung5*

3 citations

Book ChapterDOI
01 Jan 2014
TL;DR: With the exception of Trionychidae, the remaining cryptodiran clades are still present in the South American chelonian fauna.
Abstract: Aquatic cryptodiran turtles of the clades Emydidae, Chelydridae, Geoemydidae, Kinosternidae, and Trionychidae are the most recent Mesoamerican immigrants to South America, arriving in various waves from the Miocene 12 million years ago (prior to the emergence of the Panamanian Isthmus) to the Plio-Pleistocene and Holocene (after the establishment of this isthmus). With the exception of Trionychidae, the remaining cryptodiran clades are still present in the South American chelonian fauna.

3 citations

Journal ArticleDOI
TL;DR: A new turtle from the early Eocene of Wutu, Shandong Province, China with a full row of well-developed inframarginal scutes is described, demonstrating that stem testudinoids crossed the Palaeocene–Eocene boundary in their original range.
Abstract: We describe here a new turtle from the early Eocene of Wutu, Shandong Province, China. This turtle with a full row of well-developed inframarginal scutes is assigned to the basalmost testudinoids while stem testudinoids were believed to disappear by the Palaeocene–Eocene boundary. This account shows that stem testudinoids crossed this boundary in their original range. The first comprehensive phylogenetic analysis of stem and modern testudinoids performed here demonstrates that the stem testudinoids, previously placed in the family ‘Lindholmemydidae’, do not form a monophyletic group, and the two major clades of testudinoids (Emydidae and Geoemydidae+Testudinidae) split one from another well before the Palaeocene/Eocene boundary, prior to the Late Cretaceous.

3 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20215
20203
201910
20182
20175
20167