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Thomas Ziegler    
Cologne Zoo
Cologne, Germany
13 articles by this author
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A new species of Cyrtodactylus (Squamata, ...
Research Article
A new species of Cyrtodactylus (Squamata, Gekkonidae) from Hon Tre Island in Khanh Hoa Province, Vietnam
    Quyen Hanh Do, Hanh Thi Ngo,     Truong Quang Nguyen,     Minh Duc Le,     Thomas Ziegler,     Dang Trong Do,     Cuong The Pham
10.3897/zookeys.1253.149459
 24-09-2025
 Unique: 597 | Total: 703
 Reprint: € 9,00
 195-218
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Taxonomic revision of the Quasipaa verrucospinosa ...
Research Article
Taxonomic revision of the Quasipaa verrucospinosa complex (Amphibia, Dicroglossidae) in Vietnam, with descriptions of two new species
    Cuong The Pham,     Chung Van Hoang,     Tien Quang Phan,     Anh Van Pham,     An Vinh Ong,     Vien Hong Thi Nguyen,     Thomas Ziegler,     Truong Quang Nguyen
10.3897/zookeys.1240.147337
 05-06-2025
 Unique: 1103 | Total: 1579
 Reprint: € 14,00
 139-175
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A new skink of the genus Scincella Mittleman, ...
Research Article
A new skink of the genus Scincella Mittleman, 1950 (Squamata, Scincidae) from Son La Province, northwestern Vietnam
    Anh Van Pham,     Thomas Ziegler,     Cuong The Pham,     Thao Ngoc Hoang,     Hanh Thi Ngo,     Minh Duc Le
10.3897/zookeys.1226.139655
 10-02-2025
 Unique: 1209 | Total: 1511
 Reprint: € 8,00
 319-337
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Zhangixalus thaoae sp. nov., a new green ...
Research Article
Zhangixalus thaoae sp. nov., a new green treefrog species from Vietnam (Anura, Rhacophoridae)
    Tao Thien Nguyen,     Huy Hoang Nguyen,     Hoa Thi Ninh,     Linh Tu Hoang Le,     Hai Tuan Bui,     Nikolai Orlov,     Chung Van Hoang,     Thomas Ziegler
10.3897/zookeys.1197.104851
 08-04-2024
 Unique: 1897 | Total: 2592
 Reprint: € 9,00
 93-113
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A new species of the Cyrtodactylus chauquangensis ...
Research Article
A new species of the Cyrtodactylus chauquangensis species group (Squamata, Gekkonidae) from Lao Cai Province, Vietnam
    Tung Thanh Tran,     Quyen Hanh Do,     Cuong The Pham,     Tien Quang Phan,     Hanh Thi Ngo,     Minh Duc Le,     Thomas Ziegler,     Truong Quang Nguyen
10.3897/zookeys.1192.117135
 19-02-2024
 Unique: 1917 | Total: 2488
 Reprint: € 8,00
 83-102
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Southbound – the southernmost record of ...
Research Article
Southbound – the southernmost record of Tylototriton (Amphibia, Caudata, Salamandridae) from the Central Highlands of Vietnam represents a new species
    Trung My Phung,     Cuong The Pham,     Truong Quang Nguyen, Hoa Thi Ninh,     Huy Quoc Nguyen,     Marta Bernardes, Son Thanh Le,     Thomas Ziegler,     Tao Thien Nguyen
10.3897/zookeys.1168.96091
 03-07-2023
 Unique: 4763 | Total: 6632
 Reprint: € 11,00
 193-218
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A new species of Hemiphyllodactylus ( ...
Research Article
A new species of Hemiphyllodactylus (Squamata, Gekkonidae) from Ha Giang Province, Vietnam
    Vinh Quang Luu,     Thuong Huyen Nguyen,     Quyen Hanh Do,     Cuong The Pham, Tuoi Thi Hoang,     Truong Quang Nguyen,     Minh Duc Le,     Thomas Ziegler,     Jesse L. Grismer,     L. Lee Grismer
10.3897/zookeys.1167.103713
 22-06-2023
 Unique: 5808 | Total: 6826
 Reprint: € 12,00
 353-382
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A new species of Gracixalus (Anura, R ...
Research Article
A new species of Gracixalus (Anura, Rhacophoridae) from northwestern Vietnam
    Tung Thanh Tran,     Anh Van Pham,     Minh Duc Le, Nam Hai Nguyen,     Thomas Ziegler,     Cuong The Pham
10.3897/zookeys.1153.93566
 10-03-2023
 Unique: 1916 | Total: 2524
 Reprint: € 9,00
 15-35
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Hidden in the jungle of Vietnam: a n ...
Research Article
Hidden in the jungle of Vietnam: a new species of Quasipaa (Amphibia, Anura, Dicroglossidae) from Ngoc Linh Mountain
    Cuong The Pham,     Chung Van Hoang,     Tien Quang Phan,     Truong Quang Nguyen,     Thomas Ziegler
10.3897/zookeys.1124.89282
 10-10-2022
 Unique: 2438 | Total: 3181
 Reprint: € 8,00
 23-42
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Two new cryptic species of Microhyla ...
Research Article
Two new cryptic species of Microhyla Tschudi, 1838 (Amphibia, Anura, Microhylidae) related to the M. heymonsi group from central Vietnam
    Chung Van Hoang,     Tao Thien Nguyen, Hoa Thi Ninh, Anh Mai Luong, Cuong The Pham,     Truong Quang Nguyen, Nikolai L. Orlov, Youhua Chen,     Bin Wang,     Thomas Ziegler,     Jianping Jiang
10.3897/zookeys.1036.56919
 05-05-2021
 Unique: 3343 | Total: 5100
 Reprint: € 11,00
 47-74
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Integrative taxonomy reveals three new ...
Research Article
Integrative taxonomy reveals three new taxa within the Tylototriton asperrimus complex (Caudata, Salamandridae) from Vietnam
Marta Bernardes,     Minh Duc Le,     Truong Quang Nguyen, Cuong The Pham, Anh Van Pham,     Tao Thien Nguyen, Dennis Rödder, Michael Bonkowski,     Thomas Ziegler
10.3897/zookeys.935.37138
 21-05-2020
 Unique: 5319 | Total: 8156
 Reprint: € 15,00
 121-164
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Re-examination of the Chinese record ...
Research Article
Re-examination of the Chinese record of Opisthotropis maculosa (Squamata, Natricidae), resulting in the first national record of O. haihaensis and description of a new species
    Jian Wang, Zhi-Tong Lyu, Zhao-Chi Zeng, Chao-Yu Lin,     Jian-Huan Yang,     Truong Quang Nguyen,     Minh D. Le,     Thomas Ziegler, Ying-Yong Wang
10.3897/zookeys.913.48622
 19-02-2020
 Unique: 3773 | Total: 5320
 Reprint: € 8,00
 141-159
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