A possible new amphicyonid from the Miocene of the Linxia Basin

doi:10.19615/j.cnki.2096-9899.240320

Vertebrata Palasiatica ›› 2024, Vol. 62 ›› Issue (2): 156-164.DOI: 10.19615/j.cnki.2096-9899.240320

A possible new amphicyonid from the Miocene of the Linxia Basin

JIANGZUO Qi-Gao¹, GAO Yuan², Alberto VALENCIANO³^,⁴, LU Dan¹^,⁵^,⁶, WANG Shi-Qi¹

1 Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Beijing 10044, China jiangzuo@ivpp.ac.cn
2 National Natural History Museum of China Beijing 100010, China
3 Departamento de Estratigrafía, Geodinámicay Paleontología, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid Madrid 28040, Spain
4 Research and Exhibitions, Iziko Museums of South Africa Cape Town 8001, South Africa
5 University of Chinese Academy of Sciences Beijing 100049, China
6 Centre de Recherche en Paléontologie - Paris, UMR 7207, Sorbonne Université, Muséum National d’Histoire Naturelle Paris 75005, France

Received:2023-12-25 Online:2024-04-20 Published:2024-05-08

临夏盆地中新世一可能的新犬熊

江左其杲¹, 高源², 阿尔伯托·瓦伦西亚诺³^,⁴, 鲁丹¹^,⁵^,⁶, 王世骐¹

1 中国科学院古脊椎动物与古人类研究所，中国科学院脊椎动物演化与人类起源重点实验室北京 100044
2 中国国家自然博物馆北京 100010
3 西班牙马德里康普顿斯大学，地球科学学院，地层学、地质力学和古生物系马德里 28040
4 南非自然历史博物馆，研究和展览中心开普敦 8001
5 中国科学院大学北京 100049
6 法国国家自然历史博物馆，索邦大学，古生物研究中心UMR 7207 巴黎 75005

基金资助:
国家自然科学基金青年科学基金(42102001);国家重点研发计划(2023YFF0804501)

Abstract

Abstract:

Here we report a new form of amphicyonid from an uncertain locality in the Linxia Basin. The derived dental traits imply an affinity to Magericyon, previously known from Europe and possibly southern Asia. The specimen suggests a higher diversity of amphicyonids in eastern Asia than previously thought, and more discovery with stratigraphic information will be needed to elucidate the evolution of Amphicyonidae in eastern Asia.

Key words: Linxia Basin, China, Amphicyonidae, Magericyon

摘要：

报道了甘肃临夏盆地具体产地未知的一件犬熊下颌。该下颌展现出进步的牙齿特征，与过去发现于欧洲以及南亚的马德里犬熊Magericyon近似。这件犬熊化石指示东亚的犬熊多样性比以往认知的更高，但还需要更多具有明确层位信息的犬熊化石来进一步揭示东亚犬熊的演化。

关键词: 甘肃临夏盆地, 犬熊科, 马德里犬熊

CLC Number:

Q915.874

JIANGZUO Qi-Gao, GAO Yuan, Alberto VALENCIANO, LU Dan, WANG Shi-Qi. A possible new amphicyonid from the Miocene of the Linxia Basin. Vertebrata Palasiatica, 2024, 62(2): 156-164.

江左其杲, 高源, 阿尔伯托·瓦伦西亚诺, 鲁丹, 王世骐. 2024, 62(2): 156-164, 临夏盆地中新世一可能的新犬熊. 古脊椎动物学报.

Figures/Tables 3

Fig. 1 Magericyon sp. (IVPP V33030) from an unknown locality, Linxia Basin in lateral, occlusal and medial views

Fig. 2 Comparison of Magericyon sp. and related taxa in lateral view A. Magericyon sp., IVPP V33030, Linxia Basin; B. Magericyon anceps B-3139, Batallones-1; C. Magericyon castellanus, MNCN 3836 (mirrored), Los Valles de Fuentidueña; D. Heizmannocyon steinheimensis, UNSM cast, Steinheim (note that the horizontal corpus is mainly reconstructed); E. Amphicyon major, Sa844, Sansan; F. Lonchocyon qiui, IVPP V28616, Baron Sog Formation, Erlian Basin The dotted line represents the level of canine and m1 of Magericyon sp., IVPP V33030

Fig. 3 Comparison of m1s of several amphicyonids mentioned in this study All teeth in occlusal, lateral and medial views. Hubacyon gutmanni NHMW 19771948/0132 from Mannersdorf; Heizmannocyon steinheimensis, UNSM cast, from Steinheim; Tomocyon grivensis (mirrored) LGR1128 from La Grive; Amphicyon giganteus NHMW2015/0009/0001 from Gracanica; Magericyon anceps B-3139, Batallones-1; Magericyon sp., IVPP V33030. Not to scale

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A possible new amphicyonid from the Miocene of the Linxia Basin

临夏盆地中新世一可能的新犬熊

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