甘肃龙担后枝角鹿(Metacervocerus longdanensis) (鹿科，哺乳纲)头骨新材料及中国后枝角鹿属厘定
收稿日期: 2025-08-22
网络出版日期: 2025-11-24
基金资助
国家重点研发计划项目(2023YFF0804501);国家自然科学基金(42472004);国家自然科学基金(42430207);国家自然科学基金(42402025)
A new cranium of Metacervocerus longdanensis (Cervidae, Mammalia) and the genus Metacervocerus in China
Received date: 2025-08-22
Online published: 2025-11-24
报道了产自甘肃龙担早更新世(约2.60-2.1 Ma)的一件鹿科头骨标本。其保存的角形态特征与龙担日本鹿(Nipponicervus longdanensis)相符。分类修订确认龙担日本鹿具有 “适应型” 的鹿角(远端分枝中前枝小于后枝且延伸方向与主枝相同), 与 “非适应型” 的日本鹿属型种前日本鹿(Nipponicervus praenipponicus)不同，而与后枝角鹿(Metacervocerus Dietrich, 1938)属相同，故将其重新命名为龙担后枝角鹿(Metacervocerus longdanensis)。该头骨具有后倾的角柄，显示其与泥河湾盆地的秀丽后枝角鹿(M. elegans)及欧洲的莱茵后枝角鹿(M. rhenanus)存在系统发育亲缘关系；而缩短的脑颅、前端逐渐收缩的基枕骨及较复杂的P4原尖等衍征则表明其属于该属内的进步类群。属内各种的特征对比显示Metacervocerus可能为并系群：山西后枝角鹿(Metacervocerus? shansius)和旁遮普后枝角鹿(Metacervocerus? punjabiensis)保留一些祖征状态(如较长的脑颅、简单的P4形态), 但具有显著直立的角柄和琴形的角冠主枝，暗示其与M. longdanensis存在演化分歧。已发表的同位素数据(δ13C = -10.9‰, δ18O = -7.5‰)表明M. longdanensis栖息于半开放环境，具有以食叶到混合食性的生态类型。解决了欧亚鹿亚科长期存在的分类学问题，同时阐明了东亚晚上新世-早更新世时期鹿科演化的生物地理学意义。
关键词： 甘肃龙担; 更新世; 鹿科; 后枝角鹿(Metacervocerus); 日本鹿(Nipponicervus); 食性生态
王世骐 , 马姣 , 付娇 , 白炜鹏 . 甘肃龙担后枝角鹿(Metacervocerus longdanensis) (鹿科，哺乳纲)头骨新材料及中国后枝角鹿属厘定[J]. 古脊椎动物学报, 2026 , 64(1) : 59 -73 . DOI: 10.19615/j.cnki.2096-9899.251118
This study documents a skull of the large cervid Nipponicervus longdanensis from the Early Pleistocene (~2.6-2.1 Ma) of Longdan, Gansu, China. Morphological comparisons indicate that N. longdanensis exhibits the type of “adaptive” distal fork (anterior tine smaller and oriented along the beam) that differs from the type species Nipponicervus praenipponicus, while it is aligned with Metacervocerus Dietrich, 1938, necessitating reclassification as Metacervocerus longdanensis. The cranium exhibits posteriorly inclined pedicles demonstrating phylogenetic affinity with M. elegans (Nihewan Basin) and M. rhenanus (Europe), while derived features including a shortened neurocranium, rostrally tapered basioccipital, and duplicated P4 protocone distinguish it as an advanced lineage within the genus. Character assessments reveal that Metacervocerus is potentially paraphyletic because Metacervocerus? shansius and Metacervocerus? punjabiensis retain plesiomorphic conditions (elongated braincase, simple P4 morphology), while they exhibit pronouncedly erected pedicles and lyrated antler beams, suggesting a divergent lineage from Metacervocerus longdanensis. Previously published isotopic data (δ13C = −10.9‰ ± 0.9‰, δ18O = −7.5‰ ± 0.9‰, n = 4) indicate a semi-open habitat and a browsing-to-mixed feeding ecology of M. longdanensis. This revision resolves persistent taxonomic uncertainties in Eurasian Cervinae while elucidating East Asia’s biogeographic significance in driving cervid morphological radiation during the Plio-Pleistocene transition.
Key words： Longdan, Gansu; Pleistocene; Cervidae; Metacervocerus; Nipponicervus; feeding ecology
| [1] | Azzaroli A, 1992. The cervid genus Pseudodama n. g. in the Villafranchian of Tuscany. Palaeontogr Ital, 79: 1-41 |
| [2] | B?rmann E V, R?ssner G E, 2011. Dental nomenclature in Ruminantia: towards a standard terminological framework. Mammal Biol, 76: 762-768 |
| [3] | Brown B, 1926. A new deer form from the Siwaliks. Am Mus Novit, 242: 1-6 |
| [4] | Costeur L, Célia B, Mennecart B, 2018. On some ruminant petrosal bones and their bony labyrinth from Senèze (Villafranchian, France). Rev Paléobiol, 37(2): 443-456 |
| [5] | Croitor R, 2014. Deer from Late Miocene to Pleistocene of Western Palearctic: matching fossil record and molecular phylogeny data. Zitteliana Reihe B: Abh Bayer Staatssam Palaontol Geol, 32: 1-39 |
| [6] | Croitor R, 2018. Plio-Pleistocene Deer of Western Palearctic: Taxonomy, Systematics, Phylogeny. Chi?in?u: Institute of Zoology of the Academy of Sciences of Moldova. 1-140 |
| [7] | Croitor R, Robinson C, 2020. A revision of “Cervus” punjabiensis Brown, 1926 (Cervidae, Mammalia) from the Upper Siwaliks of Chandigarh, India. Quat Int, 550: 147-158 |
| [8] | Dietrich W O, 1938. Zur Kenntnis der oberplioc?nen echten Hirsche. Z Deut Geol Gezel, 90(5): 261-267 |
| [9] | Dong W, Bai W P, Pan Y et al., 2020. New material of Cervidae (Artiodactyla, Mammalia) from Xinyaozi Ravine in Shanxi, North China. Vert PalAsiat, 58(3): 221-248 |
| [10] | Dubois E, 1904. On an equivalent of the Cromer Forest-bed in the Netherlands. Proc K Akad Wet, Sect Sci, 7(3): 214-222 |
| [11] | Groves C P, 2007. Family Cervidae. In: Prothero D R, Foss S E eds. The Evolution of Artiodactyls. Baltimore: The Johns Hopkins University Press. |
| [12] | Heckeberg N S, 2020. The systematics of the Cervidae: a total evidence approach. Peer J, 8: e8114 |
| [13] | Heintz E, 1970. Les Cervidés villafranchiens de France et d’Espagne: Vol. 1 & 2. Mém Mus Natl Hist Nat, Sér C, 22: 1-206 |
| [14] | Kretzoi M, 1941. Pr?okkupierte Namen im S?ugetiersystem. F?ldt K?zl, 71(7-12): 349-350 |
| [15] | Ma J, Sun B Y, Bocherens H et al., 2023. Dietary niche reconstruction of Pliocene and Pleistocene Equidae from the Linxia Basin of northwestern China based on stable isotope analysis. Palaeogeogr Palaeoclimatol Palaeoecol, 614: 111416 |
| [16] | Ma J, Wang S Q, Deng T, 2024. When the woolly rhinoceroses roamed East Asia: a review of isotopic paleoecology of the genus Coelodonta from the Tibetan Plateau to northern Eurasia. Front Ecol Evol, 12: 1377000 |
| [17] | Matsumoto H, 1926. On some new fossil cervicorns from Kazusa and Liukiu. Sci Rep Tohoku Imp Univ Ser 2, 10: 17-25 |
| [18] | Mennecart B, DeMiguel D, Bibi F et al., 2017. Bony labyrinth morphology clarifies the origin and evolution of deer. Sci Rep, 7: 13176 |
| [19] | Otsuka H, 1967. Pleistocene vertebrate fauna from the Kuchinotsu Goup of west Kyushu. Part II: two new species of fossil deer. Mem Fac Sci Kyushu Univ, Ser D, 18(2): 277-312 |
| [20] | Otsuka H, 1977. Late Plestocene Nipponicervus (cervid, mammal) from the Akiyoshi Plateau, west Japan. Trans Proc Palaeont Soc Jpn, 104: 448-458 |
| [21] | Otsuka H, Shikama T, 1977. Studies on fossil deer of the Takao Collection (Pleistocene deer fauna in the Seto Inland Sea, west Japan, Part I). Bull Natl Sci Mus, Ser C, 3(1): 1-38 |
| [22] | Palmer T S, 1939. Bohlinella, a new name for Deperetia Shikama. J Mammal, 20: 110 |
| [23] | Qiu Z X, Deng T, Wang B Y, 2004. Early Pleistocene mammalian fauna from Longdan, Dongxiang, Gansu, China. Palaeontol Sin, New Ser C, 191: 1-198 |
| [24] | Samson P, Radulesco C, Kisgy?rgy Z, 1971. Nouvelles données sur la faune de Mammifères du Villafranchien inferieur de Capeni-Virghis. E&G Quat Sci J, 22: 64-88 |
| [25] | Schaub S, 1923. Neue und wenig bekannte Cavicornier von Senèze. Eclogae Geol Helv, 18: 281-295 |
| [26] | Shikama T, 1936a. Deperetia, a new subgenus of Cervus, with a note on a new species from the Pleistocene of Japan. Proc Imp Acad, 12(8): 251-254 |
| [27] | Shikama T, 1936b. On a new species of fossil deer, Cervus (cfr. Anoglochis) praenipponicus sp. nov., from Japan. J Geol Soc Jpn, 43: 168-176 |
| [28] | Shikama T, 1941. Fossil deer in Japan. Jub Pub C Omm Prof Yabe, 2: 1125-1170 |
| [29] | Sisson S, 1953. The Anatomy of the Domestic Animals. Philadelphia: W. B. Saunders Company. 1-972 |
| [30] | Teilhard de Chardin P, Piveteau J, 1930. Les mammifères fossiles de Nihowan (Chine). Ann Paléontol, 19: 1-154 |
| [31] | Teilhard de Chardin P, Trassaert M, 1937. The Pliocene Camelidae, Giraffidae, and Cervidae of South Eastern Shansi. Palaeontol Sin, Ser C, 13: 1-56 |
| [32] | Wang S Q, 2014. New findings of ungulate teeth from the Early Pleitocene Longdan Fauna, China. In: Dong W ed.. Proceedings of the 14th Annual Meeting of the Chinese Society of Vertebrate Paleontology. Beijing: China Ocean Press. 37-46 |
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