Dicerorhinus (Greek: "two" (dio), "horn" (keratos), "nose" (rhinos)[1]) is a genus of the family Rhinocerotidae, consisting of a single extant species, the two-horned Sumatran rhinoceros (D. sumatrensis), and several extinct species. The genus likely originated in the Mid to Late Pliocene of Northern Indochina and South China.[2] Many species previously placed in this genus probably belong elsewhere.[3]
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Species provisionally considered valid include:
- †Dicerorhinus fusuiensis[4][5] originally described as Rhinoceros fusuiensis[6] Early Pleistocene, South China.
- †Dicerorhinus gwebinensis Zin-Maung-Maung-Thein et al., 2008 Known from a skull of Pliocene-Early Pleistocene age found in Myanmar.[7] Some authors have considered the skull not distinguishable from that of D. sumatrensis.[8]
Historically, Dicerorhinus was a wastebasket taxon. Revisions by several authors over the years have removed many species:
Transferred to Stephanorhinus[3]
- Dicerorhinus merckii
- Dicerorhinus hemitoechus
- Dicerorhinus etruscus
- Dicerorhinus yunchuchenensis
- Dicerorhinus jeanvireti
- Dicerorhinus choukoutienensis (synonym of Merck's rhinoceros)
- Dicerorhinus orientalis (synonym of Merck's rhinoceros)
- Dicerorhinus nipponicus[9]
Transferred to Dihoplus[3]
- Dicerorhinus megarhinus
- Dicerorhinus schleiermacheri
- Dicerorhinus ringstroemi
Transferred to Caementodon
- Dicerorhinus caucasicus[10]
Transferred to Lartetotherium
- Dicerorhinus sansaniensis
- Dicerorhinus cixianensis Chen and Wu, 1976[11]
Transferred to Rusingaceros
Placement of the Sumatran rhinoceros among recent and subfossil rhinoceros species based on nuclear genomes (Liu, 2021)[12]
Bayesian morphological phylogeny (Pandolfi, 2023) Note: This excludes living African rhinoceros species.[13]
Mays, Herman L.; Hung, Chih-Ming; Shaner, Pei-Jen; Denvir, James; Justice, Megan; Yang, Shang-Fang; Roth, Terri L.; Oehler, David A.; Fan, Jun; Rekulapally, Swanthana; Primerano, Donald A. (January 2018). "Genomic Analysis of Demographic History and Ecological Niche Modeling in the Endangered Sumatran Rhinoceros Dicerorhinus sumatrensis". Current Biology. 28 (1): 70–76.e4. doi:10.1016/j.cub.2017.11.021. PMC 5894340. PMID 29249659.
Antoine, P.-O.; Reyes, M. C.; Amano, N.; Bautista, A. P.; Chang, C.-H.; Claude, J.; De Vos, J.; Ingicco, T. (2021). "A new rhinoceros clade from the Pleistocene of Asia sheds light on mammal dispersals to the Philippines". Zoological Journal of the Linnean Society. 194 (2): 416–430. doi:10.1093/zoolinnean/zlab009.
Handa, N.; Kohno, N.; Kudo, Y. (2019). "Reappraisal of a middle Pleistocene rhinocerotid (Mammalia, Perissodactyla) from the Matsugae Cave, Fukuoka Prefecture, southwestern Japan". Historical Biology. 33 (4): 218–229. doi:10.1080/08912963.2019.1604699. S2CID 145930245.
Deng, T.; Li, S., 2023. Restudy of Rhinocerotini fossils from the Miocene Jiulongkou fauna of China. Vertebrata PalAsiatica 61: 198-211 - DOI: 10.19615/j.cnki.2096-9899.230630
Liu, Shanlin; Westbury, Michael V.; Dussex, Nicolas; Mitchell, Kieren J.; Sinding, Mikkel-Holger S.; Heintzman, Peter D.; Duchêne, David A.; Kapp, Joshua D.; von Seth, Johanna; Heiniger, Holly; Sánchez-Barreiro, Fátima (August 2021). "Ancient and modern genomes unravel the evolutionary history of the rhinoceros family". Cell. 184 (19): 4874–4885.e16. doi:10.1016/j.cell.2021.07.032. hdl:10230/48693. ISSN 0092-8674. PMID 34433011. S2CID 237273079.