Dioplotherium

Dioplotherium is an extinct genus of mammal known from Neogene deposits in the southeastern United States.[1]

Dioplotherium
Temporal range: Miocene
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Sirenia
Family:
Dugongidae
Subfamily:
Dugonginae
Genus:
Dioplotherium

Cope, 1883
Species
  • D. manigaulti Cope, 1883 (type)
  • ?D. allisoni (Kilmer, 1965)

Taxonomy

"Halianassa" allisoni, described by Kilmer (1965) from remains found in the middle Miocene Isidro Formation of Baja California, Mexico, and known from marine deposits in Baja California and California, has been referred to Dioplotherium by some authors (e.g. Domning 1989, 1996).[2][3][4] However, recent cladistic studies find the taxon distantly related to the Dioplotherium type species, and specimens from Brazil attributed to allisoni appear to be a distinct species instead.[5][6][7][8]

References
  1. E. D. Cope. 1883. On a new extinct genus of Sirenia, from South Carolina. Proceedings of the Academy of Natural Sciences of Philadelphia 1883:52-54
  2. F. H. Kilmer. 1965. A Miocene dugongid from Baja California, Mexico. Bulletin of the Southern California Academy of Sciences 65(2):57-74.
  3. D. P. Domning. 1989. Fossil Sirenia of the West Atlantic and Caribbean Region. II. Dioplotherium manigaulti Cope, 1883. Journal of Vertebrate Paleontology 9(4):415-428
  4. D. P. Domning. 1996. Bibliography and Index of the Sirenia and Desmostylia. Smithsonian Contributions to Paleobiology 80:1-611
  5. Velez-Juarbe, J., D. P. Domning, and N. D. Pyenson. 2012a. Iterative evolution of sympatric seacow (Dugongidae, Sirenia) assemblages during the past ∼26 million years. PLoS ONE 7:e31294.
  6. Springer, M. S., A. V. Signore, J. L. A. Paijmans, J. Vélez-Juarbe, D. P. Domning, C. E. Bauer, K. He, L. Crerar, P. F. Campos, W. J. Murphy, R. W. Meredith, J. Gatesy, E. Willerslev, R. D. E. MacPhee, M. Hofreiter, and K. L. Campbell. 2015. Interordinal gene capture, the phylogenetic position of Steller’s sea cow based on molecular and morphological data, and the macroevolutionary history of Sirenia. Molecular Phylogenetics and Evolution 91:178–193.
  7. Velez-Juarbe, J., and D. P. Domning. 2015. Fossil Sirenia of the West Atlantic and Caribbean region. XI. Callistosiren boriquensis, gen. et sp. nov. Journal of Vertebrate Paleontology. doi: 10.1080/02724634.2014.885034.
  8. Jorge Velez-Juarbe & Aaron R. Wood (2019): An early Miocene dugongine (Sirenia: Dugongidae) from Panama, Journal of Vertebrate Paleontology, DOI:10.1080/02724634.2018.1511799


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