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| subdivision_ranks = Species
| subdivision_ranks = Species
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*''D. allisoni'' <small>Kilmer, 1965</small>
*''D. manigaulti'' <small> Cope, 1883 ([[type species|type]])</small>
*''D. manigaulti'' <small> Cope, 1883 ([[type species|type]])</small>
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*?''D. allisoni'' (Kilmer, 1965)
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'''''Dioplotherium''''' is an extinct genus of [[mammal]] known from Neogene deposits in the southeastern United States.<ref>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</ref>
'''''Dioplotherium''''' is an extinct genus of [[mammal]] known from Neogene deposits in the [[Southeastern United States]].<ref>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</ref>


==Taxonomy==
==Species==
''"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).<ref>F. H. Kilmer. 1965. A Miocene dugongid from Baja California, Mexico. Bulletin of the Southern California Academy of Sciences 65(2):57-74.</ref><ref>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</ref><ref>D. P. Domning. 1996. Bibliography and Index of the Sirenia and Desmostylia. Smithsonian Contributions to Paleobiology 80:1-611</ref> 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.<ref>Velez-Juarbe, J., D. P. Domning, and [[N. D. Pyenson]]. 2012a. Iterative evolution
*''Dioplotherium allisoni'', described as ''Halianassa allisoni'' by Kilmer in 1965 from remains found in the middle Miocene [[Isidro Formation]] of Baja California, Mexico, and known from marine deposits in Baja California and California.<ref>F. H. Kilmer. 1965. A Miocene dugongid from Baja California, Mexico. ''Bulletin of the Southern California Academy of Sciences'' '''65'''(2):57-74.</ref> The species was referred to ''Dioplotherium'' by Domning in 1989.<ref name=jvp1989/>{{Rp|pp=417–418}}<ref>D. P. Domning. 1996. Bibliography and Index of the Sirenia and Desmostylia. ''Smithsonian Contributions to Paleobiology'' '''80''':1-611 {{doi|10.5479/si.00810266.80.1}}</ref>

of sympatric seacow (Dugongidae, Sirenia) assemblages during the past ~26 million years. PLoS ONE 7:e31294.</ref><ref>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.</ref><ref>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}}.</ref><ref>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}}</ref>
*''Dioplotherium manigaulti'', was described by [[Edward Drinker Cope]] in 1883 on the basis of a partial [[premaxilla]] with a tusk found near [[Charleston, South Carolina]]. Nothing more was known of the species until a nearly complete skull was found in the [[Suwannee River]] by Gary S. Morgan in 1985. Additional fossils ascribed to ''D. manigaulti'' have been found in the Charleston Phosphate Beds and [[Ashley River]] phosphate deposits in South Carolina, and in exposures of the [[Hawthorn Group]] in [[Jackson County, Florida]].<ref name=jvp1989>Domning, Daryl P. 1989. Fossil Sirenia of the West Atlantic and Caribbean Region. II. Dioplotherium manigaulti Cope, 1883. ''Journal of Vertebrate Paleontology'' '''9'''(4):415-428. {{JSTOR|4523282}}</ref>{{Rp|pp=415, 417–418}}


==References==
==References==
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{{Sirenian genera}}
{{Sirenian genera}}
{{Taxonbar|from=Q676188}}
{{Taxonbar|from=Q676188}}
[[Category:Dugongidae]]

[[Category:Miocene sirenians]]
[[Category:Miocene sirenians]]
[[Category:Fossil taxa described in 1883]]
[[Category:Fossil taxa described in 1883]]

Latest revision as of 12:44, 21 September 2024

Dioplotherium
Temporal range: Miocene
Dioplotherium manigaulti
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Sirenia
Family: Dugongidae
Subfamily: Dugonginae
Genus: †Dioplotherium
Cope, 1883
Species
  • D. allisoni Kilmer, 1965
  • D. manigaulti Cope, 1883 (type)

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

Species

[edit]
  • Dioplotherium allisoni, described as Halianassa allisoni by Kilmer in 1965 from remains found in the middle Miocene Isidro Formation of Baja California, Mexico, and known from marine deposits in Baja California and California.[2] The species was referred to Dioplotherium by Domning in 1989.[3]: 417–418 [4]

References

[edit]
  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. ^ a b Domning, Daryl P. 1989. Fossil Sirenia of the West Atlantic and Caribbean Region. II. Dioplotherium manigaulti Cope, 1883. Journal of Vertebrate Paleontology 9(4):415-428. JSTOR 4523282
  4. ^ D. P. Domning. 1996. Bibliography and Index of the Sirenia and Desmostylia. Smithsonian Contributions to Paleobiology 80:1-611 doi:10.5479/si.00810266.80.1


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