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A Borophagine canid (Carnivora: Canidae: Borophaginae) from the middle Miocene Chesapeake Group of eastern North America

Published online by Cambridge University Press:  09 May 2016

Steven E. Jasinski
Affiliation:
Paleontology and Geology Section, State Museum of Pennsylvania, 300 North Street, Harrisburg, PA 17120, U.S.A. 〈c-sjasinsk@pa.gov〉 Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104, USA Don Sundquist Center of Excellence in Paleontology, Johnson City, TN 37614, USA
Steven C. Wallace
Affiliation:
Don Sundquist Center of Excellence in Paleontology, Johnson City, TN 37614, USA Department of Geosciences, East Tennessee State University, Johnson City, TN 37614, USA 〈wallaces@etsu.edu〉
Corresponding

Abstract

A tooth recovered from the middle Miocene Choptank Formation (Chesapeake Group) of Maryland is identified as a new cynarctin borophagine (Canidae: Borophaginae: Cynarctina), here called Cynarctus wangi n. sp. The tooth, identified as a right upper second molar, represents the first carnivoran material reported from the Choptank Formation and part of a limited record of borophagine canids from eastern North America. As ?Cynarctus marylandica (Berry, 1938), another cynarctin borophagine from the older Calvert Formation, is known only from lower dentition, its generic affinities are uncertain. However, features of this new material are compared to features of ?C. marylandica through occlusal relationships, allowing for referral to a distinct species. Even so, the Choptank Formation material still offers two possible scenarios regarding its identification. In one, its geographic and stratigraphic provenance could imply that it belongs to ?C. marylandica. If this were correct, then the generic placement of ?C. marylandica would be correct and the taxon would be more derived than some other Cynarctus species in regard to hypocarnivory, and less derived than others. The second possibility, and the one believed to be most probable, is that a distinct cynarctin borophagine is present in the Chesapeake Group in strata younger than the type specimen of ?C. marylandica. This new borophagine canid expands the sparse fossil record of this group in northeastern North America and furthers our knowledge of the fossil record of terrestrial taxa in this region.

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Copyright © 2016, The Paleontological Society 

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References

Barbour, E.H., and Cook, H. J., 1914, Two new fossil dogs of the genus Cynarctus from Nebraska: Nebraska Geological Survey, v. 4, p. 225227.Google Scholar
Berry, C.T., 1938, A Miocene dog from Maryland: Proceedings of the United States National Museum, v. 85, p. 159161.CrossRefGoogle Scholar
Blackwelder, B.W., and Ward, L.W., 1976, Stratigraphy of the Chesapeake Group of Maryland and Virginia Guidebook 7b (Northeast-Southeast Sections Joint Meeting 1976): Arlington, Geological Society of America, 52 p.Google Scholar
Bowdich, T.E., 1821, An Analysis of the Natural Classifications of Mammalia, Paris, J. Smith, 115 p.Google Scholar
Cope, E.D., 1867, An addition to the vertebrate fauna of the Miocene period, with a synopsis of the extinct Cetacea of the United States: Proceedings of the Academy of Natural Sciences of Philadelphia, v. 19, p. 138156.Google Scholar
Dahlberg, A.A., (ed.)., 1971, Dental Morphology and Evolution, Chicago, The University of Chicago Press, 350 p.Google Scholar
Fischer de Waldheim, G., 1817, Adversaria zoologica. Fasciculus primus: Quaedam ad Mammalium systema et genera illustranda: Mémoires de la Société impériale des naturalistes de Moscou, v. 5, p. 357446.Google Scholar
Flower, W.H., 1869, On the value of the characters of the base of the cranium in the classification of the order Carnivora, and on the systematic position of Bassaris and other disputed forms: Proceedings of the Zoological Society of London, v. 37, p. 437.CrossRefGoogle Scholar
Gazin, C.L., and Collins, R.L., 1950, Remains of land mammals from the Miocene of the Chesapeake Bay region: Smithsonian Miscellaneous Collections, v. 116, p. 121.Google Scholar
Harlan, R., 1842, Notice of two fossil mammals from Brunswick Canal, Georgia; with observations on some of the fossil quadrupeds of the United States: American Journal of Science, v. 42, p. 141144.Google Scholar
Hayden, F.V., 1873, Report of the United States Geological Survey of the Territories, Washington, DC, US Government Printing Office, p. 259260.Google Scholar
Hershkovitz, P., 1971, Basic crown patterns and cusp homologies of mammalian teeth, in Dahlberg, A.A., ed., Dental Morphology and Evolution, Chicago, Illinois, The University of Chicago Press, p. 95150.Google Scholar
Kretzoi, M., 1943, Kochitis centenii n. g. n. sp., ein altertümlicher Creodonte aus dem Oberoligozän Siebenbürgens: Földtany Közlöny, v. 73, p. 1017. 190–195.Google Scholar
Linnaeus, C., 1758, Systema Naturae, 10th ed., v. 1: Stockholm, Laurentii Sylvii, 824 p.Google Scholar
Matthew, W.D., 1902, New Canidae from the Miocene of Colorado: Bulletin of the American Museum of Natural History, v. 16, p. 281290.Google Scholar
Matthew, W.D., 1924, Third contribution to the Snake Creek fauna: Bulletin of the American Museum of Natural History, v. 50, p. 59210.Google Scholar
Matthew, W.D., 1930, The phylogeny of dogs: Journal of Mammalogy, v. 11, p. 117138.CrossRefGoogle Scholar
McGrew, P.O., 1937, The genus Cynarctus: Journal of Paleontology, v. 11, p. 444449.Google Scholar
McGrew, P.O., 1938, Dental morphology of the Procyonidae with a description of Cynarctoides, gen. nov: Geological Series of Field Museum of Natural History, v. 6, p. 323339.Google Scholar
McKenna, M.C., and Bell, S.K., 1997, Classification of Mammals: Above the Species Level, New York, Columbia University Press, 631 p.Google Scholar
Merriam, J.C., 1911, Tertiary mammal beds of Virgin Valley and Thousand Creek in northwestern Nevada: University of California Publications, Bulletin of the Department of Geology, Berkeley, v. 6, p. 199306.Google Scholar
Petuch, E.J., and Drolshagen, M., 2010, Molluscan Paleontology of the Chesapeake Miocene, Boca Raton, CRC Press, 180 p.Google Scholar
Shattuck, G.B., 1904, Geologic and paleontological relations, with a review of earlier investigations, in Clark, W.B., Shattuck, G.B., and Dan, W.H., eds., The Miocene Deposits of Maryland, Baltimore, Maryland Geological Survey, p. 3394.Google Scholar
Simpson, G.G., 1932, Miocene land mammals from Florida: Bulletin of the Florida State Geological Survey, v. 10, p. 141.Google Scholar
Simpson, G.G., 1945, The principles of classification and a classification of mammals: Bulletin of the American Museum of Natural History, v. 8, p. 1350.Google Scholar
Tedford, R.H., and Hunter, M.E., 1984, Miocene marine-nonmarine correlations, Atlantic and Gulf Coastal Plains, North America: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 47, p. 129151.CrossRefGoogle Scholar
Vogt, P.R., and Eshelman, R.E., 1987, Maryland’s Cliffs of Calvert: A fossiliferous record of mid-Miocene inner shelf and coastal environments, in Roy, D.C., ed., Geological Society of America Centennial Field Guide No. 5, Northeastern Section, Boulder, Colorado, Geological Society of America, p. 914.CrossRefGoogle Scholar
Wang, X., Tedford, R.H., and Taylor, B.E., 1999, Phylogenetic systematics of the Borophaginae (Carnivora, Canidae): Bulletin of the American Museum of Natural History, v. 243, p. 1391.Google Scholar
Weems, R.E., and George, R.E., 2013, Amphibians and nonmarine turtles from the Miocene Calvert Formation of Delaware, Maryland, and Virginia (USA): Journal of Paleontology, v. 87, p. 570588.CrossRefGoogle Scholar
Wright, D.B., and Eshelman, R.E., 1987, Miocene Tayassuidae (Mammalia) from the Chesapeake Group of the mid-Atlantic coast and their bearing on marine-nonmarine correlation: Journal of Paleontology, v. 61, p. 604618.CrossRefGoogle Scholar

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A Borophagine canid (Carnivora: Canidae: Borophaginae) from the middle Miocene Chesapeake Group of eastern North America
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