The Mammalian Fauna of the White River Oligocene: Part I. Insectivora and Carnivora

Scott, W. B.; Jepsen, Glenn L.

doi:10.2307/1005507

Cited by 89 publications

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“…The possible existence of sexual dimorphism in Hyaenodon species was suggested by Matthew (1901) and Scott and Jepsen (1936), who argued that H. horridus and H. cruentus are different sexes of the same species. Later, Mellett (1977) also concluded that the differences between these two species are a result of dimorphism based on the frequency distribution of tooth size; hence, he synonymized H. cruentus with H. horridus.…”

Section: B O D Y M a S S E S T I M A T E S F O R H Y A E N O D O N T mentioning

confidence: 98%

“…Intraspeci®c dimorphism has been suggested for two species of North American hyaenodontids, Thinocyon velox (Matthew 1909) and Hyaenodon horridus (Matthew 1901;Scott and Jepsen 1936;Mellett 1977). It is dif®cult to compare the estimated body sizes for hyaenodontid fossils because the values¯uctuate a lot depending on which elements are available for body mass estimation of each hyaenodontid individual; however, the result in this study seems to support the suggestion.…”

Section: B O D Y M a S S E S T I M A T E S F O R H Y A E N O D O N T mentioning

confidence: 99%

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Body Mass Estimates in Extinct Mammals from Limb Bone Dimensions: the Case of North American Hyaenodontids

Egi¹

2001

Palaeontology

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ABSTRACT. The body mass estimation of several limb bone dimensions (shaft cross-sectional properties, articular sizes, and bone lengths) were examined using bivariate linear regression analyses. The sample included taxonomically and behaviourally diverse small to medium-sized Recent carnivorans and carnivorous marsupials. All examined limb bone dimensions indicated low errors (percentage standard error of estimate, 8±13) for the body mass estimations. Among them, humeral and femoral shaft properties correlated best with body weight, while limb bone lengths gave larger errors. Both humeral and femoral head dimensions have relatively large individual variations, and distal humeral articular dimensions seem to be in¯uenced more by phylogenetic differences. The regressions based on each locomotor group gave slightly lower errors than those based on the total pooled sample. The results were then applied to hyaenodontid creodonts from the Eocene±Oligocene of North America. The estimated body masses (kg) are: Ar®a, 5´4±9´5; Prototomus, <6´0; Pyrocyon, 2´6; Sinopa, 1´3±1´4; Tritemnodon, 7´6±13; Prolimnocyon, 1´6; Thinocyon, 0´7±2´5; Machaeroides, 12; Limnocyon, 7´8± 16; Hyaenodon, 9´1±43. The various limb bone dimensions give different body mass values, but the variation in estimates is smaller compared to those derived from dental or cranial measurements.KEY WORDS: Hyaenodontidae, carnivorous mammals, body mass estimates, limb bone dimensions.

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Section: B O D Y M a S S E S T I M A T E S F O R H Y A E N O D O N T mentioning

confidence: 98%

Section: B O D Y M a S S E S T I M A T E S F O R H Y A E N O D O N T mentioning

confidence: 99%

Body Mass Estimates in Extinct Mammals from Limb Bone Dimensions: the Case of North American Hyaenodontids

Egi¹

2001

Palaeontology

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“…Order APATOTHERIA Scott and Jepsen, 1936 Family APATEMYIDAE Matthew, 1909 Genus APATEMYS Marsh, 1872b Apatemys bellulus Marsh, 1872b Figure 2.1-6, Table 1 Referred specimens. From UCM Locality 92189: RM1, UCM 70967; Lm1, UCM 95804; Lm2, UCM 68923; Rm3s, UCM 68424, 79676; Lm3, UCM 95807.…”

Section: Systematic Paleontologymentioning

confidence: 99%

Mammals from the earliest Uintan (middle Eocene) Turtle Bluff Member, Bridger Formation, southwestern Wyoming, USA, Part 1: Primates and Rodentia

Kelly

Murphey

2016

Palaeontol Electron

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“…Plesiomorphic amphicyonid postcranial morphology is represented by the Oligocene Daphoenus vetus Leidy (Hatcher, 1902b;Scott and Jepsen, 1936). The following comparisons of the smaller temnocyonine species are with D. vetus, while the large temnocyonines are compared with Daphoenodon superbus (Peterson, 1910), whose skeleton can be considered an essentially unmodified, scaled-up version of that of D. vetus.…”

Section: Cursorial Adaptations In the Limb Osteology Of Temnocyoninesmentioning

confidence: 99%

Evolution of Large Carnivores During the Mid-Cenozoic of North America: The Temnocyonine Radiation (Mammalia, Amphicyonidae)

Hunt¹

2011

Bulletin of the American Museum of Natural History

527

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The Mammalian Fauna of the White River Oligocene: Part I. Insectivora and Carnivora

Cited by 89 publications

References 0 publications

Body Mass Estimates in Extinct Mammals from Limb Bone Dimensions: the Case of North American Hyaenodontids

Body Mass Estimates in Extinct Mammals from Limb Bone Dimensions: the Case of North American Hyaenodontids

Mammals from the earliest Uintan (middle Eocene) Turtle Bluff Member, Bridger Formation, southwestern Wyoming, USA, Part 1: Primates and Rodentia

Evolution of Large Carnivores During the Mid-Cenozoic of North America: The Temnocyonine Radiation (Mammalia, Amphicyonidae)

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