Were there mammalian pursuit predators in the tertiary? Dances with wolf avatars

@article{Janis2005WereTM,
  title={Were there mammalian pursuit predators in the tertiary? Dances with wolf avatars},
  author={Christine M. Janis and Patricia Brady Wilhelm},
  journal={Journal of Mammalian Evolution},
  year={2005},
  volume={1},
  pages={103-125}
}
Fast-running, long-legged pursuit carnivores are familiar members of the present-day ecosystem, and it has been assumed that extinct large predators took similar ecomorphological roles (i.e., were “wolf avatars”) in past faunas. While these fossil taxa may also have been meat-specialists, we present evidence from limb morphology to show that there was no modern type of pursuit predator until the latest Tertiary. In contrast, ungulates evolved longer legs similar to those of present-day… 
Forelimb anatomy and the discrimination of the predatory behavior of carnivorous mammals: The thylacine as a case study
TLDR
It is shown that the three different types of predators can be distinguished by their morphology, both in analyses where all the forelimb bones are included together, and in the separate analyses of each bone individually.
Were there pack-hunting canids in the Tertiary, and how can we know?
  • K. Andersson
  • Environmental Science, Geography
    Paleobiology
  • 2005
TLDR
Recent large canids are poor ecological, morphological, and behavioral analogs for their large fossil relatives, removing an essential part of the argument for social pack-hunting in these forms.
The evolution of cursorial carnivores in the Tertiary: implications of elbow-joint morphology
  • K. Andersson, L. Werdelin
  • Environmental Science, Geography
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2003
TLDR
It is shown morphometrically that in extant carnivores, the elbow joint has evolved in two distinct directions with mutually exclusive implications for locomotor ability and prey procurement.
Correlates between calcaneal morphology and locomotion in extant and extinct carnivorous mammals
TLDR
The results support greater locomotor diversity for nimravids, usually considered to be more arboreal, than previously expected, and aspects of the palaeobiology of, 47 extinct carnivorous mammal taxa, including both Carnivora and Creodonta.
In the Pursuit of the Predatory Behavior of Borophagines (Mammalia, Carnivora, Canidae): Inferences from Forelimb Morphology
TLDR
The results indicate that borophagines displayed a limited set of adaptions towards efficient running, including reduced joint mobility in both the elbow and the wrist, aspects in which they resemble the living canids.
Ecometrics and Neogene faunal turnover: the roles of cats and hindlimb morphology in the assembly of carnivoran communities in the New World
ABSTRACT Cats possess some of the highest ankle gear ratios of any extant carnivorans, a feature that facilitates leaping and sprinting involved in ambush predation and scansorial lifestyles. In
The evolution of a single toe in horses: causes, consequences, and the way forward.
TLDR
It is found unlikely that a single evolutionary driver was responsible for the evolution of monodactyly, because changes in body size, foot posture, habitat, and substrate are frequently found to influence one another (and to connect to broader potential drivers, such as changing climate).
LOCOMOTION IN THE FASTEST RODENT, THE MARA Dolichotis patagonum (CAVIOMORPHA; CAVIIDAE; DOLICHOTINAE)
TLDR
It was observed that maras use lateral walk at low speeds and pace at moderate speeds, and that mara are able to perform pronking, a probable alarm or fitness signal, and new data and analyses are provided.
The evolution of micro-cursoriality in mammals
TLDR
The extraordinary running speed and digitigrady of elephant-shrews was established in the Early Eocene in the earliest macroscelid Prodiacodon, but was probably inherited from Paleocene, Holarctic stem macroscelids.
EVOLUTION OF SPRINT SPEED IN AFRICAN SAVANNAH HERBIVORES IN RELATION TO PREDATION
  • J. Bro-Jørgensen
  • Environmental Science
    Evolution; international journal of organic evolution
  • 2013
TLDR
It is shown that sprint speed is strongly predicted by the vulnerability of prey to their main predators; however, the direction of the link depends on the hunting style of the predator, and that predator hunting style influences the intensity and consistency with which selection on speed is coupled between particular species.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 69 REFERENCES
Locomotor diversity within past and present guilds of large predatory mammals
TLDR
Results indicate that levels of morphologic and inferred ecologic similarity between large predators are higher in the tropical grassland guild of East Africa than in the equivalent guilds of either tropical or temperate forest.
An ecological theory for the origin of Homo
TLDR
A new brain-body growth curve for early Homo indicates extension of the fetal pattern well into the postnatal interval, implying that neonates were highly immature so that adults had to be fully terrestrial, and represented a crisis that led to the evolution of Homo by compelling some australopithecine populations to adopt a fully terrestrial existence.
Trophic diversity in past and present guilds of large predatory mammals
TLDR
It is clear that the basic pattern of adaptive diversity in dental morphology among coexisting carnivores was established at least 32 million years ago and it appears that interspecific competition for food has acted similarly to produce adaptive divergence among sympatric predators in com- munities that differ widely in time, space, and taxonomic composition.
Fossil History of the Terrestrial Carnivora
Carnivores, because of their position on the ecological pyramid, are considerably rarer than their prey. They are also often intelligent and solitary animals, so that their chances of dying in a
The Plio-Pleistocene hyaena Chasmaporthetes ossifragus from Florida
  • A. Berta
  • Environmental Science, Geography
  • 1981
ABSTRACT Maxillary fragments, rami, and postcrania referred to the hyaenid Chasmaporthetes ossifragus are recorded from two Florida faunas, Santa Fe River (probably late Blancan) and Inglis IA (early
Skeletal indicators of locomotor behavior in living and extinct carnivores
TLDR
Results demonstrate that osteological indices are good predictors of locomotor behavior among extant carnivores.
SOME LOCOMOTORY ADAPTATIONS IN MAMMALS.
TLDR
The shoulder muscles of the horse have a small mechanical advantage and are therefore adapted to produce rapid movements of the limb; these muscles in the armadillo have a larger mechanical advantage to produce slower movements, while exerting a greater force.
Functional Morphology and the Evolution of Cats
TLDR
Three basic morpho types are proposed for cats on the basis of their upper canines: conical-toothed cats with short, unserrated canines having a round cross-section; scimitar-tooting cats having short, broad canines; and dirk­ toothed cats having long, slender canines which usually have fine serrations.
Carnivore Group Living: Comparative Trends
TLDR
This chapter briefly review selected hypotheses for the evolution and maintenance of grouping in carnivores, focusing on those that are broadly applicable across the order and are testable from the available comparative data.
Iterative evolution of hypercarnivory in canids (Mammalia: Carnivora): evolutionary interactions among sympatric predators
TLDR
It is suggested that the iterative pattern of specialization of the lower molars for meat-slicing that is seen in all families of carnivores, past and present, is probably a result of intraspecific competition for food, perhaps among littermates.
...
1
2
3
4
5
...