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CARNIVORA Systematics & Biology

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1 CARNIVORA Systematics & Biology
Mammalogy – EEOB 625 23 February 2004

2 Risks &Advantages of Carnivory
Few orders have been successful, n = ? Adaptations: dental = canines & carnassials digestive & locomotory adaptations Primitive Order Creodonta primitive carnassials: (M2/ M3) Cimolestes: weasel-like member of the ancestral family Miacidae

3 Fig Feldhamer See Fig Vaughan

4 Adaptations of Carnivores
Dental ‑ Carnassial Teeth: last upper premolar & first lower molar (P4/ M1) Carnassial function - shearing action Digestion: Simple with rapid passage Locomotion: Plantigrade to Digitigrade What is the most highly derived family? Function & control of retractile claws

5 Fig. 6.6B, Feldhamer

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8 Shape of the Mandibular Fossa
Musteliae: “C”-shaped Ursidae flat

9 lion hyena dog Fig. 15.4

10 Fig. 6.2, Feldhamer

11 Fig. 6.2

12 Adaptations of an omnivorous carnivore
Schwartz (1959)

13 Suborder Feliformia “Cat‑like” taxa in four families
Felidae: most highly derived, speciose (36 species, Herpestidae with 37 species), and nearly Worldwide in distribution Herpestidae & Viverridae Hyaenidae: Highest in adaptive radiation? Ardwolves: transitional to true myrmecophagy?

14 Schwartz & Schwartz (1959)

15 Adaptive radiation in Hyaenidae
Spotted hyaena Ardwolf

16 Suborder Caniformia “dog‑like”families &marine carnivores
Procyonidae: the New World ominvores Giant Panda ‑ a member of Ursidae? ‑ anatomy of the manus and skull ‑ DNA hybridization & other techniques The ursid phylogenetic tree Mustelidae: Origin & diversity (65species)

17 Brown bear Giant Panda Raccoon

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