Reeder et al 2007 Described since I last taught Mammalogy 2014 Petrogale wilkinsi Wilkins rock wallaby 5 new species of Pithecia including P rylandsi Craseonycteris ID: 430622
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Slide1
Discovery of Mammalian Diversity
Burgin et al., 2018Slide2
New discoveries within the the past few years.
A potentially new species of beaked whale in the genus Berardius (Morin et al. 2016).G. volans
G.
sabrinus
G
.
oregonensis
Arbogast
et al. (2017)
described a new species
of flying squirrel.Slide3
Craseonycteris
thonglongyai bumble-bee bat < 2 gramsBalaenoptera musculus blue whale 200 Million grams
Simmons et al. 2008.
Nature, 451:818.
Thewissen
et al.1994. Science, 263:210.Slide4
Gliding species (e.g., Petaurus breviceps)
Saltatorial species (e.g., Dipodomys ordi)Slide5
Fossorial forms (e.g., Thomomys bottae)
Arboreal forms (e.g., Bradypus tridactylus)Myrmecophagous forms (e.g., Orycteropus afer)Slide6
Eleven Soft Anatomy Characters
1) *Lactation2) Vivipary3) *Hair4) *Sweat/*Sebaceous Glands5) Endothermy6) 4-Chambered heart7) *Annucleate RBCs
8) *Renal Artery
9) *Muscular Diaphragm
10) *Facial muscles
11) *Dorsal Pallium expands cerebrumSlide7
3. *Hair; 4.*Sebaceous & *Sweat glandsSlide8
Eleven Soft Anatomy Characters1) *Lactation2) Vivipary3) *Hair4) *Sweat/*Sebaceous Glands5) Endothermy6) 4-Chambered heart
7) *Annucleate RBCs8) *Renal Artery9) *Muscular Diaphragm10) *Facial muscles11) *Dorsal Pallium expands cerebrumSlide9
6.
Four-chambered Heart
Nucleated erythrocytes
7. *
Annucleate
erythrocytesSlide10
8. *Renal Artery and Vein
Many other vertebrates have a renal portal system.Slide11
9. *
Muscularized DiaphragmSlide12
10. *Facial MusclesSlide13
11. *Dorsal PalliumSlide14
8 Cranial CharactersDouble occipital condyle*Atlas/Axis complex*Tympanic bone*Three ear ossicles*Dentary is only bone in mandibleSingle external narisSecondary palate
Respiratory turbinatesSlide15
2. *Atlas/Axis ComplexSlide16
8 Cranial CharactersDouble occipital condyle*Atlas/Axis complex*Tympanic bone*Three ear ossicles*Dentary is only bone in mandibleSingle external narisSecondary palate
Respiratory turbinatesSlide17
4.
*3 Ear Ossicles
Ancestral
MammalianSlide18
8 Cranial CharactersDouble occipital condyle*Atlas/Axis complex*Tympanic bone*Three ear ossicles*Dentary is only bone in mandibleSingle external narisSecondary palate
Respiratory turbinatesSlide19
5 Dental CharactersLack palatal teeth*DiphyodontThecodontHeterodontMulticuspateSlide20
Dental CharactersSlide21
2 Axial Skeleton Characters
7 (9)
12 or 13
Variable
2.
*Ribs
only on
thoracic vertebrae
1. *Extreme regionalizationSlide22
4 Appendicular Skeleton Characters
*Limb bones have epiphyses.
*
Calcaneum
.
*Reduction of elements in limb girdles.
Parasagittal limb posture.Slide23
1. *Limb bones have epiphysesSlide24
2. *
Calcaneum (Heel bone)
CalcaneumSlide25
No anterior/posterior coracoids,
No interclavicle
3a. Pectoral Girdle
Ancestrally, there was an
interclavicle, and both
anterior and posterior
coracoids.Slide26
3b. Pelvic Girdle
Ilium, Ischium and Pubis fusedto form the Innominate bone.Slide27
4. Limbs Rotate under Body
(Parasagittal posture)