SUBPHYLUM VERTEBRATA
PISCES (Fishes)
SUPERCLASS AGNATHA (Jawless Fishes)
SUPERCLASS GNATHOSTOMATA (All Jawed Vertebrates)
PISCES (Fishes)
CLASS CHONDRICHTHYES (Cartilaginous Fishes)
CLASS OSTEICHTHYES (Bony Fishes)
SUBCLASS ACTINOPTERYGII (Ray-finned Fishes)
SUBCLASS SARCOPTERYGII (Fleshy-finned Fishes)
TETRAPODS (Terrestrial Forms)
CLASS AMPHIBIA (Amphibians)
AMNIOTES (Amniotic Egg)
"CLASS REPTILIA"
SAUROPSIDS
ANAPSIDS (Turtles)
DIAPSIDS
"Lizard/Snake Lineage"
Archosaurs
"CLASS AVES" (Birds)
SYNAPSIDS
CLASS MAMMALIA (Mammals)
Monotremes
Marsupials
"Placental Mammals"
CHARACTERISITICS OF CLASS MAMMALIA
1. MAMMARY GLANDS => MILK
(Extended parental care)
2. 3 EAR OSSICLES
(Hearing)
3. ENDOTHERMY & HOMEOTHERMY
(Vs. Ectothermy & Poikilothermy)
4. HAIR
(Insulation)
5. HETERODONT DENTITION
(Specialized teeth)
6. BONY SECONDARY PALATE
(Separation of oral & nasal air streams)
7. MUSCULAR DIAPHRAGM
(Respiration)
3 REPRODUCTIVE STRATEGIES OF VERTEBRATES
1. OVIPARITY
INTERNAL OR EXTERNAL FERTILIZATION
EXTERNAL INCUBATION
EMBRYO FED BY YOLK
YOUNG HATCH FROM EGG
2. OVOVIVIPARITY
INTERNAL FERTILIZATION
INTERNAL INCUBATION
EMBRYO FED BY YOLK
LIVE BIRTH
3. VIVIPARITY
INTERNAL FERTILIZATION
INTERNAL INCUBATION
EMBRYO FED BY YOLK + ADDITIONAL NOURISHMENT
LIVE BIRTH
COMPONENTS OF AMNIOTIC EGG
1. SHELL
2. ALBUMIN
3. YOLK &YOLK SAC
EXTRA-EMBRYONIC MEMBRANES
UNIQUE TO AMNIOTES
4. CHORION
5. AMNION
6. ALLANTOIS