Anatomy of Amphibians
General Amphibian Traits
Skeleton mostly bone
3-5 digits on forelimb (most 4) / 5 digits on hind limb
3 chambered heart 2 atria and 1 ventricle
Hundreds of convergent cases of air-breathing
using accessory structures.
to oxygen d
l i and
Most species are tropical freshwater.
ZOOL 103: Vertebrate zoology
Purpose: This course unit is intended to equip students with knowledge and skills on
phylum chordate,the classisfication,evolution,morphology,structural and functional adaptations.
The chordates are a group of particular
interest to us as we belong to it, being
members of the subphylum Vertebrata.
The chordates include all of the
vertebrates (fish, amphibians, reptiles,
mammals and birds), but also two nonvertebrat
Evolution/Basics Lecture Outline
Page 1 of 12
Based on Pough et. al, 1989. Vertebrate Zoology - 3rd Ed. MacMillan
Hickman et al., 2001. Integrated Principles of Zoology - 11th Ed. William C.
Biology 222 Vertebrate Zoology
Intro to Vertebr
Questions from week one?
Evolution and Ecology
Fishes of Wisconsin
An overview of phylogeny and
functional morphology in the
context of ecology
When traits evolved
The characteristics of main groups
Background to understand
Chapter #1 The Diversity, Classification, and Evolution of Vertebra
Chapter #2 Vertebrates and Basic Structure, pg. 19 45.
Chapter #3 Early Vertebrates, Jawless and Jawed Vertebrates, pg. 4
What is a (Liss)Amphibian?