Textbook Notes (369,074)
United States (206,189)
ZOO 4307C (9)
chu (9)
Chapter

11___

2 Pages
142 Views

Department
Biology - Zoology
Course Code
ZOO 4307C
Professor
chu

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
Description
Holostei (gars+bowfins) Monday, February 24, 2014 11:59 PM • Gars (lepisosteiformes) ○ Highly modified relative to other primative actinopterygians ○ Differ from all other living fishes in having vertebrae that are convex anteriorly and concave posteriorly,called opisthocoelous  All other fishes are concaveon both ends (A), called amphicoelous  • Bowfin (amiiformes) ○ Differ from all moreprimitive living actinopterygians in having single layered cycloid scales that lack ganoine ○ Caudal fin is abbreviate heterocercal,like gars (ie not very symmetrical) Amphibians Tuesday, February 25, 2014 6:29 AM • 3 extant lineages ○ Caecilians ○ Frogs ○ Salamanders • Amphibia is monophyletic • First amphibian during devonian era • First fossiles representtive of modern amphibians: permian • Recognizible frogs, salamanders, cacelians all
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit