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Vertebrate Classes - PowerPoint

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					Vertebrate classification

(with example)
Kingdom = Animalia Phylum = Chordata Subphylum = Vertebrata Class = Mammalia Order = Marsupialia Family = Didelphidae Genus = Didelphis Species = Didelphis virginiana (Virginia opossum)
http://www.animals-online

Kingdom Animalia
http://www-class.unl.edu/bios201a/

Animal cell

Phylum Chordata
http://www.anselm.edu/homepage/jpitocch/genbios/34-02-ChordateCharacters-L.gif

Amphioxus: a non-vertebrate chordate

Subphylum Vertebrata

http://face-and-emotion.com/dataface/physiognomy/media/cranium_side.jpg

http://medic.med.uth.tmc.edu/Lecture/labeled/bs106001.gif

Iowa vertebrate classes
http://www.cortland.edu/herp/keys/images/frogs/
http://www.iowadnr.com/fish/iafish/abl-card.html

http://ndis.nrel.colostate.edu/herpatlas/ http://www.fcps.k12.va.us/StratfordLandingES/

http://static.flickr.com/ http://www.fnal.gov/ecology/wildlife/pics/

Class
Jawless fishes (Cephalaspidomorphi)

Jaws

Tetrapod

Amniote egg

Uniform Internal temperature

Mammary glands

Jawed fishes (Osteichthyes)
Amphibians (Amphibia)

Reptiles (Reptilia)
Birds (Aves)

Mammals (Mammalia)

Jawless fishes (Cephalaspidomorphi)

http://www.zoo.ufl.edu/courses/vertzoo/Images/

http://www.nwrc.usgs.gov/world/images/lamprey.jpg

Sea lamprey (not an Iowa species)
http://www.rsc.org/images/lamprey-300_tcm18-39592.jpg

Jawed fishes (Osteichthyes)
Iowa DNR

Class
Jawless fishes (Cephalaspidomorphi)

Jaws

Tetrapod

Amniote egg

Uniform Internal temperature

Mammary glands

No

Jawed fishes (Osteichthyes)
Amphibians (Amphibia)

Yes

Yes

Reptiles (Reptilia)
Birds (Aves)

Yes

Yes

Mammals (Mammalia)

Yes

Amphibians (Amphibia)
http://www.lautringer.de/Alle_Dinosaurier_in_Kaiserslau/Dinosaurier_Album_1/

Eusthenopteron (a jawed fish) could be the ancestor of amphibians

Krohne (2000)

http://www.herpnet.net/Iowa-Herpetology/

http://fwie.fw.vt.edu/VHS/

Class
Jawless fishes (Cephalaspidomorphi)

Jaws

Tetrapod

Amniote egg

Uniform Internal temperature

Mammary glands

No

No

Jawed fishes (Osteichthyes)
Amphibians (Amphibia)

Yes

No

Yes

Yes

Reptiles (Reptilia)
Birds (Aves)

Yes

Yes

Yes

Yes

Mammals (Mammalia)

Yes

Yes

Reptiles (Reptilia)
http://www.herpnet.net/Iowa-Herpetology/images/

Amniote Egg
http://epod.usra.edu/archive/images/egg_mass.jpg

http://tolweb.org/tree/ToLimages/Amniote_egg.gif

Fish, amphibian eggs are unshelled

http://www.wvup.edu/ecrisp/imageJB7.JPG

Class
Jawless fishes (Cephalaspidomorphi)

Jaws

Tetrapod

Amniote egg

Uniform internal temperature

Mammary glands

No

No

No

Jawed fishes (Osteichthyes)
Amphibians (Amphibia)

Yes

No

No

Yes

Yes

No

Reptiles (Reptilia)
Birds (Aves)

Yes

Yes

Yes

Yes

Yes

Yes

Mammals (Mammalia)

Yes

Yes

Yes

Birds (Aves)
http://www.dinosaur-museum.org/featheredinosaurs/deino-lg.jpg http://members.at.infoseek.co.jp/komiyagi/archaeopteryx.jpg

Archaeopteryx (oldest known bird?)

Saurischian dinosaur

Class
Jawless fishes (Cephalaspidomorphi)

Jaws

Tetrapod

Amniote egg

Uniform internal temperature No

Mammary glands

No

No

No

Jawed fishes (Osteichthyes)
Amphibians (Amphibia)

Yes

No

No

No

Yes

Yes

No

No

Reptiles (Reptilia)
Birds (Aves)

Yes

Yes

Yes

No

Yes

Yes

Yes

Yes

Mammals (Mammalia)

Yes

Yes

Yes

Yes

http://www.dinooption.com/img04/cynognathus01.jpg

Mammal (Mammalia) ancestors?
http://www.simnet.is/xpert/cynognathus.jpg

Source unknown

Therapsida (e.g., Cynognathus)

Class
Jawless fishes (Cephalaspidomorphi)

Jaws

Tetrapod

Amniote egg

Uniform internal temperature No

Mammary glands No

No

No

No

Jawed fishes (Osteichthyes)
Amphibians (Amphibia)

Yes

No

No

No

No

Yes

Yes

No

No

No

Reptiles (Reptilia)
Birds (Aves)

Yes

Yes

Yes

No

No

Yes

Yes

Yes

Yes

No

Mammals (Mammalia)

Yes

Yes

Yes

Yes

Yes

Vertebrate characteristics and evolution references
(available in lab)
• Colbert, E.H. 2001. Colbert’s evolution of the vertebrates.Wiley-Liss.
• Feldhamer, G.A., L.C. Drickamer, S.H. Vessey, and J.F. Merritt. 2004. Chapter 4: evolution and dental characteristics, in Mammalogy. McGrawHill.


				
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