Mesozoic Paleobiogeographic Patterns
In much of the Mesozoic there were two major continents with some partial on and off connections.
In the early Mesozoic the wide spread Lystrosaura fauna of the early Triassic was found in (modern)
Karoo Africa, Panchet India Sinkiang China & Fremont Antarctica.
(Was China part of Gondwanaland)?
http://www.mathematical.com/dinolystrosaur.html
http://epsc.wustl.edu/pic_sirius.htm
On addition the slightly younger Cynognathus fauna occurred in South America, India, Africa & China
http://www.geocities.com/CapeCanaveral/Hall/1636/synapsida/therapsida.html
http://www.peabody.yale.edu/mural/triassic/Text.html
The Jurassic is relatively poorly known
In the Cretaceous Asia, Europe, North America were connected
Gondwana consisted of Africa, S. America, India, Australia & Antarctica
Maybe some connection between Africa and Eurasia
And perhaps some connection between N & S America but separating at this time
In the Cretaceous the major orders of reptiles were:
http://www.pressroom.com/~cromag/PALEOTERMS.htm
Crocodilia
http://www.embl-heidelberg.de/~uetz/families/Crocodylidae.html
Saurischia "Lizard-hipped"
 http://www.ucmp.berkeley.edu/diapsids/saurischia/saurischia.html
Ornithishia "Bird-hipped"
 http://www.ucmp.berkeley.edu/diapsids/ornithischia/ornithischia.html
Cerotopsids
http://www.ngdc.noaa.gov/mgg/sepm/palaios/9804/brinkman.HTML
Stegosaurs
http://palaeo.gly.bris.ac.uk/dinobase/picturesJR/Kentrosaurus.gif
 http://www.monsters4u2.com/dinosaurs/stego.shtml
Pterosaurs
Flying reptiles
 http://www.ucmp.berkeley.edu/diapsids/pterosauria.html
Chelonia
Turtles
 http://mitglied.lycos.de/kordikova/origin_of_chelonians.htm
Squamata
Lizards & Snakes
Choristodera
Champosaurus
http://home.houston.rr.com/vnotes/notes/Champsosauridae.html
3 orders of Mesozoic reptiles probably originated in Gondwana
3 probably originated in Laurasia
http://www.kheper.auz.com/gaia/Mesozoic/Mesozoic.htm
HOME101
FW fishes
Gondwana
Lepidosiren
Osteoglossans
Characidsa
Cichlids
Laurasia
Polydontidae
Amiidae http://www.cnr.vt.edu/efish/families/amiidae.html
Acipenseridae
Percids
Centracharids
The Cenozoic was about as long as the Mesozoic but higher diversity
http://search.netscape.com/search.psp?cp=nrpkwphoptop&search=Centracharids&x=28&y=13&pagec
p=srp
http://gwis2.circ.gwu.edu/~atkins/newwebpages/Mammalia/extinct/extinctmammals.html
Laurasia
Insectivora
Chiroptera
Primates
Carnivora
Perissodactyla
Artyodactylidae
Rodentia
Lagomorpha
Pholidota
Gondwana
Edentata
Notoungulata
Paucituberculata
Pyrotheres
Litopterna
Astrapotheria
Six orders of mammals originated in S America maybe 9in Laurasia