| |
| | Zoogeography |
 | | Modern groups of fish began to develop in both Laurasia and Gondwanaland. |
 | | Laurasia - Esocidae, Umbridae, and Salmonidae, and the exclusively North American Percopsidae (trout-perch), Aphredoderidae (pirate perch), and Amblyopsidae (cave fishes).- future North America and Eurasia. |
 | | Oriental region becomes separated from rest of Asia as Himalayas rise, in late Eocene subfamilies of Cyprinidae develop, and Cobitidae (loaches), and Siluridae, and many ostariophysian families with limited modern distributions. |
| www-personal.umich.edu /~pwebb/NRE422-BIO440/lec08.html (518 words) |
|