FW 4136 Lecture Notes - Lecture 11: Gogo Formation, South American Lungfish, Latimeria

• School: UMN
• Department: Fisheries and Wildlife
• Course: FW 4136
• Professor: Andrew Simmons

Document Summary

Characteristics of sacropterygii: monobasic fins, has a joint between the body and fin. Intra-cranial joint: the joint, only seen in coelacanth now. Coelacanthiformes: coelacanths, extensive fossil record, believed to have gone extinct at the end of the mesozoic (65mya, rediscovered in the 1960s. Marjory courtney latimer: curator of a small natural history museum in east london, ran all over trying to get preservative. Paleontologist: gave crap about marjory courtney latimer, wanted to see the physiology of the coelacanth, described as a new species, called it latimeria chalumnae, obsessed with trying to find another one. A few divers died found a bunch living around cape hope there are some living in waters in between madagascar and africa: also found in indonesia, mark irvin found coelacanth in sulawesi indonesia. In actinopteri, there is neopterygii, then inside neopterygii is the holostei. Single dorsal fin: ganoin , dorsal caudal fulcra, three pairs of otoliths.