Flashcards
Phanerozoic [Paleozoic cont...] (24)
Flashcards do conjunto (11)
- 1Do fossil chordates appear in Cambrian rocks?Yes - the first chordates
-Haikouella - China - 2Does fossil fish bone appear in Cambrian rocks?Yes - first fish with bone
Upper Cambrian Wyoming - 3☼What are lagerstatten?☼-The Mother Load!
-Soft-bodied fossil deposits - 4What is the Burgess Shale? Where is it? How old is it?Lagerstatten
-Mt. side near Field, Yoho National Park British Columbia, w. Canada
-Middle Cambrian
-Discovered in 1909 by Charles Walcott - 5What kind of fossil preservation & rock matrix occurs at Burgess Shale?Carbonization
- 6Are soft parts of organisms preserved in Burgess Shale?Yes - legs, antennae, guts, organs, etc.
- 7What kinds of creatures are found in Burgess Shale?-Lots of weird creatures (High # of extinct body plans)
-Includes large predators (2 to 3 M long) - 8What is the Chengjiang deposit? Where is it? How old is it?Lagerstatten
-Fuxian lake & Dian lake area, Yunnan Province, South China
-Early Cambrian
-Discovered in 1984 by Hou Xianguang - 9How are the fossils preserved in the Chengjiang deposit?~3-D, reddish
- 10What's the rock matrix like in the Chengjiang deposit?Soft, yellowish-brown clayshale
- 11Are lagerstatten relatively common or rare in the Cambrian?>80 more Cambrian lagerstatten known