Geobulletin alpha

Source info:

Author:	Bill Parker
Date:	2008-09-08 00:00:00
Blog:	Chinleana
URL:	http://chinleana.blogspot.com/2008/09/tr-j-terrestrial-extinction-actually.html

Summary:

Adam Yates most recent post over at Dracovenator and a new abstract by Zeigler and Geissman has got me thinking more about faunal transitions between the Late Triassic and Middle Jurassic. As I stated in an earlier post, Chinle Formation faunal composition remains relatively consistent from the oldest to youngest localities and it is not until you get into the uppermost units of the formation and

Content analysis:

Stratigraphic context:

Recognized stratigraphic terms [n]:	Jurassic [1] Middle Jurassic [1] Triassic [1] Chinle Formation [1]
Agenames chronostratigraphy [rating]:	Jurassic [0.5] Triassic [0.5] Mesozoic [0.75] Phanerozoic [0.75] Middle Jurassic [0.1] Upper Triassic [0.1] [0.1]