A dip into Triassic seas
Mark Wilson June 13th, 2010
MITZPE RAMON, ISRAEL — We wish there was still some water in those seas because it was 41°C (106°F) this afternoon, but alas the only water we saw was that which was warmly sloshing in our plastic bottles. Today we looked at the Middle Triassic in the southern limb of Makhtesh Ramon as part of a project for Sarah Greene, a graduate student at the University of Southern California. She is working on fossil shellbeds as indicators of the tempo and mode of the Triassic recovery from the Permian extinctions. We are providing information from the Gevanim and Saharonim Formations. The shellbeds were easy to find, describe and measure.
The Gevanim Valley showing the Gevanim Formation in the foreground and the Saharonim as the yellowish unit in the upper right. Not a lot of shade here, you might notice.
Cross-section view of one of the Middle Triassic shellbeds in the Saharonim Formation.
[...] Sure, I could have picked a pristine shell from our collection, but I like the rugged character of this one. It is the terebratulid brachiopod Coenothyris oweni Feldman, 2002, from the lower Saharonim Formation (Middle Triassic) of Har Devanim, southern Israel. I picked it up, along with a dozen others, during our 2010 Israel expedition. [...]