GLY-1102 Lecture Notes - Lecture 16: Thecodontia, Sacrum, Mesozoic
17 Sep 2018
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Document Summary
Group of rock units of the southwestern us. Ghost ranch shows us some late triassic rocks. Evaporation rates can tell us a lot about climate and temperature. Discovered in 1947 near ghost ranch, new mexico in small quarry in chinle formation same rocks in petrified forest. Lets us know when we got dinos on the earth. Originally thought to have evidence of cannibalism, skeletons inside skeletons. To collect and die off, probably one big event. Physiology adapted to arid climate upper triassic very dry. Ma(cid:373)(cid:373)als e(cid:454)tre(cid:373)el(cid:455) depe(cid:374)de(cid:374)t o(cid:374) (cid:449)ater to get rid of (cid:449)aste, di(cid:374)os did(cid:374)"t reall(cid:455) (cid:374)eed (cid:449)ater to do this. Excrete uric acid paste, did this without water. Reptiles reestablish diversity of now gone therapsids, either outcompeted or filled up empty space. Intense volcanism at the end of triassic 9201 ma) Pangea is being ripped apart by tectonic shifts, volcanoes right in the middle of the supercontinent.
