PT  - JOURNAL ARTICLE
AU  - Tidwell, William D.
AU  - Rushforth, Samuel R.
AU  - Reveal, James L.
AU  - Behunin, Homer
TI  - Palmoxylon simperi and Palmoxylon pristina: Two Pre-Cretaceous Angiosperms from Utah
AID  - 10.1126/science.168.3933.835
DP  - 1970 May 15
TA  - Science
PG  - 835--840
VI  - 168
IP  - 3933
4099  - http://science.sciencemag.org/content/168/3933/835.short
4100  - http://science.sciencemag.org/content/168/3933/835.full
SO  - Science1970 May 15; 168
AB  - Petrified palm stems (Palmoxylon simperi and Palmoxylon pristina) from the Middle Jurassic Arapien Shale Formation near Redmond, Sevier Country, Utah, are the first unequivocal angiosperms reported from pre-Cretaceous strata.