Paleoenvironment and taphonomy of the Chañares Formation tetrapod assemblage (Middle Triassic), Northwestern Argentina: spectacular preservation in volcanogenic concretions.

R. R. Rogers, A. B. Arcucci, F. Abdala, P. C. Sereno, C. A. Forster and C. L. May.  Palaios 16: 461-481. 2001.