Professional Education


  • Doctor of Philosophy, University of Georgia (2019)
  • Master of Science, California State University, Fullerton (2012)
  • Bachelor of Science, California State University, Fullerton (2009)

Stanford Advisors


Current Research and Scholarly Interests


My research at Stanford focuses on the evolution of body size of marine animals throughout the fossil record. Specifically, I am using body size as a predictor for marine animal extinction and origination throughout the last 500 million years. I am also working on body size evolution during intervals of rapid diversification of marine invertebrates during the early Paleozoic.

My overall research interests broadly focus on stratigraphic paleobiology and understanding the various environmental and biotic factors driving macroevolutionary patterns of marine invertebrates in the fossil record. I am also interested in the variation and reconciliation of geographic scale expressions of macroevolutionary patterns and global perturbations, such as mass extinctions.

Lab Affiliations


All Publications


  • The interaction of recovery and environmental conditions: An analysis of the outer shelf edge of western North America during the early Triassic PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Woods, A. D., Alms, P. D., Monarrez, P. M., Mata, S. 2019; 513: 52–64
  • Regional and environmental variation in escalatory ecological trends during the Jurassic: a western Tethys hotspot for escalation? PALEOBIOLOGY Monarrez, P. M., Aberhan, M., Holland, S. M. 2017; 43 (4): 569–86
  • Patterns of fossil distributions within their environmental context from the Middle Triassic in South Canyon, Central Nevada, USA JOURNAL OF PALAEOGEOGRAPHY-ENGLISH Monarrez, P. M., Bonuso, N. 2014; 3 (1): 74–89
  • A Holocene record of Pacific Decadal Oscillation (PDO)-related hydrologic variability in Southern California (Lake Elsinore, CA) JOURNAL OF PALEOLIMNOLOGY Kirby, M. E., Lund, S. P., Patterson, W. P., Anderson, M. A., Bird, B. W., Ivanovici, L., Monarrez, P., Nielsen, S. 2010; 44 (3): 819–39