Definition of "biostratigraphy" []

• The study of the spatial and temporal distribution of fossil organisms, often interpolated with radiometric, geochemical, and paleoenvironmental information as a means of dating rock strata. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "He noted that he has published several articles with Lucas related to stratigraphy and biostratigraphy."
• "Jack worked in many different areas of vertebrate paleontology during his long career, but he is best known for his pioneering research on the Tertiary mammals and biostratigraphy of west Texas and Mexico."
• "As for biostratigraphy, the mass-extinction of foraminifers and nannofossils approximates the K/T boundary much more accurate."