Biostratigraphy.com, LLC provides multidiscipline biostratigraphic services, including palynology, foram, nannofossil and other paleontological analyses. Formed after the BP-Amoco-Arco & Exxon-Mobil mergers, we provide big company biostratigraphy services to any size company. From our extensive worldwide network of affiliated experts, we select the best expert, or team of experts, to meet your needs. Custom software and databases, developed over the last 20 years, allow higher age resolution than usual. One database has over one million age citations for fossil occurrences. Re-studying existing biostratigraphic data sets with these tools often yields 2 to 3 times higher age resolution. Depositional systems (paleoenvironments) are interpreted within age constrained intervals. For Tertiary strata, paleoenvironments are defined using transfer functions from modern analogs; for the pre-Tertiary, multivariate analyses are used to extract environmental groupings that define depositional systems. All analysts typically have 25+ years experience in stratigraphic paleontology.