Ver. 1.1 Excel Ver. 2.0 Web John J. Sepkoski Jr. (University of Chicago) Database of ~36,000 genera (Bull. Amer Pal., 363) Lists taxonomy and stratigraphic.

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Presentation transcript:

Ver. 1.1 Excel Ver. 2.0 Web John J. Sepkoski Jr. (University of Chicago) Database of ~36,000 genera (Bull. Amer Pal., 363) Lists taxonomy and stratigraphic ranges Marine animals only Limitations: Few soft-bodied animals No plants, algae, fungi, bacteria No terrestrial animals Used for recognizing evolutionary patterns

Make graphs of Sepkoski data Ver. 1.1 for MS Excel 4 main functions DOX: Diversity, origination, extinction – Count, Rate Stratigraphic range Limited time intervals Limited of 4000 genera analyzed at one time. Ver. 2.0 online Website Previous DOX functions, with new – Sepkoski Curves (Evol. Faunas) – Rate calculations more flexible New Period-specific graphs Overall greater flexibility for time units Greater computing capacity – server-side computation permits all 36,000 to be analyzed Funded by NSF through Static database, using current GTS, designed for student audience

Speciation Get your data Select and copy group from Compendium Ver. 1.1 for Excel

Speciation Transfer the data Copy/Paste group in &Data at Cell A8 A8 Ver. 1.1 for Excel

Speciation Other graphs made by &Data Ver. 1.1 for Excel

Speciation Other graphs made by &Data Ver. 1.1 for Excel

Speciation Other graphs made by &Data Ver. 1.1 for Excel

Speciation The 3 Big mass extinctions Blue line shows diversity at 2Ma interval, gray line shows Epoch intervals Ver. 1.1 for Excel

Paleography Stratigraphic Ranges Ver. 1.1 for Excel

Ver. 2.0 Web

Ver. 2.0 Web

Sepkoski Curve E.F.s Modern Demospongia Gastropoda Bivalvia Malacostraca Gymnolaemata Echinoidea Chondrichthyes Osteichtheyes Paleozoic Anthozoa Cephalopoda Ostracoda Stenolaemata "Articulata" Asteroidea Crinoidea Blastoidea Cambrian Polychaeta Hyolitha Orthothecimorpha Hyolithomorpha Tergomya Heliconelloida Trilobita “Inarticulata” Eocrinoidea “Hyolithida” indet.