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Taxonomy and Biostratigraphy of Middle and Late Triassic Elasmobranch Ichthyoliths from Northeastern British Columbia
Diverse and abundant Middle and Late Triassic elasmobranch ichthyoliths (microscopic shark teeth and scales) coexisting with conodonts, ammonoids, and bivalves recovered from carbonates in the Peace River area of British Columbia provide an excellent biostratigraphic framework for Triassic strata. This report provides systematic descriptions and illustrations of Triassic elasmobranch ichthyoliths including seven species of teeth and 19 new form genera and 53 new form species of scales. A provisional ichthyolith zonation for the Middle and Upper Triassic is proposed for the Peace River area, and new approaches to ichthyolith identification are discussed. Results from this study demonstrate the use of ichthyoliths in basin analyses to data and correlate strata.
Plankton Stratigraphy: Volume 2, Radiolaria, Diatoms, Silicoflagellates, Dinoflagellates and Ichthyoliths
This comprehensive synthesis of our knowledge of the biostratigraphy of marine plankton is the work of an international team of eighteen authors. It covers all the major fossil groups that can be used to date sediments and rocks in the time interval Late Mesozoic to Holocene. Altogether more than 3200 taxa are considered, almost all of which are illustrated and depicted on range charts, making the book a valuable work of reference in the earth sciences. For ease of reference by specialists interested in either calcareous or non-calcareous microfossils, the original work is now divided into two independent volumes. Volume 2 describes siliceous and other non-calcareous microfossils, covering radiolaria, diatoms, silicoflagellates, dinoflagellates and ichthyoliths.
Pennsylvanian Ichthyoliths from the Shawnee Group of Eastern Kansas
Repetition of lithologies in the Shawnee Group of eastern Kansas provides an ideal situation for testing the dependence of such fossil types as ichthyoliths on their paleoenvironments. Ichthyoliths are abundant and diverse in the Shawnee Group and occur in horizons that are otherwise unfossiliferous.
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