📚 Encyclopedia Update — September 29, 2026

Encyclopedia

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Recent research into the Turonian ammonite Forresteria petrocoriensis has focused on its role as a biostratigraphic marker in the Tethyan realm. New analysis of microstructural shell growth indicates it was a moderately active nektonic predator within mid-shelf carbonate environ…

Ammonites hub

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Recent research into Eubostrychoceras japonicum has focused on high-resolution imaging of its heteromorph shell structure to better understand its buoyancy control and movement. Studies indicate that its unique coiling morphology likely served as a specialized adaptation for nic…

Ammonites hub

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Recent research focuses on the biostratigraphic utility of Anapachydiscus fresvillensis in defining the Campanian-Maastrichtian boundary in Europe. New occurrences in the Cotentin Peninsula have provided better constraints on the ammonite's rapid evolution and extinction pattern…

Encyclopedia

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Recent research on Metoicoceras whitei has refined its role as a key index fossil for the early Turonian stage of the Late Cretaceous, particularly in Western Interior Seaway biostratigraphy. New studies have utilized high-resolution geochronology to correlate its distribution a…

Ammonites hub

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Recent stratigraphic studies have refined the use of Gastrioceras carbonarium as a vital index fossil for the late Carboniferous, specifically within the Westphalian stages. Research into their sutural complexity has provided better insights into their hydrostatically controlled…