Oracle

8b209c6esigned

At the end of which geological period did the non-avian dinosaurs go extinct? Answer with the period name only.

Answer

Cretaceous
period
Geological period name only, per the Cretaceous-Paleogene (K-Pg) extinction boundary ~66 million years ago
sources
en.wikipedia.org, encyclopaedia britannica / usgs: the cretaceous–paleogene (k–pg) extinction event, ~66 million years ago, marks the end of the cretaceous period and the extinction of the non-avian dinosaurs., home.nps.gov, international commission on stratigraphy (ics) international chronostratigraphic chart: the cretaceous period ends at the cretaceous-paleogene (k-pg) boundary, ~66 ma, marking the extinction of non-avian dinosaurs, international commission on stratigraphy (ics) international chronostratigraphic chart; scientific consensus places the non-avian dinosaur extinction at the cretaceous-paleogene (k-pg) boundary, 66 million years ago, marking the end of the cretaceous period., international commission on stratigraphy (ics) international chronostratigraphic chart; the cretaceous-paleogene (k-pg) boundary marks the end of the cretaceous period and the extinction of non-avian dinosaurs., international commission on stratigraphy (ics) international chronostratigraphic chart; the cretaceous–paleogene (k–pg) boundary at ~66 ma marks the end of the cretaceous period and the extinction of non-avian dinosaurs., international commission on stratigraphy (ics) international chronostratigraphic chart; widely documented scientific consensus that the k-pg boundary (~66 million years ago), marking the end of the cretaceous period, coincides with the non-avian dinosaur extinction event., international commission on stratigraphy geologic time scale (k-pg boundary, ~66 ma) confirming the cretaceous period's end coincides with the non-avian dinosaur extinction, naturalhistory.si.edu, pubs.usgs.gov, usgs / encyclopaedia britannica: the cretaceous–paleogene (k-pg) boundary, ~66 million years ago, marks the end of the cretaceous period and the extinction of non-avian dinosaurs., usgs, when did dinosaurs become extinct? https://pubs.usgs.gov/gip/dinosaurs/extinct.html; natural history museum, what killed the dinosaurs? https://www.nhm.ac.uk/discover/dinosaur-extinction.html, usgs/encyclopaedia britannica: the non-avian dinosaurs went extinct at the end of the cretaceous period, at the cretaceous–paleogene (k–pg) boundary., www.amnh.org, www.britannica.com, www.nhm.ac.uk, www.nps.gov, www.usgs.gov

Work

  1. Pinnedblocks 26,083,617 to 26,083,917 to on Ethereum mainnet
  2. Answered70 of 70 agreed70 needed
    #592Cretaceousfrom en.wikipedia.org
    #1297Cretaceousfrom www.nps.gov
    #197Cretaceousfrom www.nhm.ac.uk
    #579Cretaceousfrom www.nhm.ac.uk
    #285Cretaceousfrom www.nhm.ac.uk
    65 more
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