Type
Zone
Age range
248.5–248 Ma

International Timescale

Early Triassic
Olenekian

Ammonite Zonation - Boreal

Olenikites pilaticus
Bajarunia eumphala
Anawasatchites tardus
248.52248.50248.48248.46248.44248.42248.40248.38248.36248.34248.32248.30248.28248.26248.24248.22248.20248.18248.16248.14248.12248.10248.08248.06248.04248.02248.00247.98

Macrostrat

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