PC_90_30_20  Mesozoic era

General information

Category

PC_90_30  Geological periods

Status

This code is part of the latest version of Uniclass. Properties and characteristics v1.3, October 2024

Contains

PC_90_30_20_10  Cretaceous period

Contains 2 current codes

PC_90_30_20_20  Jurassic period

Contains 3 current codes

PC_90_30_20_30  Triassic period

Contains 3 current codes

Other items in this category

PC_90_30_10  Cenozoic era

Contains 2 current codes

PC_90_30_30  Palaeozoic era

Contains 6 current codes

PC_90_30_40  Proterozoic era

PC_90_30_50  Archean era

Publication history

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