How many geological periods start with P?

14 of the 90 geological periods in Icillion start with P, for example Paleozoic, Pleistocene and Permian.

What is the longest name among geological periods that start with P?

The longest is “Paleoproterozoic” and the shortest is “Permian”.

Science · lists

The full list of geological periods starting with P: 14 names, taken from the 90 answers to “Name a geological period, epoch or era” in Icillion.

P is the most common first letter in this list: 14 of the 90 geological periods (16%).
Shortest: “Permian”. Longest: “Paleoproterozoic”.
1 can be spelled more than one way, and all the spellings count.

How many geological periods start with P?: 14 of the 90 geological periods in Icillion start with P, for example Paleozoic, Pleistocene and Permian.
What is the longest name among geological periods that start with P?: The longest is “Paleoproterozoic” and the shortest is “Permian”.

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