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Category:Ordovician first appearances

From Wikipedia, the free encyclopedia

This category includes biological taxa of rank more inclusive than genus that evolved during the Ordovician period of geologic time, between 485.4 and 443.8 million years ago, as well as genera and species that evolved during this time and persisted across multiple geological periods.

Subcategories

This category has the following 6 subcategories, out of 6 total.

E

Early Ordovician first appearances (2 C, 54 P)
Extant Ordovician first appearances (1 C, 26 P)

G

Ordovician genus first appearances (2 C, 3 P)

L

Late Ordovician first appearances (1 C, 34 P)

M

Middle Ordovician first appearances (4 C, 80 P)

S

Ordovician species first appearances (1 C)

Pages in category "Ordovician first appearances"

The following 63 pages are in this category, out of 63 total. This list may not reflect recent changes.

A

B

C

D

E

F

G

H

I

Ivoechiton

L

Liwiidae

M

O

P

R

S

T

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