Category:Cambrian first appearances
This category includes biological taxa of rank more inclusive than genus that evolved during the Cambrian period of geologic time, between 541 and 485 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 11 subcategories, out of 11 total.
C
E
F
- Furongian first appearances (18 P)
H
- Hymenocarina (23 P)
M
O
- Orthida (12 P)
- Orthothecidae (4 P)
S
T
- Thylacocephala (8 P)
Pages in category "Cambrian first appearances"
The following 98 pages are in this category, out of 98 total. This list may not reflect recent changes.