The Middle Cambrian (also known as Albertan, Acadian, St. David's, or Saint David's) is the second of three geological epochs of the Cambrian period. It spans the time between 513 ± 2 Ma and 501 ± 2 Ma (million years ago). The strange organisms of the Burgess Shale fossil site lived during this epoch. The Middle Cambrian is divided into two unnamed ICS stages.

See alsoEdit

• List of fossil sites (with link directory)

References Edit

• GeoWhen Database - Middle Cambrian

Cambrian period
Early Cambrian	Middle Cambrian	Furongian
Stage 1 | Stage 2	Stage 3 | Stage 4 | Stage 5 Stage 6 | Stage 7	Paibian | Stage 9 Stage 10

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