Blueflower Formation

The Blueflower Formation is a geologic formation in the Northwest Territories, and is a part of the Rackla Group. It preserves fossils dating back to the Ediacaran period.

Paleobiota

Unlike most other Ediacaran formations, the Blueflower Formation is unique in that is preserves shallow and deep-marine environments, and as it correlates with other Avalonian formations such as those in Newfoundland and Labrador, it allowed scientists to figure out whether the Ediacaran Biota started out in deep-marine environments before making their way into shallower waters. The forms that can be found across the formation are the familiar Petalonamae such as Charniodiscus, including juvenile petalonamids from the Lower Member, and from the Upper Member tubular forms such as Annulatubus, and the enigmatic Windermeria.

Genus	Species	Notes	Images
Windermeria	W. aitkeni	Elongated motile organism.

Genus	Species	Notes	Images
Charniodiscus	Charniodiscus sp.	Frondose organism.
Juvenile Fronds	Arborea ? Charniodiscus ? Trepassia ?	Juvenile frondose organisms, exact genus affinities unknown.
Pteridinium	Pteridinium sp.	Frondose organism.

Genus	Species	Notes	Images
Annulatubus	A. flexuosus	Tubular organism.
Aspidella	A. terrinovica	Discoid organism.
Cyclomedusa	Cyclomedusa sp.	Discoid organism.
Hiemalora	H. pleiomorphus	Discoid organism, possibly holdfasts of petalonamids.
Sekwia	S. excentria	Discoid organism.
Sekwitubulus	S. annularis	Tubular organism.

Genus	Species	Notes	Images
Beltanelliformis	B. brunsae	Cyanobacterial colony.

Genus	Species	Notes	Images
Archaeonassa	Archaeonassa isp.	Burrows.
Gordia	G. marina	Burrows.
Helminthoidichnites	Helminthoidichnites isp.	Burrows.
Helminthopsis	H. abeli H. irregularis Helminthopsis isp.	Burrows.
Planolites	P. monatanus	Burrows.
Torrowangea	Torrowangea isp.	Burrows.

Genus	Species	Notes	Images
problematicum	???	Curves and loops around, affinities unknown.