Hapsidophyllas is a rare Ediacaran rangeomorph fossil found at Mistaken Point, Newfoundland, Canada.

Currently, the Hapsidophyllas flexibilis holotype resides in its type locality in the Mistaken Point Ecological Reserve, and a cast of the specimen is on display at the Royal Ontario Museum in Toronto, Canada.

[1] However, a significant difference between the two is that the primary branches of Charnia are connected to a central tube that is absent or internal, while hapsidophyllid leaflets are attached to a visible stalk.

[3] Sedimentary studies show that Mistaken Point organisms, including Hapsidophyllas, lived on the deep seafloor below the photic zone.

Due to its excellent preservation, it is estimated that the Hapsidophyllas flexibilis laid semi-prone to the seafloor in its life.