rangeomorph
Any organism of the clade Rangeomorpha, Precambrian (Ediacaran) sessile organisms resembling ferns, possibly descended from sponges and among the oldest known complex lifeforms.
Noun
- Any organism of the clade Rangeomorpha, Precambrian (Ediacaran) sessile organisms resembling ferns, possibly descended from sponges and among the oldest known complex lifeforms.
- Previous comparisons of rangeomorphs with cnidarians or ctenophores now seem unlikely. The fact that both sides of the rangeomorph structure are essentially identical, is not consistent with the rangeomorph frondlet...
- Although the possibility that they were passive “mattresses” holding symbiotic algae is plausible for the shallow-marine specimens of Australia, the oldest Ediacarans are the branching, frond-shaped rangeomorphs from...
- Rangeomorphs became extinct at the end of the Ediacaran, at or before 541 Ma,[…]. - 2020, Michael J. Benton, editor, Cowen's History of Life, 6th edition, Wiley Blackwell, page 53:
Origin
From translingual Rangea + -o- + -morph.