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Mamsetia
''Mamsetia manunis'' is an extinct cnidarian from the late Ediacaran. Estimated to be about 565 million years old, ''M. manunis'' is identified as a cnidarian polyp, and represents some of the earliest known evidence for muscle tissue in an animal. Its fossil was discovered in 2014 from Newfoundland in eastern Canada, and was formally described in 2024 as a staurozoan based on examination of its overall morphology and structure. Discovery and name The now-holotype fossil of ''Mamsetia'' was originally the paratype fossil for ''Haootia'' from the Trepassey Formation of Green Island, Bonavista Peninsula in Newfoundland. However, with the publication of a new paper in 2024 placing ''Haootia'' as a staurozoan, it was discovered that the paratype had enough differences in its morphology to that of ''Haootia'' to erect a new genus. The generic name ''Mamsetia'' is derived from the Beothuk word ''Mamset'', meaning "living". The specific name ''manunis'' is derived from the Beothu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trepassey Formation
The Trepassey Formation is a Formation (geology), geologic formation that crops out in Newfoundland, which consists of gray sandstones and tuffaceous rocks. It preserves fossils dating back to the Ediacaran Period (geology), period. Paleobiota Like the other overlying and underlying formations, the Trepassey Formation represents a rare deep-marine paleoenviroment, situated on a slope, which was home to various sessile forms, like the petalonamids Fractofusus and Trepassia, and even rare examples of life, like the staurozoan cnidarian Mamsetia, previously the paratype of Haootia. Petalonamae Cnidaria ''incertae sedis'' Ivesheadiomorphs Ichnogenera See also * List of fossiliferous stratigraphic units in Newfoundland and Labrador References * Ediacaran Newfoundland and Labrador Geologic formations of Newfoundland and Labrador Sandstone formations of Canada Shale formations of Canada Tuff formations of Canada {{Newfoundland-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
