Browsing by Author "Fedonkin, Mikhail A."

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Horodyskia williamsii new species, a Mesoproterozoic macrofossil from Western Australia

Grey, Kathleen; Yochelson, Ellis L.; Fedonkin, Mikhail A.; Martin, David McB (2010)

A new species of abundant macrofossil, previously described informally as a 'string of beads', is here assigned to the genus Horodyskia Yochelson and Fedonkin, 2000, and formally named Horodyskia williamsii. It is ...
Middle Proterozoic (1.5 Ga) Horodyskia moniliformis Yochelson and Fedonkin, the Oldest Known Tissue-Grade Colonial Eucaryote

Fedonkin, Mikhail A.; Yochelson, Ellis L. (2002)

“Problematic bedding-plane markings” discovered by the late R.J. Horodyski from the Appekunny Formation in Glacier National Park, Montana, and dated at approximately 1.5 giga-annum (Ga), were never formally named. We are ...
Paleobiology of Climactichnites, an Enigmatic Late Cambrian Fossil

Yochelson, Ellis L.; Fedonkin, Mikhail A. (1993)

Climactichnites wilsoni Logan, 1860, is redescribed from field investigations and specimens in various museums. Climactichnites youngi Todd, 1882, and C. fosteri Todd, 1882, are placed in synonymy. The ...

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