Mark A. S. Mcmenamin – författare
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3 produkter
The Emergence of Animals
The Cambrian Breakthrough
Av Mark A. S. Mcmenamin, Dianna McMenamin
Häftad, 1990
437 kr
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The authors explore the late Precambrian and earliest Cambrian fossil record to explain the Cambrian phenomenon and discuss the possibility of a major turnover in marine ecology at the beginning of the Cambrian period or whether a new, improved type of animal appeared at this time. They support …
Hypersea
Life on Land
Av Mark A. S. Mcmenamin, Dianna McMenamin
Häftad, 1996
847 kr
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This text describes the evidence for how life moved from sea to land, beginning more than 400 million years ago, employing the concept of "Hypersea" which is the idea that the barren land surfaces of the Earth could only have been colonized by multicellular organisms working in concert.
The Garden of Ediacara
Discovering the First Complex Life
Häftad, 2000
663 kr
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During an expedition in Sonora, Mexico, paleontologist Mark A. S. McMenamin unearthed fossils of creatures dated at approximately 600 million years old-making them the oldest large body fossils ever discovered. These circular fossils, known as Ediacarans, seemed to defy explanation. Representatives …
