Organic Remains from Cambrian Rocks of Bray
نویسندگان
چکیده
منابع مشابه
The Cambrian Explosion Remains an Enigma for Organic Evolution
According to the conventional evolutionary-uniformitarian time scale of Earth history, multicellular organisms first appeared in abundance about 550 million years ago, in the "Big Bang of Evolution," the Cambrian explosion. But (again, according to the conventional time scale) a handful of odd multicellular organisms existed before the astonishing explosion of new forms in the Cambrian. These o...
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Allison, C.W. and Awramik, S.M., 1989. Organic-walled microfossils from earliest Cambrian or latest Proterozoic Tindir Group rocks, northwest Canada. Precambrian Res., 43: 253-294. Uppermost Tindir Group limestones exposed in the headwaters of Tindir Creek, Yukon Territory, Canada, contain a diverse and abundant microbiota of mineralized and organic-walled microfossils. Preserved primarily in c...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1900
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800159941