Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs)

被引：31

作者：

Barnosky, Anthony D. ^{[1
,2
,3
]}

Holmes, Michael ^{[1
,2
,3
]}

Kirchholtes, Renske ^{[1
,2
]}

Lindsey, Emily ^{[1
,2
]}

Maguire, Kaitlin C. ^{[4
]}

Poust, Ashley W. ^{[1
,2
]}

Stegner, M. Allison ^{[1
,2
,3
]}

Sunseri, Jun ^{[1
]}

Swartz, Brian ^{[1
,5
]}

Swift, Jillian ^{[1
]}

Villavicencio, Natalia A. ^{[1
,2
]}

Wogan, Guinevere O. U. ^{[1
,3
]}

机构：

[1] Univ Calif Berkeley, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Museum Paleontol, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Museum Vertebrate Zool, Berkeley, CA 94720 USA

[4] Univ Calif Merced, Merced, CA USA

[5] Stanford Univ, MAHB, Stanford, CA 94305 USA

来源：

ANTHROPOCENE REVIEW | 2014年 / 1卷 / 03期

关键词：

Anthropocene; biochronology; Holocene; land mammal ages; mammals; paleontology; ERA BEGAN THOUSANDS; PLEISTOCENE EXTINCTIONS; CLOVIS; QUATERNARY; MEGAFAUNA; HUMANS; SITE; HORSES; ISLAND;

D O I：

10.1177/2053019614547433

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Human impacts have left and are leaving distinctive imprints in the geological record. Here we show that in North America, the human-caused changes evident in the mammalian fossil record since c. 14,000 years ago are as pronounced as earlier faunal changes that subdivide Cenozoic epochs into the North American Land Mammal Ages (NALMAs). Accordingly, we define two new North American Land Mammal Ages, the Santarosean and the Saintagustinean, which subdivide Holocene time and complete a biochronologic system that has proven extremely useful in dating terrestrial deposits and in revealing major features of faunal change through the past 66 million years. The new NALMAs highlight human-induced changes to the Earth system, and inform the debate on whether or not defining an Anthropocene epoch is justified, and if so, when it began.

引用

页码：225 / 242

页数：18

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