1.3 Billion years of acritarch history: An empirical morphospace approach

Precambrian Research - Tập 144 - Trang 52-68 - 2006
John Warren Huntley1, Shuhai Xiao1, Michał Kowalewski1
1Department of Geosciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA