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Shales and silty shales of the ∼1800 million-year-old Changzhougou Formation (lowermost Changcheng Group) in the Pangjiapu Region of North China contain well-preserved, acritarchs. These microbial body fossils, although sphaeromorphs, have a size and fine-scale morphological complexity that would attribute them to the eukaryotic domain on the tree of life. Sphaeromorphs range in size from 62μm to...
The Paleoproterozoic Changzhougou Formation (Changcheng Group) of North China contains compression-like structures, millimeters to centimeters in diameter and about a millimeter thick that are circular, elliptical, elongate, and irregular in shape. These structures were interpreted to be carbonaceous compressions of megascopic eukaryotes by Zhu et al. (2000). Some of the compression-like structures...
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