Numerical idiocy, or What's 33% between friends?

Normally I respect Wired, but this is stupid.

In the article with the really long title, 2-Billion-Year-Old Fossils May Be Earliest Known Multicellular Life, Brandon Keim mentions Grypania spiralis, the oldest known "truly multicellular organism". Then he says that the newly discovered fossil organism lived at "roughly the same time". Apparently Brandon thinks that 1.4 billion years and 2.1 billion years are roughly the same. That makes Danny Devito roughly the same height as Yao Ming. How could he write that?