collenia वाक्य

उदाहरण वाक्य

1. There are also microbial fossils of a cyanobacterium known as " collenia " in the rock; these formed 2000 million years ago.
2. Proterozoic stromatolite microfossils ( preserved by permineralization in silica ) include cyanobacteria and possibly some forms of the geologic record is " Collenia ".