Paleontologists have estimated that all known fossils species represent less than two percent of past life on earth.
(Paleontologists; have estimated; that all known fossils species represent less than two percent of past life on earth) Context(Paleontologists have estimated,List([0, 30))):(all known fossils species; represent; less than two percent of past life on earth)
Paleontologists have estimated,List([0, 30))
Paleontologists all known fossils species
have estimated represent
that all known fossils species represent less than two percent of past life on earth
less than two percent of past life on earth