miacis cognitus造句

• Analysis of skeletal morphology suggests it is most closely related to another taxon previously attributed to Miacidae, " Miacis cognitus ", and the well known New World amphicyonid, " Daphoenus ".
• :However, although we know of at least one species of Genus Miacis, " Miacis cognitus ", we cannot be sure if this particular species was the Most Recent Common Ancestor of the carnivores, or whether it was a ( probably similar ) sister species, of which fossils may not have yet been ( and may never be ) found-only a small fraction of all extinct species, with or without descendents, have been found as fossils, as fossilisation is a very rare event.