Heirs of ancient enigmas. (Ediacara fauna research) (Brief Article) From: Science News | Date: July 18, 1992 | COPYRIGHT 1992 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information) Copyright information

Living organisms have populated the Earth for more than 3.5 billion years, but for most of that time they remained exceptionally small. Then sometime during the late Proterozoic era, about 580 million years ago, life got big. In rocks dating from this time, paleontologists have found a wide variety of large impressions left by a group of puzzling soft-bodied organisms called the Ediacara fauna, which later disappeared from the fossil record.

Scientists have long puzzled over the fate of the Ediacara: Did they leave relatives that evolved into animals seen in later periods ...

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