A former teacher of mine was the late Adolf Seilacher, who was a leading authority on trace fossils and who for obvious reasons preferred to be called “Dolf.”
Fossils often leave much room for very different interpretations of relatively poor evidence.
One of the few features that are uncontroversial is the body size: The fossils measure usually 1-5 cm in length.
The authors discuss the mode of preservation of Ediacaran fossils, and they document taphonomical laboratory experiments.
For the first time it has been discovered that an organism from the Precambrian Ediacaran fauna may have survived into the Cambrian period.