Tag: Precambrian
Phylogenetic Conflict Is Common and the “Hierarchy” Is Far from “Perfect”
It’s simply false for Dawkins to claim that when you compare genes of different animals, they “fall on a perfectly hierarchy — a perfect family tree.”
Paleontologist Buries Another Proposed Cambrian Precursor
Günter Bechly explains why the Precambrian fossil Namacalathus fails as a transitional precursor to the Cambrian explosion.
Scientific Paper Reaffirms New Genes Required for Cambrian Explosion
The notion that many genes would be required for the Cambrian explosion may seem unsurprising — what is surprising is that anyone would challenge the idea.
Kimberella and Controversial Relationships — A Chronological Synopsis, Continued
One researchers has preferred to classify Kimberella among the Ediacaran “fossil problematica.”
Kimberella — Interpreting the Fossils
One of the few features that are uncontroversial is the body size: The fossils measure usually 1-5 cm in length.