David Tyler reports that “The earliest pterobranch reveals stasis”:
A modern-day pterobranch genus is Rhabdopleura. An informative description is provided here. Comparing the new fossil and Rhabdopleura leads to the exclamation: “You don’t look a day over 500 million years. You and Rhabdopleura could be sisters”. The detail has led to comments such as this from co-author Professor David Siveter: “Amazingly, it has exceptionally preserved soft tissues — including arms and tentacles used for feeding — giving unrivalled insight into the ancient biology of the group.” The significant finding is that the earliest fossil hemichordate zooid looks remarkably similar to Rhabdopleura.”Galeaplumosus abilus demonstrates stasis in pterobranch morphology, mode of coenecium construction, and probable feeding mechanism over 525 million years.”
The phenomenon of stasis is something Darwinists and neo-Darwinists have struggled with. Their theory predicts gradualism, but gradualism is not what the fossil record delivers. Darwinists have sought to evade the evidence by appealing to an impoverished fossil record, but we have reached the stage where this retort must be interpreted as a form of denialism.
More.
[Note: correction from earlier today in 2nd paragraph.]