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limpets

Kimberella quadrata
Kimberella quadrata
Photo: Dorsal mold of Kimberella quadrata from the Ediacaran of Russia,
showing the cuticular dorsal shield with tubercular nodes and the tapered oral end; by Aleksey Nagovitsyn: Wikimedia, GNU FDL).

Kimberella and Controversial Relationships — A Chronological Synopsis

It is remarkable, indeed, how detailed a medusoid morphology was projected onto Kimberella fossils and later recognized as pure fantasy. Read More ›
Kimberella
Kimberella
Photo: Kimberella, via Wikimedia Commons.

Kimberella — Four Phases of Interpretation

In the quite checkered history of the detailed reconstruction of Kimberella, we can distinguish four distinct successive phases. Read More ›
Kimberella
Kimberella
Masahiro miyasaka / CC Photo: Kimberella fossil, BY-SA (https://creativecommons.org/licenses/by-sa/4.0)

Kimberella — Conflicting Evidence from Taphonomy

The fossilization of Kimberella specimens was most likely based on rapid burial with sand during storm events. Read More ›
DSC_0492
Photo: This fer-de-lance doesn't belong in a hotel, by Bernard DUPONT / CC BY-SA (https://creativecommons.org/licenses/by-sa/2.0).

The Fairy Tale World of an Evolution Textbook

Endothermy may have advantages over ectothermy, but I wouldn’t advise taking your chances by picking up a poisonous snake. Read More ›

Ants, Wildebeest, Penguins, and More: A Zoo of Animal Designs

Don’t kick sand in the face of a wildebeest by joking that it looks like it was made by a committee. It might flex its muscles and charge. Read More ›

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