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Mark McMenamin

kraken
Photo: Ichthyosaur vertebra, Liassic Germany, by G. Bechly.

Fossil Friday: Triassic Kraken Hypothesis Provoked Scornful Darwinist Revenge

Instead of a reasonable and fair scientific debate, McMenamin’s hypothesis has been ridiculed by other scientists and science journalists. Read More ›
Spriggina
Photo: Spriggina, by Daderot, CC0, via Wikimedia Commons.

Was Spriggina an Evolutionary Ancestor of Arthropods?

For those wedded to an evolutionary interpretation of life’s history, the fossil and genetic evidence leave the origin of arthropods a major mystery.  Read More ›
Tribrachidium
Photo: Tribrachidium, by https://upload.wikimedia.org/wikipedia/commons/a/a3/Tribrachidium_heraldicum_34.jpg.

Unknown Biology of Trilobozoa

Not much is known about the anatomy, biology, and ecology of the enigmatic trilobozoans. Read More ›
Tribrachidium
Photo: Tribrachidium, by Masahiro miyasaka, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

Uncertain Affinities of Trilobozoa

That the same fossils can be attributed to at least six different phyla of marine invertebrates as well as terrestrial fungi really should give reason to pause. Read More ›
Ventogyrus
Photo: Ventogyrus, by Retallack, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

Examining Potential Other Trilobozoans

Last but not least, there is this gem: In 1986 strange mushroom-shaped deep-sea animals were collected offshore South Australia. Read More ›
Kimberella quadrata
Kimberella quadrata
Image: Kimberella quadrata, by MUSE / CC BY-SA (https://creativecommons.org/licenses/by-sa/3.0).

Kimberella — A Checkered History

John Kimber collected the first fossils of this organism and died tragically at age 38 during an expedition in South Australia in 1964. Read More ›

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