Author: Günter Bechly | Page 20 | Science and Culture Today

Kimberella quadrata with associated scratch marks

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Author
Günter Bechly

Date
September 14, 2020

Categories
Evolution
Tagged
, Adolf Seilacher, Cambrian Explosion, Cambrian News, Ediacaran biota, Ediacaran organisms, feeding apparatus, grazing, Kimberella, Kimberella series, Kimberichnus, Kimberichnus teruzzii, locomotion, microbial mats, Russia, South Australia, teeth, trace fossils, Tübingen University, White Sea}

Kimberella — Controversial Scratch Marks

_{Günter Bechly
September 14, 2020

Evolution

5}

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." Read More ›

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Author
Günter Bechly

Date
September 12, 2020

Categories
Evolution
Tagged
, burial, Cambrian News, digestive system, Ediacaran organisms, evolution, feeding apparatus, foot, fossils, Kimberella, Kimberella series, mantle, Mikhail Fedonkin, mollusks, monoplacophorans, muscles, Ordovician Period, Parvancorina, proboscis, shells, teeth}

Reconstructing Kimberella — The Disputed Anatomy in Detail

_{Günter Bechly
September 12, 2020

Evolution

18}

Fossils often leave much room for very different interpretations of relatively poor evidence. Read More ›

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post

Author
Günter Bechly

Date
September 11, 2020

Categories
Evolution
Tagged
, comb jelly, Ediacaran biota, fossils, gonads, jellyfish, Kimberella, Kimberella series, limpets, mantle, medusoid, molluscan radula, pharynx, proboscis, stylets, teeth, White Sea}

Kimberella — Four Phases of Interpretation

_{Günter Bechly
September 11, 2020

Evolution

6}

In the quite checkered history of the detailed reconstruction of Kimberella, we can distinguish four distinct successive phases. Read More ›

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Author
Günter Bechly

Date
September 10, 2020

Categories
Evolution
Tagged
, bilaterian animals, body size, Cambrian Explosion, Cambrian News, Ediacaran organisms, fossil record, interpretation, Kimberella, Kimberella series, Metamorphosis, microbial mats, motility, Precambrian, sexual dimorphism, tissues, trace fossils}

Kimberella — Interpreting the Fossils

_{Günter Bechly
September 10, 2020

Evolution

2}

One of the few features that are uncontroversial is the body size: The fossils measure usually 1-5 cm in length. Read More ›

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Author
Günter Bechly

Date
September 7, 2020

Categories
Evolution
Paleontology
Tagged
, animals, bilaterians, Burgess Shale, Cambrian Explosion, Cambrian News, Chengjiang, Ediacaran Period, feeding traces, fossil record, Kimberella, Kimberella series, limpets, Maotianshan Shales, motility, Precambrian strata, taphonomy, trace fossils}

Kimberella — Conflicting Evidence from Taphonomy

_{Günter Bechly
September 7, 2020

Evolution, Paleontology

3}

The fossilization of Kimberella specimens was most likely based on rapid burial with sand during storm events. Read More ›

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Author
Günter Bechly

Date
September 6, 2020

Categories
Ecology
Evolution
Tagged
, Cambrian Explosion, Cambrian News, Dickinsonia, ecosystem, Ediacaran biota, feeding traces, fossil record, jellyfish, Kimberella, Kimberella series}

Conflicting Views about Kimberella’s Ecology

_{Günter Bechly
September 6, 2020

Ecology, Evolution

2}

Based on the same fossil evidence, there is obviously much room for speculation and quite different opinions. Read More ›

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Author
Günter Bechly

Date
September 4, 2020

Categories
Evolution
Tagged
, Cambrian Explosion, Cambrian News, Dickinsonia, Ediacaran biota, Ediacaran Period, holotype, jellyfish, Kimberella, Kimberella quadrata, Kimberella series, Kimberellomorpha, Mark McMenamin, mollusks, Precambrian strata, Tribrachidium, White Sea, Zimnie Gory}

Kimberella — A Checkered History

_{Günter Bechly
September 4, 2020

Evolution

7}

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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Author
Günter Bechly

Date
September 3, 2020

Categories
Evolution
Tagged
, animal phyla, Bilateria, Cambrian Explosion, Cambrian News, Darwin's Doubt, Ediacaran biota, Ediacaran Period, Eumetazoa, evidence, evolution, evolutionary biology, intelligent design, jellyfish, Kimberella, Kimberella series, Lophotrochozoa, Metazoa, molecular clock, mollusks, Nephrozoa, Protostomia}

Was Kimberella a Precambrian Mollusk?

_{Günter Bechly
September 3, 2020

Evolution

3}

If identified as an animal, it would “predate the Cambrian explosion of bilaterian animal phyla as a kind of ‘advance guard.’” Read More ›

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post

Author
Günter Bechly

Date
July 10, 2020

Categories
Evolution
Tagged
, algae, bilateral symmetry, brachiopods, Bryozoa, Cambrian Explosion, Ediacaran biota, Ediacaran Small Shelly Fauna, lophophorates, Middle Cambrian, Namacalathus, Namacalathus hermanastes, Paleobiology Database, phoronids, protists, sponges, Utah}

Namacalathus, Alleged Ediacaran “Animal,” Fails to Refute Abrupt Cambrian Explosion

_{Günter Bechly
July 10, 2020

Evolution

13}

It could be anything, from a coelenterate-grade or sponge-grade organism to even a protist or an alga. Read More ›

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post

Author
Günter Bechly

Date
July 9, 2020

Categories
Evolution
Tagged
, animals, Cambrian Explosion, Cambrian News, Cambrian Small Shelly Fauna, Cloudina, Dickinsonia, Ediacaran animals, Ediacaran era, Ediacaran Small Shelly Fauna, Ediacaran-Cambrian boundary, fossil record, lophotrochozoans, Nama Group, Namacalathus, Namacalathus hermanastes, Namapoikia, Namibia, National Geographic, paleontology, Proceedings of the Royal Society of London, University of Edinburgh, University of Toronto}

Namacalathus, an Ediacaran Lophophorate Animal?

_{Günter Bechly
July 9, 2020

Evolution

9}

I have been writing a series of articles on alleged Ediacaran animals that have been postulated as precursors of the Cambrian explosion. Read More ›