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A New Theory Emerges for Where Some Fish Became 4-limbed Creatures

Published: December 28, 2011.
By University of Oregon

A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This theorized image of such a drastic adaptation to changing environmental conditions, however, may, itself, be evolving into a new picture.

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Fish, Soils, Transitional, Time, Retallack, Fossils, Floodplains, Years, Woodland, Romer, Ponds, Necks, Million, Limbs, Hypothesis, Humid, History, Found, Fossil, Drying, Distant, Deserts, Desert, Ancestors, Ago, …

Cluster Centroids (Superclass Keywords)

Daeschler, Fish, Devonian, Laccognathus, Downs, Romer, Fossils, Tiktaalik, Bergmanni, Floodplains, Drexel, Fishes, Arctic, Retallack, Transitional, Thomson, Placoderm, Tendons, Holoptychius, Soils, Fossil, Species, Embryi, History, Roseae, Giorgio, Garfish, Ticino, Needlefish, Half-Meter-Long, Fortunate, Saurichthys, Deserts, Monte, Associate, Drying, Maxwell, Long, Arts, Predatory, Doubling, Owe, Humid, Ago, Eels, …

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Related »


New Fossil Species from a Fish-eat-fish World When Limbed Animals Evolved
By Drexel University
Dusting for Prints from a Fossil Fish to Understand Evolutionary Change
By Drexel University
PHILADELPHIA (March 27, 2013) -- In 370 million-year-old red sandstone deposits in a highway roadcut, scientists have discovered a new species of armored fish in north central Pennsylvania. …

New Species of Ancient Predatory Fish Discovered
By Academy of Natural Sciences

Exceptional Fossil Fish Reveals New Evolutionary Mechanism for Body Elongation
By University of Zurich
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