Between fish and amphibian

Article Abstract:

The morphological features of the newly discovered genus Eliginerpeton along with Obruchevichthys help understand the evolution of terrestrial amphibians from their fish ancestors. Elginerpeton's skull and jaw bones exhibit both fish and amphibian features. These fish fossils show that transformation between osteolepiform fish and land vertebrates occurs through radiations in an aquatic environment.

Testimony, Fishes, Evolution (Biology), Amphibians

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The earliest known fully quadrupedal sirenian

Article Abstract:

Research describing Eocene fossils discovered in Jamaica is presented, with focus on the characteristics of an entire sirenian skeleton. Particular attention is given to the animal's motion capabilities, on land, as well as in water.

Natural history, Jamaica, Sirenia, Sirenians

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Chinese salamanders tell tales

Article Abstract:

Preserved salamander skeletons from a 150-million year old pond deposit in China may help in evolutionary links and geographical distribution issues.

Salamanders

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