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Systematics and convergent evolution of multiple reef-associated Jurassic and Cretaceous crabs (Decapoda, Brachyura)

We studied multiple true crabs (Brachyura) from primarily sponge and coral reefs that lived during the Jurassic and Cretaceous periods (201 to 66 million years ago). Both environments were important habitats for the evolution and biodiversity of crabs during the Late Jurassic epoch (164 to 145 million years ago).

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New Holotype of Fossil Shark for Paleontology Collection

On June 16, paleontologists published a scientific article describing a new fossil angel shark genus and species named Cretasquatina americana. Among those paleontologists is former University of Alabama curator of paleontology Dana Ehret. The team used two specimens from the paleontology collection of UA Museums’ Department of Museum Research and Collections.

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Mollusks and a crustacean from early Oligocene methane-seep deposits in the Talara Basin, northern Peru

Methane seeps are places on the ocean floor where methane escapes from the subsurface into the water column. Such seeps, also called cold seeps, can be found at different depths in the oceans today and in the past. They are essentially the cold equivalent of hydrothermal vents.

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