DPG is a comprehensive underwater photography website and community for underwater photographers. Learn underwater photography techniques for popular digital cameras and specialized professional underwater equipment (wide angle, macro, super macro, lighting and work flow). Read latest news, explore travel destinations for underwater photography. Galleries of professional and amateur underwater photography including wrecks, coral reefs, undersea creatures, fashion and surfing photography.
Dive Photo Guide


There Once Was a Shark That Ate an Amphibian That Ate a Fish ...
By Wendy Heller, November 29, 2007 @ 04:05 AM (EST)
Source: Livescience.com

A fossilized shark that swallowed a crocodile-like amphibian that, in turn, had gobbled up a fish has now been unearthed.

This exceptional find marks the first time scientists have found direct evidence of such a complex, extinct food chain.

In the past, researchers had uncovered evidence of what past species ate based on the fossilized contents of their guts or droppings. For instance, fossilized dung, or "coprolites," have revealed some dinosaurs ate grass.

Prey, especially in the gut or intestines of fossil organisms, are very rarely preserved," said paleobiologist Jurgen Kriwet at Humboldt University of Berlin in Germany. At most, only a single victim or perhaps several of the same species are preserved, he added.

By accident, Kriwet and his colleagues discovered the new shark fossil in a museum collection. These exceptionally preserved remains are roughly 290 million years old, pre-dating the emergence of the dinosaurs.



Seacam Housing for Nikon Z9
Canon EOS R6 Mark II
Backscatter Mini Flash MF-2
Ikelite Housing for OM System OM-1
Nauticam NA-R7
Be the first to add a comment to this article.
You must be logged in to comment.
Support Our Sponsors
Travel with us

Featured Photographer

Follow Us