"Giant sea creature hints at early arthropod evolution" Topic
4 Posts
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Tango01 | 12 Mar 2015 9:49 p.m. PST |
"Newly discovered fossils of a giant, extinct sea creature show it had modified legs, gills on its back, and a filter system for feeding -- providing key evidence about the early evolution of arthropods. The new animal, named Aegirocassis benmoulae in honor of its discoverer, Mohamed Ben Moula, attained a size of at least seven feet, ranking it among the biggest arthropods that ever lived. It was found in southeastern Morocco and dates back some 480 million years. "Aegirocassis is a truly remarkable looking creature," said Yale University paleontologist Derek Briggs, co-author of a Nature paper describing the animal. "We were excited to discover that it shows features that have not been observed in older Cambrian anomalocaridids -- not one but two sets of swimming flaps along the trunk, representing a stage in the evolution of the two-branched limb, characteristic of modern arthropods such as shrimps."…" Full article here link Amicalement Armand |
John Treadaway | 13 Mar 2015 2:08 a.m. PST |
Jeezaloo that's ghastly John T |
zippyfusenet | 13 Mar 2015 5:01 a.m. PST |
We'll need a barrel of cocktail sauce. |
Tango01 | 13 Mar 2015 10:13 a.m. PST |
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