HotmailAncient spider guts revealed in 3-D
Scientists used digital wizardry to scan bug through its amber grave
 Univ. of Manchester, Zootaxa High-resolution scans of the ancient spider result in 3-D images from different angles: top of the spider (a), belly view (b), from the front (c) and back end (d) of the spider, and side views (e and f). |
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Digital wizardry has allowed scientists to see the insides of a 53-million-year-old fossilized spider in 3-D.
The male spider is about the size of a pinhead (or a stack of three salt grains) and lived during the early Eocene epoch, from about 55 million to nearly 34 million years ago.
It represents a new genus and species dubbed Cenotextricella simoni. It's also the earliest fossil species of a family of micro-spiders called Micropholcommatids from Australia, New Guinea, New Caledonia, New Zealand and Chile.
The fossil was found preserved in amber in the Paris Basin in France.
“Amber provides a unique window into past forest ecosystems," said lead author David Penney, a paleo-arachnologist at the University of Manchester in England. "It retains an incredible amount of information, not just about the spiders themselves, but also about the environment in which they lived."
Normally, observing the minute features of an already tiny specimen would mean cracking into the amber, potentially destroying the sample.
Instead of physical dissection, Penney and his colleagues used Very High Resolution X-ray Computed Tomography to scan the bug through its amber grave.
The resulting 3-D reconstructions could be sectioned and viewed from various angles, essentially allowing for digital dissection of the spider specimen.
“This technique essentially generates full 3-D reconstructions of minute fossils and permits digital dissection of the specimen to reveal the preservation of internal organs," Penney said.
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