FREE: Ancient Trilobite

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10 PIcs
20 Facts.....

Trilobites are extinct arthropods… distant relatives of modern lobsters, horseshoe crabs and spiders.
Trilobites existed for approximately 300 million years.
They lived from the Lower Cambrian Period (521 million years ago) to the end of the Permian (240 million years ago.)
Their emergence and extinction bookend the Paleozoic Age.
Trilobites are named not for their head (cephalon), thorax and pygidium, but rather for the three axial lobes that divide their body length-wise.
Their fossilized remains have been found on every continent on earth.
Trilobites ranged in size from 1cm to over 70 cm.
There are over 20,000 scientifically recognized trilobite species.

Some trilobite fossils show evidence of soft appendages used for feeding and locomotion.
Famous “soft-bodied” trilobite localities include The Burgess Shale in British Columbia, The Emu Bay Shale in South Australia and The Chengjaing Formation in China.
It is believed that while trilobites lived mostly in offshore marine environments, some may also have existed in fresh water.
Some trilobite fossils show signs of predation.
Collecting trilobites has a long history… some have been found in human burial mounds dating back more than 50,000 years.
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