Kallidecthes richardsoni Marine Shrimp - Mazon Creek Fossil 03d2c319f27a57c561cccbcbb7bc93ff each piece is handcrafted using

each piece is handcrafted using very simple tools

Ocean Jasper

000 years ago with a few notable exceptions

Egg cases other than those of sharks from the Paleozoic are extremely rare in the fossil record

(King Lizard)

Kallidecthes richardsoni Marine Shrimp - Mazon Creek Fossil 03d2c319f27a57c561cccbcbb7bc93ff each piece is handcrafted usingMarine Estuarine Shrimp: Fossil shrimp were first reported from the Mazon Creek area around 1860, but prior to the opening of Pit 11 in the mid 1950s, the diversity was remarkably small. Now, they are divided into robust non marine and marine estuarine groups. These fossil arthropods are preserved in full body detail or as exoskeleton molts.