Aratidecthidae
Aeschronectida is an extinct order (biology), order of mantis shrimp-like crustaceans which lived in the Mississippian age, Mississippian subperiod in what is now Montana. They exclusively lived in the Carboniferous, or the age of amphibians. They have been found mostly in the U.S. and in the British Isles, in 1979 species were found in the Madera Group, Madera Formation in New Mexico. Aeschronectida was first identified appearing in Continental Europe in around 2014. While sharing similar characteristics to Mantis shrimp, Stomatopoda, they lack certain physical characteristics of that taxon. The first species of Aeschronectida is accredited to Frederick R. Schram. They diverge substantially from typical hoplocaridan morphology by having more unmodified thoracopods. It's theorized that these thoracopods evolved to become more specialized, making them potential ancestors to Mantis shrimp, Stomatopoda. Morphology Aeschronectida have typical characteristics of hoplocarids including ...
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