“In its prime, #Cahokia was a prosperous city with a population similar to London’s. But this sprawling Native American metropolis from the #Mississippian culture vanished long before Europeans arrived in North America. What happened?”

https://www.youtube.com/watch?v=ruWuAas8T7Y

Two #NewSpecies of #Carboniferous Ctenacanth Sharks Identified in the United States https://www.sci.news/paleontology/carboniferous-ctenacanth-sharks-12667.html

#Sharks in the dark: Paleontological resource inventory reveals multiple successive #Mississippian Subperiod cartilaginous #fish (#Chondrichthyes) assemblages within #MammothCave National Park https://escholarship.org/uc/item/9rz2v701

"The two new species of ctenacanth sharks, Troglocladodus trimblei and Glikmanius careforum, would have hunted the ancient near-shore habitats over 325 million years ago."

#NewSpecies of Ancient #Shark Identified Through #Fossil Research at Mammoth Cave National Park https://www.nps.gov/maca/learn/news/new-species-of-ancient-shark-identified-through-fossil-research-at-mammoth-cave-national-park.htm

Janassid #petalodonts from the middle #Mississippian Ste. Genevieve Formation, #MammothCave National Park, #Kentucky, USA https://www.tandfonline.com/doi/abs/10.1080/08912963.2023.2231955

"#Strigilodus tollesonae may have lived like a modern skate, feeding on #snails, #bivalves, soft bodied #worms, and smaller #fish."