Herrera, Fabiany; Hotton, Carol L.; Smith, Selena Y.; Lopera, Paula A.; Neander, April I.; Wittry, Jack; Zheng, Yuke; Heck, Philipp R.; Crane, Peter R.; D’Antonio, Michael P.
(2023)
More than 20,000 siderite concretions from the Mazon Creek area of northern Illinois, United States are housed in the paleobotanical collections of the Field Museum. A large proportion contain fossil plants of Middle ...