TERRESTRIAL FAUNA AND FLORA OF THE INGERSOLL SHALE: AN UPPER CRETACEOUS KONSERVAT-LAGERSTÄTTE, EUTAW FORMATION, EASTERN ALABAMA
Three theropod feathers have been discovered in the deposit, with the size of the feathers suggesting an avian theropod or a small maniraptoran such as a dromaeosaur. Possible theropod eggshell fragments have also been discovered in association with the feathers. The most common fossils within this Lagerstätte are angiosperm leaves such as Manihotites georgiana, preserved as carbonized compressions. Most gymnosperm seeds and cones are found partially pyritized and preserved in three dimensions. Amber has been found with inclusions tentatively identified as fungal hyphae. Terrestrial arthropod fossils in the Ingersoll shale include insect wings, possibly neuropteran or ephemeropteran, and chelicerate and blattodean fragments. The spectacular preservation of fossils in this Lagerstätte may have been caused by rapid burial and salinity changes, via tidal pumping, within an estuarine environment.