Hay, guys, let me know if I got the genus and species wrong...>>Sea shells emerge from a hundred million years burial in the Kiamichi shale on the west side of Fort Worth, Texas. The star-patterned fossil is an echinoid (Hemiaster whitei), a relative of modern sea urchins. The ribbed shell is a bivalve shellfish, or pelecypod (Lima wacoensis). These animals lived on or in the seafloor in the mid-Cretaceous period, soon after the dinosaurs left their tracks at Dinosaur Valley State Park (Texas).The Kiamichi shale is a thin (~2-5m) formation of soft, gray mudrock interbedded with limestone. Because its easily eroded, it is difficult to findappearing mostly in bluffs of the Clear Fork of the Trinity River. Construction sites make the best exposuresthese fossils, and hundreds more, were found on 3 lots of a small housing development. The site has since been covered in Bermuda grass turf and Pavestone, and the magnificent abundance of Cretaceous life lies hidden once more.