Title: Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain
First published: 1986
Subjects: Fossil Priapulida, Fossil Worms, Paleontology, Priapulida, Fossil, Trace fossils, Worms, Fossil
Places: Spain, Utah, Zaragoza Region
Time periods: Cambrian
LC classification: QE701 .K33 no. 117, QE791 .K33 no. 117