Silicified Middle Ordovician trilobites
Subtitle: Remopleurididae, Trinucleidae, Raphiophoridae, Endymioniidae
Series: Bulletin of the Museum of Comparative Zoology at Harvard College -- v. 121, no. 8
Publisher: The Museum
Published: 1959
Place of publication: Cambridge
Language: eng
Number of pages: 496
Subjects: Ordovician Geologic Period; Trilobites; Paleontology
Notes: Includes bibliographical references (pages 492-496).