Ultrastructural studies on graptolites /
Urbanek, Adam.
Ultrastructural studies on graptolites / Adam Urbanek and Kenneth M. Towe. - Washington : Smithsonian Institution Press, 1974. - 2 v.: ill. ; 27 cm. - Smithsonian contributions to paleobiology n.20 .
Includes bibliographies.
1. The periderm and its derivatives in the Dendroidea and in Mastigograptus.--2. The periderm and its derivatives in the Graptoloidea.
Graptolites.
Paleontology--Ordovician.
Ultrastructural studies on graptolites / Adam Urbanek and Kenneth M. Towe. - Washington : Smithsonian Institution Press, 1974. - 2 v.: ill. ; 27 cm. - Smithsonian contributions to paleobiology n.20 .
Includes bibliographies.
1. The periderm and its derivatives in the Dendroidea and in Mastigograptus.--2. The periderm and its derivatives in the Graptoloidea.
Graptolites.
Paleontology--Ordovician.