title: Tentaculites: evidence for a brachiopod affinity?
abstract: Transmission electron microscope studies of fractured surfaces reveal that the shells of Tentaculites are constructed of calcite with a ridge and groove structure and cross-bladed fabric heretofore unique to some articulate brachiopods. A possible affinity with brachiopods or phoronids is suggested for Tentaculites.
authors.forename: K M
authors.initials: KM
authors.lastname: Towe