Treatise on Invertebrate Paleontology

Acanthograptus Amplexograptus apertural spines autothecae Balt biserial graptolites bithecae BOUČEK BULMAN Cephalodiscus chitinous cladia cladium clathria Climacograptus coenoecium colony common canal Copenhagen Decisions crossing canals Dendrograptus dendroid Dendroidea Dicellograptus dichograptid dichotomous Dicranograptus Dictyonema Didymograptus diplograptid type disc distal dorsal emendation family-group name fauna fusellar genera genus Glyptograptus grap graptid graptolite rhabdosome graptolites Graptolithina Graptolithus Graptoloidea graptus growth bands growth lines HALL Hartfell sh ICZN ICZN pend initial bud interthecal septum isograptid KOZLOWSKI L.Ord L.Sil lacinia LAPWORTH lateral branches lophophore M.Ord main stipe metasicula Monograptus morphology multiramous N.Am NICHOLSON nomen Ordovician origin Orthograptus pectocaulus pendent periderm portion PŘIBYL prosicula protheca proximal end Pterobranchia Rastrites reclined reticula rhab rhabdo Rhabdopleura rhabdosome RUEDEMANN S.Scot S.Swed scandent sicula Silurian species stage stipes stolon stolotheca structure subfamily synrhabdosome Tetragraptus thecae thecorhiza tion tissue Treatise Tremadoc Tremadocian tubular uniserial University usually ventral virgula WIMAN zooid zoological names