Contribution
New trepostome bryozoan genus from the Estonian Kukersite
Ernst, Andrej
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 307 Heft 3 (2023), p. 249 - 259
49 références bibliographiques
publié: May 2, 2023
manuscrit accepté: Mar 6, 2023
manuscrit reçu: Jan 23, 2023
ArtNo. ESP155030703003, Prix: 29.00 €
Abstract
A new bryozoan genus with one new species is described from the Kukruse Stage (Sandbian, Ordovician) of Estonia: Toomipora kohtlaensis gen. nov., sp. nov. The new genus is placed in the Family Monticuliporidae (Trepostomata) and is characterized by the presence of biconvex cystiphragms and hemisepta-like projections in exozones. Function of these structures were apparently re-shaping and reducing of autozooecial living chamber space as well as strengthening of autozooecial wall. The described bryozoan developed encrusting and branched colonies with thin exozones.
Mots-clefs
Bryozoa • Trepostomata • taxonomy • morphology • Ordovician • Estonia