Undetermined undetermined
Brachytrematidae? gen. and sp. indet. Plate 8: fig. 5 Material. 1 specimen, Saal, SNSB-BSPG 2016 XXI 1781. Description. Shell turbiniform, 29 mm high, only partly preserved; whorls convex with numerous spiral cords and widely spaced axial ribs; first recognizable sculpture consists of edge directly above abapical suture; several weak spiral cords and axial ribs between edge and abapical suture; in the course of ontogeny, a spiral cord above edge and a weakly tubercular spiral cord appears between both; several spiral cords between edge and abapical suture; axial ribs become bulging and form rounded nodes at intersections with edge and several spiral cords on both sides of edge; adapical end of ribs thickened, node-like; some axial ribs thickened, varix-like; faint spiral lirae (that cannot be seen in detail due to preservation) between adapical suture and edge; spiral cord at border to base nodular; base slightly convex, with remains of spiral cords but shell largely chipped off so that only steinkern is exposed there.
Institutions
- Bayerische Staatssammlung für Paläontologie und Geologie (DE)
- Freie Universität Berlin (DE)
- Ludwig-Maximilians-Universität München (DE)
Publication Details
- Journal
- Zenodo (CERN European Organization for Nuclear Research)
- Published
- 2024-12-11
- DOI
- https://doi.org/10.5281/zenodo.14395441
- Primary Topic
- Calcium Carbonate Crystallization and Inhibition
- Type
- article
- Field-Weighted Citation Impact
- 0.00