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.

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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
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Zenodo (CERN European Organization for Nuclear Research)
Calcium Carbonate Crystallization and Inhibition
article

Undetermined undetermined

article en

Abstract

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.

Zenodo (CERN European Organization for Nuclear Research)
Bayerische Staatssammlung für Paläontologie und Geologie (DE), Freie Universität Berlin (DE), Ludwig-Maximilians-Universität München (DE)
Life in Land
Openalex Percentile: Top 78%
Calcium Carbonate Crystallization and Inhibition
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