The oldest deep-boring bivalves? Evidence from the Silurian of Gotland (Sweden)

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Claußen A, Munnecke A, Wilson MA, Oswald I
Zeitschrift: Facies
Jahr der Veröffentlichung: 2019
Band: 65
Heftnummer: 3
ISSN: 0172-9179


Abstract

Compared to modern counterparts, bioerosion is rare in Paleozoic reefs, especially macro-bioerosion. The unique and enigmatic Silurian reefs from Gotland (Sweden), composed of bryozoans and microbial laminates, show evidence of a large amount of bioerosion. The samples contain Trypanites trace fossils, as well as a large number of undescribed macroborings. Small articulated bivalve shells are preserved in some of these macroborings, identified from thin-sections. Three-dimensional images from micro-computed tomography (microCT) reveal an additional bivalve, which is occupying a bioerosion trace. This specimen is possibly contained in a different boring that can be classified as possibly clavate-shaped. Furthermore, evidence of nestling, such as a subsequent modification of the ichnofossils, the presence of bivalves that are much smaller than the trace, or the presence of additional specimens, is missing; therefore, it is most likely that the bivalves made the borings. This is evidence for the existence of deep-boring bivalves in the Silurian.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Claußen, Anna
Professur für Paläontologie (Schwerpunkt Faziesanalyse)
Munnecke, Axel Prof. Dr.
Naturwissenschaftliche Fakultät


Einrichtungen weiterer Autorinnen und Autoren

College of Wooster


Zitierweisen

APA:
Claußen, A., Munnecke, A., Wilson, M.A., & Oswald, I. (2019). The oldest deep-boring bivalves? Evidence from the Silurian of Gotland (Sweden). Facies, 65(3). https://dx.doi.org/10.1007/s10347-019-0570-7

MLA:
Claußen, Anna, et al. "The oldest deep-boring bivalves? Evidence from the Silurian of Gotland (Sweden)." Facies 65.3 (2019).

BibTeX: 

Zuletzt aktualisiert 2019-17-05 um 13:08