Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite.

Journal article


Publication Details

Author(s): Rigo M, Joachimski M
Journal: Acta Palaeontologica Polonica
Publisher: Polska Akademia Nauk, Instytut Paleobiologi (Polish Academy of Sciences, Institue of Paleobiology)
Publication year: 2010
Volume: 55
Pages range: 471-478
ISSN: 0567-7920
eISSN: 1732-2421


Abstract


The oxygen isotopic composition of conodont apatite derived from the Late Triassic (Carnian to lower Norian), Pignola 2 and Sasso di Castalda sections in the Lagonegro Basin (Southern Apennines, Italy) was studied in order to constrain the habitat of Late Triassic conodont animals. Oxygen isotope ratios of conodonts range from 18.5 to 20.8‰ V-SMOW, which translate to palaeotemperatures ranging from 22 to 31°C, assuming a δ 18O of Triassic subtropical sea water of -0.12‰ V-SMOW. These warm temperatures, which are well comparable to those of modern subtropical-tropical oceans, along with the body features of the conodont animal suggest that conodont 1 δ8O values reflect surface water temperatures, that the studied conodont taxa lived in near-surface waters, and that δ 18O values of Late Triassic conodonts can be used for palaeoclimatic reconstructions.



FAU Authors / FAU Editors

Joachimski, Michael Prof. Dr.
Lehrstuhl für Geologie (Exogene Dynamik)


External institutions
University of Padua


How to cite

APA:
Rigo, M., & Joachimski, M. (2010). Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite. Acta Palaeontologica Polonica, 55, 471-478. https://dx.doi.org/10.4202/app.2009.0100

MLA:
Rigo, Manuel, and Michael Joachimski. "Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite." Acta Palaeontologica Polonica 55 (2010): 471-478.

BibTeX: 

Last updated on 2018-09-08 at 15:08