Smithian and Spathian (Early Triassic) conodonts from Oman and Croatia and their bathymetry revealed

Chen Y, Joachimski M, Richoz S, Krystyn L, Aljinović D, Smirčić D, Kolar-Jurkovšek T, Lai X, Zhang Z (2021)


Publication Type: Journal article

Publication year: 2021

Journal

Pages Range: 103362

Article Number: 103362

DOI: 10.1016/j.gloplacha.2020.103362

Abstract

Conodont ecology of the Early Triassic Smithian–Spathian transition is still poorly understood. Here we use oxygen isotope ratios of monogeneric conodonts from Omani samples to reveal the differences of oxygen isotopic composition between different taxa. Oxygen isotope analyses from Oman reveal that Neogondolella inhabited a deeper part of the water column relative to neospathodids and Icriospathodus. This indicates that species of Neogondolella lived in an environment ca. 1.7 °C cooler than where neospathodids lived. The investigation of conodonts from these Smithian and Spathian sections has also enabled the first recovery of some rarely reported species (e.g., Icriospathodus zaksi, Paullella omanensis sp. nov. Chen and Gladigondolella laii sp. nov. Chen) from Oman. Paullella omanensis sp. nov. was further recovered from Plavno, Croatia, indicating a large geographic distribution, and its value for biostratigraphic correlations. The discovery of these species in both Oman and Croatia expands their geographical distribution.

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APA:

Chen, Y., Joachimski, M., Richoz, S., Krystyn, L., Aljinović, D., Smirčić, D.,... Zhang, Z. (2021). Smithian and Spathian (Early Triassic) conodonts from Oman and Croatia and their bathymetry revealed. Global and Planetary Change, 103362. https://dx.doi.org/10.1016/j.gloplacha.2020.103362

MLA:

Chen, Yanlong, et al. "Smithian and Spathian (Early Triassic) conodonts from Oman and Croatia and their bathymetry revealed." Global and Planetary Change (2021): 103362.

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