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

Chen, Yanlong ; Joachimski, Michael M. ; Richoz, Sylvain LU ; Krystyn, Leopold ; Aljinović, Dunja ; Smirčić, Duje ; Kolar-Jurkovšek, Tea ; Lai, Xulong and Zhang, Zhifei (2021) In Global and Planetary Change 196.
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... (More)

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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organization
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type
Contribution to journal
publication status
published
subject
keywords
Conodont, Depth habitat, Early Triassic, Oxygen isotope, Smithian–Spathian
in
Global and Planetary Change
volume
196
article number
103362
publisher
Elsevier
external identifiers
  • scopus:85096617267
ISSN
0921-8181
DOI
10.1016/j.gloplacha.2020.103362
language
English
LU publication?
yes
id
70749230-fd51-40c4-ad34-426f84d95237
date added to LUP
2020-12-03 11:26:14
date last changed
2022-04-26 22:21:00
@article{70749230-fd51-40c4-ad34-426f84d95237,
  abstract     = {{<p>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.</p>}},
  author       = {{Chen, Yanlong and Joachimski, Michael M. and Richoz, Sylvain and Krystyn, Leopold and Aljinović, Dunja and Smirčić, Duje and Kolar-Jurkovšek, Tea and Lai, Xulong and Zhang, Zhifei}},
  issn         = {{0921-8181}},
  keywords     = {{Conodont; Depth habitat; Early Triassic; Oxygen isotope; Smithian–Spathian}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Global and Planetary Change}},
  title        = {{Smithian and Spathian (Early Triassic) conodonts from Oman and Croatia and their depth habitat revealed}},
  url          = {{http://dx.doi.org/10.1016/j.gloplacha.2020.103362}},
  doi          = {{10.1016/j.gloplacha.2020.103362}},
  volume       = {{196}},
  year         = {{2021}},
}