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Exceptional fossil assemblages confirm the existence of complex Early Triassic ecosystems during the early Spathian
- Source :
- Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021), Scientific Reports, Scientific Reports, Nature Publishing Group, 2021, 11 (1), ⟨10.1038/s41598-021-99056-8⟩, Scientific Reports, Nature Publishing Group, 2021, 11 (1), pp.19657. ⟨10.1038/s41598-021-99056-8⟩, Scientific Reports, 2021, 11 (1), ⟨10.1038/s41598-021-99056-8⟩
- Publication Year :
- 2021
- Publisher :
- Nature Portfolio, 2021.
-
Abstract
- The mass extinction characterizing the Permian/Triassic boundary (PTB; ~ 252 Ma) corresponds to a major faunal shift between the Palaeozoic and the Modern evolutionary fauna. The temporal, spatial, environmental, and ecological dynamics of the associated biotic recovery remain highly debated, partly due to the scarce, or poorly-known, Early Triassic fossil record. Recently, an exceptionally complex ecosystem dated from immediately after the Smithian/Spathian boundary (~ 3 myr after the PTB) was reported: the Paris Biota (Idaho, USA). However, the spatiotemporal representativeness of this unique assemblage remained questionable as it was hitherto only reported from a single site. Here we describe three new exceptionally diverse assemblages of the same age as the Paris Biota, and a fourth younger one. They are located in Idaho and Nevada, and are taxonomic subsets of the Paris Biota. We show that the latter covered a region-wide area and persisted at least partially throughout the Spathian. The presence of a well-established marine fauna such as the Paris Biota, as soon as the early Spathian, indicates that the post-PTB biotic recovery and the installation of complex ecosystems probably took place earlier than often assumed, at least at a regional scale.
- Subjects :
- 010506 paleontology
Permian
Paleozoic
Fauna
Science
Early Triassic
Evolutionary fauna
10125 Paleontological Institute and Museum
010502 geochemistry & geophysics
01 natural sciences
Article
Paleontology
14. Life underwater
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment
0105 earth and related environmental sciences
Extinction event
Multidisciplinary
Palaeontology
Palaeoecology
Biota
15. Life on land
Geography
560 Fossils & prehistoric life
[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy
[SDE]Environmental Sciences
Paleoecology
Medicine
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 11
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....d7716821b50a83722b75f1538a2f3489
- Full Text :
- https://doi.org/10.1038/s41598-021-99056-8⟩