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Cenozoic megatooth sharks occupied extremely high trophic positions
Trophic position is a fundamental characteristic of animals, yet it is unknown in many extinct species. In this study, we ground-truth the (15)N/(14)N ratio of enameloid-bound organic matter (δ(15)N(EB)) as a trophic level proxy by comparison to dentin collagen δ(15)N and apply this method to the fo...
Autores principales: | , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9217088/ https://www.ncbi.nlm.nih.gov/pubmed/35731884 http://dx.doi.org/10.1126/sciadv.abl6529 |