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Diminutive fleet-footed tyrannosauroid narrows the 70-million-year gap in the North American fossil record
To date, eco-evolutionary dynamics in the ascent of tyrannosauroids to top predator roles have been obscured by a 70-million-year gap in the North American (NA) record. Here we report discovery of the oldest Cretaceous NA tyrannosauroid, extending the lineage by ~15 million years. The new taxon—Moro...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385174/ https://www.ncbi.nlm.nih.gov/pubmed/30820466 http://dx.doi.org/10.1038/s42003-019-0308-7 |