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Phylogenetic and Biogeographic Analysis of Sphaerexochine Trilobites
BACKGROUND: Sphaerexochinae is a speciose and widely distributed group of cheirurid trilobites. Their temporal range extends from the earliest Ordovician through the Silurian, and they survived the end Ordovician mass extinction event (the second largest mass extinction in Earth history). Prior to t...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Public Library of Science
2011
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124496/ https://www.ncbi.nlm.nih.gov/pubmed/21738632 http://dx.doi.org/10.1371/journal.pone.0021304 |