Stem Lagomorpha and the Antiquity of Glires
- 18 February 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 307 (5712) , 1091-1094
- https://doi.org/10.1126/science.1107808
Abstract
We describe several fossils referable to Gomphos elkema from deposits close to the Paleocene-Eocene boundary at Tsagan Khushu, Mongolia. Gomphos shares a suite of cranioskeletal characters with extant rabbits, hares, and pikas but retains a primitive dentition and jaw compared to its modern relatives. Phylogenetic analysis supports the position of Gomphos as a stem lagomorph and excludes Cretaceous taxa from the crown radiation of placental mammals. Our results support the hypothesis that rodents and lagomorphs radiated during the Cenozoic and diverged from other placental mammals close to the Cretaceous-Tertiary boundary.Keywords
This publication has 18 references indexed in Scilit:
- A Molecular Supermatrix of the Rabbits and Hares (Leporidae) Allows for the Identification of Five Intercontinental Exchanges During the MioceneSystematic Biology, 2004
- Local Molecular Clocks in Three Nuclear Genes: Divergence Times for Rodents and Other Mammals and Incompatibility Among Fossil CalibrationsJournal of Molecular Evolution, 2003
- Radiation of Extant Marsupials After the K/T Boundary: Evidence from Complete Mitochondrial GenomesJournal of Molecular Evolution, 2003
- Higher-level systematics of rodents and divergence time estimates based on two congruent nuclear genesMolecular Phylogenetics and Evolution, 2003
- Placental mammal diversification and the Cretaceous–Tertiary boundaryProceedings of the National Academy of Sciences, 2003
- Rodent Phylogeny and a Timescale for the Evolution of Glires: Evidence from an Extensive Taxon Sampling Using Three Nuclear GenesMolecular Biology and Evolution, 2002
- Mammalian Dispersal at the Paleocene/Eocene BoundaryScience, 2002
- Late Cretaceous relatives of rabbits, rodents, and other extant eutherian mammalsNature, 2001
- A molecular timescale for vertebrate evolutionNature, 1998
- An Empirical Test of Bootstrapping as a Method for Assessing Confidence in Phylogenetic AnalysisSystematic Biology, 1993