Miyamoto, M M Constraints on protein evolution and the age of the eubacteria/eukaryote split. [electronic resource] - Systematic biology Dec 1996 - 568-75 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1063-5157 Standard No.: 10.1093/sysbio/45.4.568 doi Subjects--Topical Terms: AnimalsArchaea--classificationArchaeal Proteins--chemistryBacteria--classificationBacterial Proteins--chemistryBiological EvolutionEchinodermataEukaryotic CellsEvolution, MolecularPaleontologyProkaryotic CellsProteins--chemistryTime FactorsVertebrates