Sentence Examples


  • The ancient life of the Atlantic border of North America was also becoming known through the work of the pioneer verte.rate palaeontologists Thomas Jefferson (1743-1826), Richard Harlan (1796-1843), Jeffries Wyman (1814-1874) and Joseph Leidy (1823-1891).
  • The master works of Joseph Leidy began with the first-fruits of western exploration in 1847 and extended through a series of grand memoirs, culminating in 1874.
  • Leidy adhered strictly to Cuvier's exact descriptive methods, and while an evolutionist and recognizing clearly the genetic relationships of the horses and other groups, he never indulged in speculation.
  • Discoveries in North America by Leidy, Cope and Marsh, and the ensuing phylogenies gave enormous prestige to palaeontology.
  • Leidy on the evidence of imperfect materials, and other remains now known to belong to the same type were subsequently described as Cosoryx, to which Blastomeryx seems to be allied..