كتب ذات صلة

The paleontology of the Niagaran limestone in the Chicago area

The Ordovician trilobite Pseudogygites Kobayashi in eastern and Arctic North America

New trilobites from the Maquoketa beds of Fayette county, Iowa

A monograph of the trilobites of North America: with coloured models of the species ...

• Upper Cambrian to Lower Ordovician conodont biostratigraphy and biofacies, Rabbitkettle Formation, District of Mackenzie
  المؤلفون: Ludvigsen, Rolf. ,  Landing, Ed.
• Upper Cambrian and Lower Ordovician trilobite biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie
  المؤلفون: Ludvigsen, Rolf.
• The type species of the Ordovician trilobite genus Isotelus I. gigas Dekay, 1824
  المؤلفون: Rudkin, David M. ,  Tripp, Ronald P.

• The water-striders of Ontario : (Heteroptera: Gerridae)
  المؤلفون: Cheng, Lanna. ,  Fernando, C. H.
• The vegetation and phytogeography of coastal southwestern James Bay
  المؤلفون: Riley, J. L. ,  McKay, Sheila M.
• Variation in the jaw musculature of the avian family Vireonidae
  المؤلفون: Barlow, Jon C. ,  Orenstein, Ronald I.