• Alsophis anomalus 

    Powell, Robert; Henderson, Robert W (Society for the Study of Amphibians and Reptiles, 1998)
  • Alsophis antiguae 

    Henderson, Robert W.; Powell, Robert; Daltry, Jennifer C.; Day, Mark L. (Society for the Study of Amphibians and Reptiles, 1996)
  • Alsophis ater 

    Henderson, Robert W.; Powell, Robert (Society for the Study of Amphibians and Reptiles, 1996)
  • Alsophis melanichnus 

    Powell, Robert; Henderson, Robert W (Society for the Study of Amphibians and Reptiles, 1998)
  • Alsophis rijgersmaei 

    Townsend, Josiah H.; Powell, Robert; Henderson, Robert W. (Society for the Study of Amphibians and Reptiles, 2000)
  • Alsophis rufiventris 

    Maley, Abigail J.; Savit, Aaron Z.; Heinz, Heather M.; Powell, Robert; Henderson, Robert W. (Society for the Study of Amphibians and Reptiles, 2006)
  • Alsophis sanctaecrucis 

    Henderson, Robert W.; Powell, Robert (Society for the Study of Amphibians and Reptiles, 1996)
  • Alternative approaches to the identification and reconstruction of paleoecology of Quaternary mammals 

    George, Christian Owens (2012-12)
    Since the 19th century the remains of Quaternary mammals were an important source of data for reconstructing past environmental conditions. I tested two basic assumptions that underlie Quaternary vertebrate paleoecology. ...
  • Alternative groundwater resources in North-central Texas for the development of the Barnett Shale gas play 

    McGlynn, Edward R. (2012-08)
    Texas water resources are under pressure due to population growth expected in the coming decades, increasing industrial demands, and frequent periods of drought. With this increasing demand for limited water resources it ...
  • Amastridium, A. veliferum 

    Wilson, Larry David (Society for the Study of Amphibians and Reptiles, 1988)
  • Ambystoma 

    Tihen, Joseph A. (American Society of Ichthyologists and Herpetologists, 1969)
  • Ambystoma annulatum 

    Anderson, James D. (American Society of Ichthyologists and Herpetologists, 1965)
  • Ambystoma barbouri 

    Kraus, Fred (Society for the Study of Amphibians and Reptiles, 1996)
  • Ambystoma cingulatum 

    Martof, Bernard S. (American Society of Ichthyologists and Herpetologists, 1968)
  • Ambystoma dumerilii 

    Brandon, Ronald A. (Society for the Study of Amphibians and Reptiles, 1992)
  • Ambystoma gracile 

    Snyder, Richard C (American Society of Ichthyologists and Herpetologists, 1963)
  • Ambystoma jeffersonianum 

    Uzzell, Thomas (American Society of Ichthyologists and Herpetologists, 1967)
  • Ambystoma laterale 

    Uzzell, Thomas (American Society of Ichthyologists and Herpetologists, 1967)
  • Ambystoma mabeei 

    Hardy, Jerry D., Jr.; Anderson, James D. (American Society of Ichthyologists and Herpetologists, 1970)
  • Ambystoma macrodactylum 

    Ferguson, Denzel E. (American Society of Ichthyologists and Herpetologists, 1963)