00913cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040003900111042001200150050001500162082001700177100002600194245009700220260011300317300003500430410006700465504002400532650002500556650003300581650004500614gs 59000185 DLC20260227111408.0760811s1958    nmubc    b   s000 0 eng c  ags 59000185   a(OCoLC)2364837  aU.S. Geol. Survey Libr.cWMUWdDLC  apremarc00aQE796b.G4  a564.809789671 aGehrig, John Leonard.00aMiddle Pennsylvanian brachiopods from the Mud Springs Mountains and Derry Hills, New Mexico.  aSocorro,bState Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology,c1958.  a24 p.b6 plates, maps.c28 cm.10aNew Mexico.bBureau of Mines and Mineral Resources.tMemoirv3  aBibliography: p.22. 0aBrachiopoda, Fossil. 0aPaleontologyyPennsylvanian. 0aPaleontologyzNew MexicozSierra County.