Tops Summary Page for Decatur County
KID, API-Number, Well Name,TRS,Top,Base,Name,Rank,System,Subsystem,Series,Source,Level,Reject,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,448, ,Niobrara Chalk,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,932, ,Fort Hays Limestone,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,986, ,B-FtHays,BED,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,989, ,Codell Sandstone,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1038, ,Blue Hills Shale,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1218, ,Greenhorn Limestone,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1256, ,Graneros Shale,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1305, ,Dakota,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1615, ,Kiowa Shale,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1692, ,Cheyenne Sandstone,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,1838, ,Morrison,FORMATION,Jurassic, ,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2096, ,Blaine,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2109, ,Flower-pot Shale,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2119, ,Cedar Hills Sandstone,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2385, ,Stone Corral,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2423, ,B STNC,BED,Permian, ,Leonardian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2422, ,Ninnescah Shale,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2577, ,Chase,GROUP,Permian, ,Wolfcampian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2776, ,Matfield Shale,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,2874, ,Wreford Limestone,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3107, ,Neva Limestone,MEMBER,Permian, ,Wolfcampian,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3314, ,Wabaunsee,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3372, ,Root Shale,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3389, ,Stotler Limestone,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3493, ,Severy Shale,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3511, ,Topeka Limestone,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3671, ,Heebner Shale,MEMBER,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3718, ,Lansing,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3817, ,Kansas City,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,3912, ,B-KCTY,BED,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,4087, ,Cherokee,GROUP,Carboniferous,Pennsylvanian,Middle,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,4113, ,B PENN LM,BED,Carboniferous,Pennsylvanian,Lower,PG,Poor, ,
1001206517,15-039-00469,JOHN VAVROCH 1,SKELLY OIL CO,T4S R28W sec. 4,4245, ,Arbuckle,GROUP,Ordovician, ,Lower,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,588, ,Niobrara Chalk,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1077, ,Fort Hays Limestone,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1137, ,B-FtHays,BED,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1152, ,Codell Sandstone,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1183, ,Blue Hills Shale,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1380, ,Greenhorn Limestone,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1446, ,Graneros Shale,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1520, ,Dakota,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1807, ,Kiowa Shale,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,1924, ,Cheyenne Sandstone,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2072, ,Morrison,FORMATION,Jurassic, ,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2321, ,Blaine,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2336, ,Cedar Hills Sandstone,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2581, ,Stone Corral,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2616, ,B STNC,BED,Permian, ,Leonardian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2617, ,Ninnescah Shale,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2803, ,Chase,GROUP,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2805, ,Winfield Limestone,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2895, ,Towanda Limestone,MEMBER,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,2945, ,Fort Riley Limestone,MEMBER,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3008, ,Matfield Shale,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3076, ,Wreford Limestone,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3282, ,Neva Limestone,MEMBER,Permian, ,Wolfcampian,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3478, ,Wabaunsee,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3551, ,Root Shale,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3571, ,Stotler Limestone,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3679, ,Severy Shale,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3695, ,Topeka Limestone,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3866, ,Heebner Shale,MEMBER,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,3913, ,Lansing,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4016, ,Kansas City,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4056, ,Stark Shale,MEMBER,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4124, ,B-KCTY,BED,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4306, ,Cherokee,GROUP,Carboniferous,Pennsylvanian,Middle,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4350, ,B PENN LM,BED,Carboniferous,Pennsylvanian,Lower,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4464, ,Mississippian,SUBSYSTEM,Carboniferous,Mississippian, ,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4498, ,B MISS,BED,Carboniferous,Mississippian, ,PG,Poor, ,
1006035351,15-039-20323,SCHMAHL 'A' 1,CITIES SERVICE OIL CO.,T5S R30W sec. 22,4503, ,Arbuckle,GROUP,Ordovician, ,Lower,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,762, ,Niobrara Chalk,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1119, ,Fort Hays Limestone,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1177, ,B-FtHays,BED,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1183, ,Codell Sandstone,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1219, ,Blue Hills Shale,MEMBER,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1411, ,Greenhorn Limestone,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1470, ,Graneros Shale,FORMATION,Cretaceous, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1538, ,Dakota,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,1846, ,Kiowa Shale,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2014, ,Cheyenne Sandstone,FORMATION,Cretaceous, ,Lower,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2103, ,Morrison,FORMATION,Jurassic, ,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2345, ,Blaine,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2362, ,Flower-pot Shale,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2367, ,Cedar Hills Sandstone,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2618, ,Stone Corral,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2652, ,B STNC,BED,Permian, ,Leonardian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2653, ,Ninnescah Shale,FORMATION,Permian, ,Leonardian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2829, ,Chase,GROUP,Permian, ,Wolfcampian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,2952, ,Towanda Limestone,MEMBER,Permian, ,Wolfcampian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3052, ,Matfield Shale,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3130, ,Wreford Limestone,FORMATION,Permian, ,Wolfcampian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3320, ,Neva Limestone,MEMBER,Permian, ,Wolfcampian,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3509, ,Wabaunsee,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3569, ,Root Shale,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3587, ,Stotler Limestone,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3701, ,Severy Shale,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3770, ,Topeka Limestone,FORMATION,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3880, ,Heebner Shale,MEMBER,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,3926, ,Lansing,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4144, ,Kansas City,GROUP,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4080, ,Stark Shale,MEMBER,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4134, ,B-KCTY,BED,Carboniferous,Pennsylvanian,Upper,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4288, ,Cherokee,GROUP,Carboniferous,Pennsylvanian,Middle,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4328, ,B PENN LM,BED,Carboniferous,Pennsylvanian,Lower,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4428, ,Mississippian,SUBSYSTEM,Carboniferous,Mississippian, ,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4519, ,B MISS,BED,Carboniferous,Mississippian, ,PG,Poor, ,
1006035757,15-039-20538,MULLER 1,CHEROKEE PETROLEUM CORP.,T3S R29W sec. 34,4534, ,Arbuckle,GROUP,Ordovician, ,Lower,PG,Poor, ,