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Showing 121 - 140 results of 37,796 for search '"Pennsylvania"', query time: 0.66s Refine Results
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    ... Ordovician age from the geologically complex Martinsburg Formation in central Pennsylvania. The fossils...
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  3. 123
    ... of mid-Late Ordovician age from the geologically complex Martinsburg Formation in central Pennsylvania...
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  8. 128
    Published 2002
    Subjects: ...principal at Pennsylvania State U...
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  9. 129
    Subjects: ...Bituminous coal--Pennsylvania--Maps...
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  10. 130
    Subjects: ...Bituminous coal--Pennsylvania--Maps...
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  11. 131
    .... The SSHO is located in the temperate climate zone of central Pennsylvania and comprises a first-order...
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  15. 135
    ... Pennsylvania. Both are unique specimens. Kinzeria crinita new genus and species has a body divided into three...
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  16. 136
  17. 137
    ... for the first time in North America, based on fossil beetle assemblages at Titusville, Pennsylvania. AMS dating...
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  18. 138
    Subjects: ...Pennsylvania politics and government...
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  19. 139
    by Ligato, Dominic
    Published 1957
    Subjects: ...Pennsylvania Hospital (Philadelphia...
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  20. 140
    Subjects: ...Bituminous coal--Pennsylvania--Maps...
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