61 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2014-12-10 13:35:42
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62 | Add to Reading ListSource URL: www.paleosoc.orgLanguage: English - Date: 2013-01-11 15:38:16
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63 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-06-28 13:45:00
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64 | Add to Reading ListSource URL: www.fossilmall.comLanguage: English - Date: 2014-09-12 18:27:26
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65 | Add to Reading ListSource URL: www.paleosoc.orgLanguage: English - Date: 2014-08-27 17:32:53
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66 | Add to Reading ListSource URL: www.fs.usda.govLanguage: English - Date: 2014-05-14 15:48:23
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67 | Add to Reading ListSource URL: www.fs.usda.govLanguage: English - Date: 2014-08-12 18:36:18
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68 | Add to Reading ListSource URL: www.nps.govLanguage: English - Date: 2013-12-04 10:32:44
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69 | Add to Reading ListSource URL: depts.washington.eduLanguage: English - Date: 2012-04-09 16:02:16
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70 | Add to Reading ListSource URL: www.clim-past.netLanguage: English - Date: 2014-08-25 02:58:41
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