103:
1884:
1907:
1873:
945:
Kaufmann, B.; Trapp, E.; Mezger, K. (2004). "The numerical age of the Upper
Frasnian (Upper Devonian) Kellwasser horizons: A new U-Pb zircon date from Steinbruch Schmidt(Kellerwald, Germany)".
857:
The
Frasnian coincides with the second half of the "charcoal gap" in the fossil record, a time when atmospheric oxygen levels were below 13 percent, the minimum necessary to sustain wildfires.
980:
Algeo, T. J. (1998). "Terrestrial-marine teleconnections in the
Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events".
654:
643:
1253:
890:
738:
889:
and was accepted for the lower stage of the Upper
Devonian by the Subcommission on Devonian Stratigraphy in 1981. It is named after the village of
1948:
1246:
583:
534:
1202:
1124:
1239:
477:
1178:
1941:
916:"A high-precision U–Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications"
1977:
762:
668:
1987:
1934:
1262:
572:
1099:
1982:
815:
Period. It lasted from 382.7 million years ago to 372.2 million years ago. It was preceded by the
481:
1535:
1530:
339:
297:
1972:
635:
1114:
1086:
1007:
915:
954:
617:
1043:
8:
1866:
958:
102:
518:
1967:
1664:
1628:
1148:
1120:
1066:
1026:
826:
Major reef-building was under way during the
Frasnian Stage, particularly in western
1758:
1633:
1602:
1399:
1038:
1027:"Decision on the Boundary Stratotype for the Middle/Upper Devonian Series Boundary"
989:
962:
927:
864:
847:
456:
1922:
1858:
1854:
1850:
1727:
1623:
1561:
1456:
1425:
1394:
321:
30:
1883:
1918:
1877:
1696:
1566:
1461:
1430:
886:
843:
755:
658:
312:
1231:
931:
1961:
1914:
1597:
1587:
1556:
1519:
1451:
1420:
1217:
1204:
874:
839:
812:
777:
764:
744:
683:
670:
607:
330:
304:
289:
61:
1888:
1819:
1669:
1592:
993:
869:
808:
713:
438:
1906:
1814:
1683:
1659:
1504:
1299:
1182:
723:
396:
36:
1116:
When the
Invasion of Land Failed: The Legacy of the Devonian Extinctions
1809:
1769:
1712:
1612:
1509:
1383:
1283:
729:
347:
81:
46:
1872:
982:
Philosophical
Transactions of the Royal Society B: Biological Sciences
1824:
1774:
1748:
1707:
1654:
1499:
1475:
1356:
1346:
1335:
831:
820:
734:
389:
259:
86:
1784:
1779:
1743:
1643:
1576:
1545:
1440:
1409:
1370:
1320:
1294:
1270:
966:
914:
Parry, S. F.; Noble, S. R.; Crowley, Q. G.; Wellman, C. H. (2011).
816:
719:
639:
375:
368:
279:
269:
76:
71:
56:
51:
41:
1798:
1738:
1488:
1325:
1309:
354:
91:
66:
1834:
1717:
1351:
1065:
Klapper, G.; Feist, R.; Becker, R.; House, M. (December 1993).
894:
851:
846:
peaked, which were contemporary with the
Bretonic phase of the
835:
827:
662:
361:
1025:
Klapper, Gilbert; Feist, Raimund; House, Michael (June 1987).
885:
The
Frasnian Stage was proposed in 1879 by French geologist
913:
1064:
1067:"Definition of the Frasnian/Famennian Stage boundary"
860:
North
American subdivisions of the Frasnian include
1146:
944:
119:
1024:
1959:
1261:
1147:Coen-Aubert, Marie; Boulvain, Frédéric (2006).
1119:. Columbia University Press. pp. 110–11.
1942:
1247:
533:Subdivision of the Devonian according to the
973:
1014:. International Commission on Stratigraphy.
938:
540:Vertical axis scale: millions of years ago.
107:Paleogeography of the Late Devonian, 380 Ma
1949:
1935:
1254:
1240:
1113:McGhee, George R. Jr. (12 November 2013).
926:(4). London: Geological Society: 863–872.
1042:
1960:
1112:
1106:
880:
530:
1235:
1181:. University of Liège. Archived from
979:
1901:
907:
508:
490:
467:
446:
428:
16:First age of the Late Devonian epoch
1853:= kiloannum (thousands years ago);
13:
1857:= megaannum (millions years ago);
14:
1999:
1861:= gigaannum (billions years ago).
1179:"Frasnian mudmounds from Belgium"
920:Journal of the Geological Society
1905:
1882:
1871:
101:
34:
1044:10.18814/epiiugs/1987/v10i2/004
1171:
1140:
1058:
1018:
1000:
427:
1:
1300:Pleistocene (11.7 ka–2.58 Ma)
900:
1921:. You can help Knowledge by
7:
1263:Geological history of Earth
531:
254:
10:
2004:
1900:
1536:Mississippian (323–359 Ma)
1531:Pennsylvanian (299–323 Ma)
1295:Holocene (present–11.7 ka)
819:Stage and followed by the
29:382.7 ± 1.6 – 372.2 ± 1.6
1848:
1833:
1820:Paleoarchean (3.2–3.6 Ga)
1797:
1757:
1726:
1695:
1682:
1670:Terreneuvian (521–539 Ma)
1642:
1611:
1575:
1544:
1518:
1487:
1474:
1439:
1408:
1382:
1369:
1334:
1308:
1282:
1269:
932:10.1144/0016-76492010-043
793:
751:
714:Palmatolepis triangularis
708:Upper boundary definition
707:
699:
650:
632:Lower boundary definition
631:
623:
613:
603:
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590:
578:
568:
563:
555:
550:
117:
112:
100:
26:
21:
1815:Mesoarchean (2.8–3.2 Ga)
1660:Miaolingian (497–509 Ma)
1505:Guadalupian (260–272 Ma)
1357:Paleocene (56.0–66.0 Ma)
1347:Oligocene (23.0–33.9 Ma)
758:, Montagne Noire, France
655:Col du Puech de la Suque
482:Late Devonian extinction
122:
1810:Neoarchean (2.5–2.8 Ga)
1775:Orosirian (1.8–2.05 Ga)
1770:Statherian (1.6–1.8 Ga)
1713:Cryogenian (635–720 Ma)
1603:Llandovery (433–444 Ma)
1510:Cisuralian (272–299 Ma)
1321:Pliocene (2.59–5.33 Ma)
644:Ancyrodella rotundiloba
245:−360 —
235:−365 —
225:−370 —
215:−375 —
205:−380 —
195:−385 —
185:−390 —
175:−395 —
165:−400 —
155:−405 —
145:−410 —
135:−415 —
125:−420 —
1978:Devonian geochronology
1780:Rhyacian (2.05–2.3 Ga)
1749:Calymmian (1.4–1.6 Ga)
1708:Ediacaran (539–635 Ma)
1655:Furongian (485–497 Ma)
1500:Lopingian (252–260 Ma)
1326:Miocene (5.33–23.0 Ma)
1094:Cite journal requires
994:10.1098/rstb.1998.0195
947:The Journal of Geology
838:were taking shape. In
834:. On land, the first
1785:Siderian (2.3–2.5 Ga)
1744:Ectasian (1.2–1.4 Ga)
1665:Series 2 (509–521 Ma)
1352:Eocene (33.9–56.0 Ma)
893:, in the district of
1825:Eoarchean (3.6–4 Ga)
1718:Tonian (720 Ma–1 Ga)
1598:Wenlock (427–433 Ma)
1588:Pridoli (419–423 Ma)
1012:www.stratigraphy.org
711:FAD of the conodont
461:Famennian glaciation
1988:Geochronology stubs
1880: •
1869: •
1867:Geologic time scale
1629:Middle (458–470 Ma)
1593:Ludlow (423–427 Ma)
1562:Middle (383–393 Ma)
1457:Middle (237–247 Ma)
1426:Middle (164–174 Ma)
1214: /
959:2004JG....112..495K
881:Name and definition
794:Upper GSSP ratified
774: /
752:Upper boundary GSSP
700:Lower GSSP ratified
680: /
651:Lower boundary GSSP
624:Time span formality
1878:Geology portal
1739:Stenian (1–1.2 Ga)
1634:Early (470–485 Ma)
1567:Early (393–419 Ma)
1462:Early (247–252 Ma)
1431:Early (174–201 Ma)
1400:Early (100–145 Ma)
1395:Late (66.0–100 Ma)
1218:43.5032°N 3.0868°E
1008:"Chart/Time Scale"
891:Frasnes-lez-Couvin
778:43.4613°N 3.0403°E
684:43.5032°N 3.0868°E
614:Stratigraphic unit
604:Chronological unit
591:Time scale(s) used
502:shrubs & trees
1930:
1929:
1895:
1894:
1793:
1792:
1759:Paleoproterozoic
1678:
1677:
1624:Late (444–458 Ma)
1557:Late (359–383 Ma)
1470:
1469:
1452:Late (201–237 Ma)
1421:Late (145–164 Ma)
1365:
1364:
1286:(present–2.58 Ma)
1274:(present–66.0 Ma)
1153:Geologica Belgica
1126:978-0-231-16057-5
988:(1365): 113–130.
801:
800:
564:Usage information
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1902:
1889:World portal
1887:
1886:
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1802:
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1731:
1728:Mesoproterozoic
1700:
1693:
1692:
1688:
1647:
1616:
1580:
1549:
1523:
1492:
1485:
1484:
1480:
1444:
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1016:
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1004:
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997:
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971:
970:
942:
936:
935:
911:
865:West Falls Group
848:Variscan orogeny
789:
788:
786:
785:
784:
779:
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771:
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767:
739:Gephuroceratidae
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694:
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691:
690:
685:
681:
678:
677:
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478:Kellwasser event
473:
468:
457:Hangenberg event
452:
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105:
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33:
19:
18:
2003:
2002:
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1992:
1983:Devonian Europe
1958:
1957:
1956:
1955:
1898:
1896:
1891:
1881:
1870:
1862:
1844:
1836:
1829:
1800:
1789:
1760:
1753:
1729:
1722:
1698:
1697:Neoproterozoic
1687:(539 Ma–2.5 Ga)
1686:
1685:
1684:Proterozoic Eon
1674:
1645:
1638:
1614:
1607:
1578:
1571:
1547:
1540:
1521:
1514:
1490:
1478:
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1442:
1435:
1411:
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1373:
1372:
1361:
1337:
1330:
1311:
1304:
1285:
1273:
1272:
1265:
1260:
1223:43.5032; 3.0868
1222:
1220:
1216:
1213:
1208:
1205:
1203:
1201:
1200:
1198:
1197:
1188:
1186:
1177:
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1162:
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1111:
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1059:
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1023:
1019:
1006:
1005:
1001:
978:
974:
943:
939:
912:
908:
903:
883:
783:43.4613; 3.0403
782:
780:
776:
773:
768:
765:
763:
761:
760:
759:
717:
689:43.5032; 3.0868
688:
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671:
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11:
5:
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1928:
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1910:
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1892:
1849:
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1845:
1842:
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1831:
1830:
1828:
1827:
1822:
1817:
1812:
1806:
1804:
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1790:
1788:
1787:
1782:
1777:
1772:
1766:
1764:
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1754:
1752:
1751:
1746:
1741:
1735:
1733:
1724:
1723:
1721:
1720:
1715:
1710:
1704:
1702:
1690:
1680:
1679:
1676:
1675:
1673:
1672:
1667:
1662:
1657:
1651:
1649:
1640:
1639:
1637:
1636:
1631:
1626:
1620:
1618:
1609:
1608:
1606:
1605:
1600:
1595:
1590:
1584:
1582:
1573:
1572:
1570:
1569:
1564:
1559:
1553:
1551:
1542:
1541:
1539:
1538:
1533:
1527:
1525:
1520:Carboniferous
1516:
1515:
1513:
1512:
1507:
1502:
1496:
1494:
1482:
1472:
1471:
1468:
1467:
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1459:
1454:
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1446:
1437:
1436:
1434:
1433:
1428:
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1389:
1377:
1367:
1366:
1363:
1362:
1360:
1359:
1354:
1349:
1343:
1341:
1338:(23.0–66.0 Ma)
1332:
1331:
1329:
1328:
1323:
1317:
1315:
1312:(2.58–23.0 Ma)
1306:
1305:
1303:
1302:
1297:
1291:
1289:
1277:
1267:
1266:
1259:
1258:
1251:
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1170:
1139:
1125:
1105:
1096:|journal=
1057:
1017:
999:
972:
967:10.1086/421077
953:(4): 495–501.
937:
905:
904:
902:
899:
897:, in Belgium.
887:Jules Gosselet
882:
879:
878:
877:
872:
867:
844:Antler orogeny
807:is one of two
799:
798:
795:
791:
790:
756:Coumiac quarry
753:
749:
748:
709:
705:
704:
701:
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659:Montagne Noire
652:
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594:ICS Time Scale
592:
588:
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579:Regional usage
576:
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569:Celestial body
566:
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560:
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556:Name formality
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519:Hunsrück fauna
517:
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453:
443:
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60:
55:
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40:
35:
24:
23:
15:
9:
6:
4:
3:
2:
2000:
1989:
1986:
1984:
1981:
1979:
1976:
1974:
1973:Late Devonian
1971:
1969:
1966:
1965:
1963:
1952:
1947:
1945:
1940:
1938:
1933:
1932:
1926:
1924:
1920:
1917:article is a
1916:
1915:geochronology
1911:
1908:
1904:
1903:
1899:
1890:
1885:
1879:
1874:
1868:
1865:
1860:
1856:
1852:
1847:
1841:
1839:
1832:
1826:
1823:
1821:
1818:
1816:
1813:
1811:
1808:
1807:
1805:
1803:
1796:
1786:
1783:
1781:
1778:
1776:
1773:
1771:
1768:
1767:
1765:
1763:
1756:
1750:
1747:
1745:
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1737:
1736:
1734:
1732:
1725:
1719:
1716:
1714:
1711:
1709:
1706:
1705:
1703:
1701:
1699:(539 Ma–1 Ga)
1694:
1691:
1689:
1681:
1671:
1668:
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1663:
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1550:
1543:
1537:
1534:
1532:
1529:
1528:
1526:
1524:
1517:
1511:
1508:
1506:
1503:
1501:
1498:
1497:
1495:
1493:
1486:
1483:
1481:
1476:Paleozoic Era
1473:
1463:
1460:
1458:
1455:
1453:
1450:
1449:
1447:
1445:
1438:
1432:
1429:
1427:
1424:
1422:
1419:
1418:
1416:
1414:
1407:
1401:
1398:
1396:
1393:
1392:
1390:
1388:
1386:(66.0–145 Ma)
1381:
1378:
1376:
1374:(66.0–252 Ma)
1368:
1358:
1355:
1353:
1350:
1348:
1345:
1344:
1342:
1340:
1333:
1327:
1324:
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1319:
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1301:
1298:
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1290:
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1278:
1276:
1268:
1264:
1257:
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1250:
1245:
1243:
1238:
1237:
1234:
1230:
1227:
1185:on 2011-07-06
1184:
1180:
1174:
1158:
1154:
1150:
1143:
1128:
1122:
1118:
1117:
1109:
1101:
1088:
1072:
1068:
1061:
1045:
1040:
1037:(2): 97–101.
1036:
1032:
1028:
1021:
1013:
1009:
1003:
995:
991:
987:
983:
976:
968:
964:
960:
956:
952:
948:
941:
933:
929:
925:
921:
917:
910:
906:
898:
896:
892:
888:
876:
875:Genesee Group
873:
871:
868:
866:
863:
862:
861:
858:
855:
853:
849:
845:
841:
840:North America
837:
833:
829:
824:
822:
818:
814:
813:Late Devonian
810:
809:faunal stages
806:
796:
792:
787:
757:
754:
750:
747:
746:
745:Beloceratidae
741:
740:
736:
732:
731:
726:
725:
721:
716:
715:
710:
706:
702:
698:
693:
664:
660:
656:
653:
649:
646:
645:
641:
637:
634:
630:
626:
622:
619:
616:
612:
609:
606:
602:
597:
593:
589:
585:
581:
577:
574:
571:
567:
562:
558:
554:
549:
538:
537:, as of 2021.
536:
529:
520:
516:
511:
510:
498:
493:
492:
483:
479:
475:
470:
469:
458:
454:
449:
448:
440:
436:
431:
430:
398:
391:
384:
377:
370:
363:
356:
349:
341:
332:
323:
314:
306:
299:
292:
291:
283:
281:
272:
271:
263:
261:
121:
116:
111:
104:
99:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
43:
38:
32:
25:
20:
1923:expanding it
1912:
1897:
1863:
1799:Archean Eon
1761:(1.6–2.5 Ga)
1646:(485–539 Ma)
1615:(444–485 Ma)
1579:(419–444 Ma)
1548:(359–419 Ma)
1522:(299–359 Ma)
1491:(252–299 Ma)
1479:(252–539 Ma)
1443:(201–252 Ma)
1412:(145–201 Ma)
1371:Mesozoic Era
1271:Cenozoic Era
1199:
1187:. Retrieved
1183:the original
1173:
1161:. Retrieved
1159:(1–2): 19–25
1156:
1152:
1142:
1130:. Retrieved
1115:
1108:
1087:cite journal
1075:. Retrieved
1073:(4): 433–441
1070:
1060:
1048:. Retrieved
1034:
1030:
1020:
1011:
1002:
985:
981:
975:
950:
946:
940:
923:
919:
909:
884:
870:Sonyea Group
859:
856:
825:
804:
802:
743:
737:
728:
722:
712:
642:
532:
439:Rhynie chert
382:
288:
277:
268:
257:
1835:Hadean Eon
1613:Ordovician
1384:Cretaceous
1284:Quaternary
1221: /
1077:19 December
1050:19 December
781: /
724:Ancyrodella
718:LAD of the
687: /
1962:Categories
1837:(4–4.6 Ga)
1801:(2.5–4 Ga)
1730:(1–1.6 Ga)
1336:Paleogene
1206:43°30′12″N
1189:2011-02-25
1149:"Frasnian"
901:References
766:43°27′41″N
735:goniatites
730:Ozarkodina
672:43°30′12″N
599:Definition
500:Widespread
348:Lochkovian
113:Chronology
1864:See also:
1644:Cambrian
1577:Silurian
1546:Devonian
1441:Triassic
1410:Jurassic
1209:3°05′12″E
832:Australia
821:Famennian
769:3°02′25″E
720:conodonts
675:3°05′12″E
551:Etymology
390:Famennian
260:Paleozoic
1968:Frasnian
1489:Permian
1310:Neogene
1163:10 March
1132:21 April
1031:Episodes
817:Givetian
805:Frasnian
733:and the
640:conodont
582:Global (
397:Tournai.
383:Frasnian
376:Givetian
369:Eifelian
280:Devonian
22:Frasnian
955:Bibcode
836:forests
823:Stage.
811:in the
638:of the
513:←
495:←
472:←
451:←
433:←
355:Pragian
305:Přídolí
250:–
240:–
230:–
220:–
210:–
200:–
190:–
180:–
170:–
160:–
150:–
140:–
130:–
1843:
1123:
895:Couvin
852:Europe
842:, the
828:Canada
663:France
627:Formal
559:Formal
423:
418:
413:
408:
403:
362:Emsian
1913:This
618:Stage
573:Earth
313:Early
1919:stub
1165:2013
1134:2015
1121:ISBN
1100:help
1079:2020
1052:2020
830:and
803:The
797:1993
742:and
727:and
703:1986
331:Late
37:PreꞒ
1039:doi
990:doi
986:353
963:doi
951:112
928:doi
924:168
850:in
636:FAD
608:Age
584:ICS
535:ICS
322:Mid
1964::
1859:Ga
1855:Ma
1851:ka
1155:.
1151:.
1091::
1089:}}
1085:{{
1071:16
1069:.
1035:10
1033:.
1029:.
1010:.
984:.
961:.
949:.
922:.
918:.
854:.
661:,
657:,
340:EM
87:Pg
31:Ma
1950:e
1943:t
1936:v
1925:.
1255:e
1248:t
1241:v
1192:.
1167:.
1157:9
1136:.
1102:)
1098:(
1081:.
1054:.
1041::
996:.
992::
969:.
965::
957::
934:.
930::
586:)
484:)
480:(
459:,
298:M
290:C
270:S
92:N
82:K
77:J
72:T
67:P
62:C
57:D
52:S
47:O
42:Ꞓ
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