Pennsylvanian Time Period By annaliseandmeg4eva Apr 25, 1992 Start of Pennsylvanian Time Period Period: Apr 25, 1992 to Apr 25, 2011 Pennsylvanian Time Period Period: Apr 26, 1992 to Apr 26, 1998 Bashkirian Timespan Apr 26, 1993 First Appearance of Conodonts Apr 26, 1994 First Appearance of Fusulinids Jan 1, 1997 Sauropsids (the earliest reptiles) Present Jul 26, 1997 Synapsids Present Period: Apr 26, 1998 to Apr 26, 2003 Moscovian Timespan Apr 26, 1999 Limstone Present and Dominant Apr 26, 2000 All Modern Classes of Fungi Apr 26, 2001 Dolomite Present and Dominant Apr 26, 2002 First Appearance of Amonite Genus Period: Apr 26, 2003 to Apr 26, 2006 Kasimovian Timespan Jul 26, 2003 Fusulinid Biozone of Obsoletes Obsoletes Jul 1, 2004 Colapse of Rainforest Ecology Mar 26, 2005 Rugosofusulina Aug 26, 2005 Jigulites Feb 26, 2006 Streptoghathodus Zethus Apr 26, 2006 Daixina Period: Apr 26, 2006 to Apr 26, 2011 Gzhelian Timespan Feb 1, 2007 Amniote Egg Jan 19, 2008 Tetrapods Present Apr 26, 2010 Streptognathodus Isolatus Apr 25, 2011 End of Pennslyvanian
