Chatham Group

Age range: base of the Ashbyan to the top of the Late/Upper Triassic or 457.30000 to 201.40000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Ashbyan457.3 - 449.6USA (Virginia) (164447 197377)
Anisian247.2 - 242.0Canada (Nova Scotia) (227834)
Carnian237.0 - 228.0Canada (Nova Scotia) (55416 80074 80079 80093 89078 89080 89088 107284 107285 107286)
Carnian237.0 - 228.0USA (North Carolina) (24499 24552 24554 24601 24602 46567 55526 74205 93563 93614 107418 107424 169982)
Carnian - Norian237.0 - 208.5USA (North Carolina) (89149)
Carnian - Norian237.0 - 208.5Canada (Nova Scotia) (187199)
Late/Upper Triassic237.0 - 201.4USA (Pennsylvania) (52494 189579)
Norian228.0 - 208.5USA (North Carolina) (79951 99429 99541 227823)
Norian228.0 - 208.5USA (Pennsylvania) (34759 84111 45195 54144 55413 55414 55415 55419 59371 68706 84112 84113 84114 84115 84116 84117 93037 99375 105836 106284 107421 107422 107423 163460 221018 221019 221020 221021)
Norian228.0 - 208.5USA (Virginia) (103815 103818 105101 105551 107271 152885 154230 154231 224089)
Norian228.0 - 208.5USA (New York) (57917)
Norian228.0 - 208.5USA (New Jersey) (12856 46621 46622 55410 55411 55412 55418 55492 62836 62841 89131 91743 92082 92106 92108 187287 187289 187290 187317 187318 187319 190915 227830 227831 227832 230401)
Norian228.0 - 208.5USA (Connecticut) (62843 79375 91752 173354)
Norian228.0 - 208.5Canada (Nova Scotia) (89142 107287 138975)
Norian228.0 - 208.5USA (Maryland) (35079)
Norian - Rhaetian228.0 - 201.3USA (New Jersey) (80143 89137 92107 187321)
Norian - Rhaetian228.0 - 201.3USA (Pennsylvania) (68705)
Lacian - Alaunian221.5 - 212.0USA (Virginia) (68889 68890)
Alaunian215.56 - 212.0USA (Connecticut) (91750)
Rhaetian208.5 - 201.3USA (Pennsylvania) (62766 62767 62768 132244)
Rhaetian208.5 - 201.3USA (Connecticut) (89140)
Rhaetian208.5 - 201.3USA (New Jersey) (194093)