Info

Fern-spore spike

No

Yes

No

Yes

No

Iridium anomaly

No

No

No

6.8 ppb (25)

No

Claystone layer

No

No

No

Yes

No

Shocked minerals

No

Yes

No

Yes

No

Magnetostratigraphy

No

Yes (23)

Yes (23)

Yes

No

Radiometric dates

Yes (21)

Yes (24)

Yes (24)

Yes

No

K vertebrates below

Yes (22)

No

No

Yes (25)

Yes

T vertebrates above

Yes (22)

No

No

Yes (25)

Yes

K leaves below

Yes

No

No

Yes (25, 26)

No

T leaves above

Yes

No

No

Yes (25, 26)

No

Locality name

(61) Dogie Creek

(62) Teapot Dome

(63) Sussex

(64) North Horn Mountain

(65) Red Deer Valley

Latitude

43° 17' 31" N

43° 15' 08" N

43° 57' 51" N

39° 13' 12" N

51° 54' 49" N

Longitude

104° 41' 19" W

106° 03' 57" W

106° 20' 01" W

111° 11' 56" W

112° 56' 48" W

County

Niobrara

Converse

Johnson

Emery

Kneehills

State/Province

Wyoming

Wyoming

Wyoming

Utah

Alberta

Country

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