Extinction Collection

GEOLOGY: K-T boundary Sample of the K-T boundary claystone from the Sussex locality, Wyoming, USA
FG-ea-733 GEOLOGY: K-T boundary - Sample of the K-T boundary claystone from the Sussex locality, Wyoming, USA Sample is 18 mm thick

GEOLOGY: K-T boundary site The photo depicts the Sussex locality, north of Casper, Wyoming, USA
FG-ea-729 GEOLOGY: K-T boundary site - The photo depicts the Sussex locality, north of Casper, Wyoming, USA. The boundary layer is indicated by the line on the photograph

GEOLOGY: K-T boundary site The photo depicts a hill near the town of Sussex, north of Casper, Wyoming, USA
FG-ea-727 GEOLOGY: K-T boundary site - The photo depicts a hill near the town of Sussex, north of Casper, Wyoming, USA The KT boundary layer is located on top of the grey sediments near the base of

GEOLOGY: K-T boundary Sussex site, north of Casper, Wyoming Collecting a sample of rock at the K-T boundary for museum
FG-ea-742 GEOLOGY: K-T boundary - Sussex site, north of Casper, Wyoming Collecting a sample of rock at the K-T boundary for museum display

GEOLOGY: K-T boundary K-T boundary Sussex locality, Wyoming, USA. The ruler
FG-ea-736 GEOLOGY: K-T boundary - K-T boundary Sussex locality, Wyoming, USA. The ruler and brush rest on the top of the K-T boundary layer

GEOLOGY: K-T boundary Close-up of the K-T boundary claystone layer at the Sussex locality, Wyoming, USA
FG-ea-732 GEOLOGY: K-T boundary - Close-up of the K-T boundary claystone layer at the Sussex locality, Wyoming, USA At bottom of the image is the mudstone of the Lance Formation (Cretaceous)

GEOLOGY: K-T boundary The K-T boundary claystone layer at the Sussex locality, Wyoming, USA
FG-ea-731 GEOLOGY: K-T boundary - The K-T boundary claystone layer at the Sussex locality, Wyoming, USA At bottom of the image is the mudstone of the Lance Formation (Cretaceous)

Butterfly Goodeid: live- bearing desert fish believed extinct until rediscovered in a swimming pool in Western Mexico
PM-10212 Butterfly Goodeid Ameca splendens live-bearing desert fish believed extinct until rediscovered in a swimming pool in Western Mexico

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