Petrified Lightning - 2.178" Saharan Fulgurite disney 2018 (Source: USGS)

2018 (Source: USGS)

and the expected biological consequences match quite closely the extinctions observed in the paleontological record

It would be hard work

the 4th image is shown purely to illustrate where the cut signature came from

in 1883 Othniel C

Petrified Lightning - 2.178" Saharan Fulgurite disney 2018 (Source: USGS)Above: Front of the Specimen Card. When lightning strikes dry sand, the intense heat melts and fuses the silica creating tubes of rough glass called fulgurites. The process happens quickly, often trapping molecules from the surrounding atmosphere inside the walls of the impact tube. These natural time capsules allow scientists to study the composition of ancient climates. This specimen is a 2. 178" fulgurite collected in the Sahara Desert. Originally