See and feel 16 earth tone fossils. Enjoy the slate blue era and geography accents. Two debossed sides show fossil illustrations. Four printed sides feature the fossil place, time period, era, and rock layer.
What's the difference between a time period and an era? Where in the world is each fossil found? What layer of rock? Use these blocks to foster a greater understanding of the natural world.
- 16 - 1.75 inch cubes
- Made using sustainable Midwestern basswood
- Printed with non-toxic, mouth safe inks
- 100% made in the USA
- Ages 2+
A fossil (from Classical Latin : fossilis, literally "obtained by digging") is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants. The totality of fossils is known as the fossil record.
Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolute ages of rocks and the fossils they host.