If your looking to delve into the wonders of the past, this is the perfect place!
Fossils are the preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers. Fossils also include any preserved trace of life that is typically more than 10 000 years old.
Artifacts are objects made by a human being. Artifacts include art, tools, and clothing made by people of any time and place. The term can also be used to refer to the remains of an object, such as a shard of broken pottery or glassware. Artifacts are immensely useful to scholars who want to learn about a culture.
WHAT IS AN EON?
The largest category of geological time. Earth's history is characterized by four eons; in order from oldest to youngest: Hadean, Archean, Proterozoic, and Phanerozoic. Collectively, the Hadean, Archean, and Proterozoic are sometimes informally referred to as the "Precambrian."
WHAT IS AN ERA?
Eons of geological time are then divided into eras, which are the second-longest units of geological time. The Phanerozoic eon is divided into three eras: the Paleozoic, Mesozoic, and Cenozoic.
WHAT IS A PERIOD?
Just as eons are divided into eras, eras are subdivided into a span of time known as periods. The Paleozoic era is divided into six periods. From oldest to youngest: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian.
WHAT IS AN EPOCH?
Periods of geological time are divided into epochs. For example, the Paleogene period is divided from oldest to youngest: the Paleocene, Eocene, and Oligocene epochs.
Dating back hundreds of millions of years ago, this extinct group of aquatic lizards attained a high degree of aquatic adaptation worldwide during the Cretaceous Period.
Equine teeth, or horse teeth, have an interweaving fold of hard enamel and dentin. The enamel is important for grinding food. The chewing surfaces of the teeth must have enamel-to-enamel contact.
Enchodus is an extinct ancestor to bony fish. It flourished during the Upper Cretaceous Period. They survived the Cretaceous–Paleogene extinction event and persisted at least into the Eocene Period.
Sharks belong to a group of creatures known as cartilaginous fishes, because most of their skeleton is made from cartilage rather than bone. Only their teeth, their skeleton is actually a tissue.
Trilobites appear fully developed in the Cambrian Period, so its likely that the ancestral trilobites originated during the Ediacaran Period of Precambrian times.
Whales have no external ear opening. They instead use their lower jawbone to transmit vibrations to their ear with a pad of fat to enhance these vibrations for the tiny ear bones.
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