Periods of reign.
Periods
they were the cretatious triassic and jurassic
The Horizontal Rows are called Periods & the Vertical are Families or Groups.
The measurement of Earth's history divided into time periods is called the geological time scale. It is divided into eons, eras, periods, epochs, and ages, with each unit representing a significant change in Earth's geological and biological history.
It is true that periodic table is divided into rows and columns. The rows are called periods and columns are called groups.
Geological time periods are divided and classified based on the rock layers and fossils found in them. Geologists use specific criteria to determine the boundaries between different periods, such as changes in rock types, fossil assemblages, and major geological events. These periods are then grouped into larger units called eras and eons, providing a framework for understanding Earth's history.
an emperors child is called an emprince and a female one is called an emprincess
The process of tooth formation, called odontogenesis, is divided into three primary periods: growth, calcification, and eruption.
periods are the rows and families are the columns
fossil record geologic time scale
The rows of elements in the periodic table are called periods. There are a total of 7 periods in the periodic table, each representing a different energy level or shell in which the elements' electrons are arranged.
There were three emperors called Valentinian (I, II, III)