The Cambrian Period
Justin DiGiulio
Cambrian World
Time & Relevance
The Cambiran Period lasted about 55 million years, from approximately 541 million years ago to 485 million years ago. It marks a significant time in Earth's history, known for the "Cambrian Explosion". This was a rapid diversification of life forms that led to the emergence of many major groups of animals. (Image credit: canbedone via Getty Images)
During this period, the world was dominated by shallow seas with no life on land. The climate was generally warm, and there were no polar ice caps. This era saw the rapid evolution of complex life, with the emergence of many marine animals like trilobites, early arthropods, and the first ancestors of modern vetebrates. <--- This is a trilobite
The Cambrain Explosion was a pivotal event that drastically shaped the history of earth and everything that lives on it. A vast number of diverse and complex life forms quickly appeared in the oceans. Key developments included the introduction of most animal phyla, including early forms of anthropods mollusks, and chordates. - Organisms developed hard parts like shells and exoskeletons, which improved protection and mobility. -Predator-prey relationships intensified, increasing further diversification.
Random Facts
The Cambrian Explosion
1. The Cambrian Period saw the first development of complex eyes, particularly in trilobites.2. Animals like Opabinia, with five eyes and a trunk-like snout, thrived during this time. 3. Fossil sites like Burgess Shale captured rare soft-bodied animals 4. Higher oxygen levels in the oceans likely fueled the explosion of life. 5. Land was devoid of plants and animals. Life was almost entirely confined to the sea.
Sources
Young, Grant M. “Environmental upheavals of the ediacaran period and the Cambrian ‘explosion’ of Animal Life.” Geoscience Frontiers, vol. 6, no. 4, July 2015, pp. 523–535, https://doi.org/10.1016/j.gsf.2014.09.001. Feinberg, Todd E., and Jon Mallatt. “The evolutionary and genetic origins of consciousness in the Cambrian period over 500 million years ago.” Frontiers in Psychology, vol. 4, 2013, https://doi.org/10.3389/fpsyg.2013.00667.
GLY 1030 Mini Research Project: Geological Time- Cambiran Period
Justin DiGiulio
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Transcript
The Cambrian Period
Justin DiGiulio
Cambrian World
Time & Relevance
The Cambiran Period lasted about 55 million years, from approximately 541 million years ago to 485 million years ago. It marks a significant time in Earth's history, known for the "Cambrian Explosion". This was a rapid diversification of life forms that led to the emergence of many major groups of animals. (Image credit: canbedone via Getty Images)
During this period, the world was dominated by shallow seas with no life on land. The climate was generally warm, and there were no polar ice caps. This era saw the rapid evolution of complex life, with the emergence of many marine animals like trilobites, early arthropods, and the first ancestors of modern vetebrates. <--- This is a trilobite
The Cambrain Explosion was a pivotal event that drastically shaped the history of earth and everything that lives on it. A vast number of diverse and complex life forms quickly appeared in the oceans. Key developments included the introduction of most animal phyla, including early forms of anthropods mollusks, and chordates. - Organisms developed hard parts like shells and exoskeletons, which improved protection and mobility. -Predator-prey relationships intensified, increasing further diversification.
Random Facts
The Cambrian Explosion
1. The Cambrian Period saw the first development of complex eyes, particularly in trilobites.2. Animals like Opabinia, with five eyes and a trunk-like snout, thrived during this time. 3. Fossil sites like Burgess Shale captured rare soft-bodied animals 4. Higher oxygen levels in the oceans likely fueled the explosion of life. 5. Land was devoid of plants and animals. Life was almost entirely confined to the sea.
Sources
Young, Grant M. “Environmental upheavals of the ediacaran period and the Cambrian ‘explosion’ of Animal Life.” Geoscience Frontiers, vol. 6, no. 4, July 2015, pp. 523–535, https://doi.org/10.1016/j.gsf.2014.09.001. Feinberg, Todd E., and Jon Mallatt. “The evolutionary and genetic origins of consciousness in the Cambrian period over 500 million years ago.” Frontiers in Psychology, vol. 4, 2013, https://doi.org/10.3389/fpsyg.2013.00667.