Question

Which geographical era is known as age of seed ferns
1. Cenozoic era
2. Mesozoic era
3. Proterozoic era
4. Paleozoic era

Answer 1

Correct Answer - Option 4 : Paleozoic era

Concept: 

• The duration of the earth's history has been divided into smaller spans called the eras.
• The five eras are Archeozoic era, Proterozoic era, paleozoic era, Mesozoic era & Cenozoic era 
• Out of these, the three more recent eras are further divided into smaller spans known as the periods. which in turn are split up into epoches.

​Explanation:

• The correct order of eras from beginning to present is 
• Archeozoic era → Proterozoic era →  paleozoic era →  Mesozoic era →  Cenozoic era
• The Paleozoic Era is divided into Six periods -  Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian.
• During the Silurian period, the earliest spore-bearing plants originated and then in the Devonian period, the earliest mosses and ferns appeared on the earth surface
• Thus, the Paleozoic era is considered the ''age of seed ferns''

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Era	Animal group	Plant group
Cenozoic Era	Rise of first primates to Modern man	Adaptive radiation of flowering plants
Mesozoic Era	Extinction of marine invertebrates to Extinction of giant reptiles	The dominance of Flowering plants
Proterozoic	Primitive metazoans (sponges & Cnidarians), primitive eukaryotes, scanty fossils
Archezoic	Origin of life; no recognizable fossils. Origin of the solar system