Question

Synapsids were derived from early reptiles

• A. Pelycosaur, therapside and mammals
• B. DInosaurs, thecodonts, crocodile
• C. Modern reptile and bird
• D. Modern reptile, dinosaurs and bird

Answer 1

The correct option is A Pelycosaur, therapside and mammals

• Synapsid or therapsids are a group of animals which include mammals and all those animal which are more closely related to mammals.
  
• They were the largest terrestrial vertebrates present during the Permian period i.e, around 299 to 251 million years ago.
  
• The primitive synapsids were known as pelycosaurs.
  
• The advanced mammal-like synapsids were known as therapsids.
• The synapsids which evolved from basal amniotes were known as sauropsids (includes modern reptiles and birds).
• So, the correct answer is 'Pelycosaur, therapsids and mammals'.