AP BIOLOGY

CLASSIFICATION

CHARACTERISTICS OF PRIMATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the earliest primate fossil called?
A
Altiatlasius
B
Austalopithecine
C
Equatorius
D
Proconsul
Explanation: 

Detailed explanation-1: -Altiatlasius: A few molars and a jaw fragment are all that’s known of this small mammal discovered in Morocco. Many paleontologists consider Altiatlasius, which lived some 57 or 56 million years ago, to be the first true primate.

Detailed explanation-2: -(The first known primate, Purgatorius, dating back as far as 65 million years ago, is known only from isolated teeth and jaw fragments.)

Detailed explanation-3: -The earliest known primate skeleton has been found by palaeontologists, a 55 million-year-old tree-dwelling creature that lived in what is now central China. Its fossil was discovered by a team from Beijing’s Institute of Vertebrate Paleontology and Paleoanthropology, led by Ni Xijun.

Detailed explanation-4: -Primates first appeared in the fossil record nearly 55 million years ago, and may have originated as far back as the Cretaceous Period.

Detailed explanation-5: -Purgatorius is a genus of seven extinct eutherian species typically believed to be the earliest example of a primate or a proto-primate, a primatomorph precursor to the Plesiadapiformes, dating to as old as 66 million years ago.

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