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Home/Anthropology/Mains PYQ/2017/Paper II/Prehistoric Archaeology
UPSC MainsAnthropology Optional Paper II 2017 15 Marks Model Answer Available

Salient Features of Ramapithecus — 2017 Paper II

Question · 2017 · Paper II · 15 Marks

Describe the salient features of Ramapithecus.

Model Answer

VAID ICS

Approach

  • Demand of Question:Describe the fossil, dental-jaw morphology, discovery/distribution and historical phylogenetic interpretation, but explicitly state its present taxonomic status.
  • Structuring the Response:Discovery and age -> diagnostic morphology -> why it was once called an early hominin -> later craniofacial evidence and synonymisation with Sivapithecus.
  • Key Dimensions to Cover:G.E. Lewis (1934), Siwaliks/Haritalyangar; Miocene; thick enamel, robust jaw, reduced canine-diastema interpretation; Simons/Pilbeam early hominid view; later Sivapithecus/orangutan affinity; sexual dimorphism and taxonomic caution.

Model Answer

Introduction Ramapithecus holds a historically pivotal role in paleoanthropology. Discovered in 1932 by G. Edward Lewis in the Siwalik Hills (Haritalyangar, India) and dating to the Middle to Late Miocene epoch (approx. 14 to 8 million years ago), it was initially celebrated as the earliest direct ancestor of humans.

Body

Morphological Features (Salient Traits): The fossil evidence of Ramapithecus consists almost entirely of fragmentary mandibles (jaws) and maxillae (upper jaws) with teeth.

  • Dental Characteristics: It possessed thick tooth enamel and low-cusped cheek teeth, adaptations for powerful mastication (chewing tough vegetation).
  • Jaw Structure: The mandible was robust but not extremely deep.
  • Reconstructed Traits: Early researchers reconstructed these fragments to show a shortened face, reduced and non-projecting canines, and a parabolic (U-shaped) dental arcade, contrasting sharply with the large-canined apes of the Miocene.

The Early Hominin Hypothesis: In the 1960s, Elwyn Simons and David Pilbeam championed Ramapithecus as the earliest hominin. The combination of thick enamel, reduced canines, and assumed bipedalism (inferred indirectly from the jaw structure) made it the textbook missing link between apes and humans.

Current Taxonomic Status (The Paradigm Shift): This view collapsed in the late 1970s and 1980s. The discovery of more complete craniofacial fossils of a related ape, Sivapithecus, from the Potwar plateau revealed a concave face and narrow interorbital region—traits distinctly linking it to the modern orangutan lineage. Furthermore, researchers realized that the differences separating Ramapithecus and Sivapithecus were merely sexual dimorphism (females and males of the same species) or variations within a single genus.

Conclusion Today, Ramapithecus is no longer accepted as a valid hominin genus or human ancestor. It has been subsumed under the genus Sivapithecus, classified within the Ponginae sub-family. Its ultimate scientific value lies in methodological caution: it demonstrates how fragmentary jaw fossils can lead to erroneous evolutionary hypotheses when complete skulls are lacking.

2026 Ethnoarchaeology and classical archaeology. 2026 Give the distribution of Palaeolithic sites around the Himalayan and Sub-Himalayan areas, highlighting the typo-technologies of the tools. 2026 Thermoluminescence dating method. 2026 Write a detailed note on the characteristic features, chronology, geographical distribution, tool types and lifeways of Magdalenian cultural tradition of Europe.

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UPSC Anthropology Optional 2017 — Paper II

28 questions

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10 Marks150 words
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10 Marks150 words
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10 Marks150 words
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10 Marks150 words
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