Which dental pattern is described as elongated crescent-shaped ridges and is typical of deer and cattle?

Which dental pattern is described as elongated crescent-shaped ridges and is typical of deer and cattle?

• A. Hypsodont
• B. Bunodont
• C. Selenodont
• D. Brachyodont

Answer: (C)

The main idea here is how tooth surfaces reveal the diet and feeding strategy of animals. The described pattern—elongated crescent-shaped ridges on the grinding surfaces of the molars—is a hallmark of selenodont dentition. This crescent shape is well suited for grinding fibrous plant material, which is why it appears in deer and cattle, both of which are ruminant herbivores that rely on tough vegetation. Hypsodont refers to teeth that are high-crowned, which speaks to durability and wear life rather than the shape of the ridges. Brachyodont describes low-crowned teeth, again about crown height rather than ridge pattern. Bunodont teeth have rounded cusps typical of omnivores, not the elongated crescent ridges described here. So the crescent-shaped grinding ridges point to selenodont dentition, matching deer and cattle.

The main idea here is how tooth surfaces reveal the diet and feeding strategy of animals. The described pattern—elongated crescent-shaped ridges on the grinding surfaces of the molars—is a hallmark of selenodont dentition. This crescent shape is well suited for grinding fibrous plant material, which is why it appears in deer and cattle, both of which are ruminant herbivores that rely on tough vegetation.

Hypsodont refers to teeth that are high-crowned, which speaks to durability and wear life rather than the shape of the ridges. Brachyodont describes low-crowned teeth, again about crown height rather than ridge pattern. Bunodont teeth have rounded cusps typical of omnivores, not the elongated crescent ridges described here. So the crescent-shaped grinding ridges point to selenodont dentition, matching deer and cattle.