This cetacean belongs to the Physeteridae family, the same family that includes the common sperm whale (Physeter macrocephalus). However, Zygophyseter varolai has some distinctive characteristics that make it stand out.
A notable feature of Zygophyseter varolai is its elongated lower jaw, which has large, curved teeth at the front, and smaller, straight teeth at the back. This arrangement of teeth suggests a specialized adaptation for capturing prey, possibly fish and squid. The shape of the jaw of Zygophyseter varolai has led to some interpretations that this prehistoric sperm whale may have had a more active role in hunting than modern sperm whales.
Additionally, Zygophyseter varolai features a bulb-shaped structure at the front of the skull, which is believed to be associated with echolocation. Echolocation is a sonar system that some cetaceans use to navigate and detect prey in their aquatic environment. The presence of this structure in Zygophyseter varolai suggests that it may also have used echolocation, although the exact extent of this ability compared to modern sperm whales is not fully understood.
The specific name, "varolai", refers to the Turkish paleontologist Haluk Ömer Varol, who has contributed significantly to the study of fossil cetaceans. Fossils of Zygophyseter varolai have been found in several locations around the Mediterranean.
Approximate measurements of the Zygophyseter:
- Scale 1:35
- Length 133mm
- Height 42mm
- Snout-tail length 148 mm
- Scale 1:20
- Length 190mm
- Height 56mm
- Snout-tail length 215 mm