Quick notes a new species of the rares group whales, the kogiids

Kogiidae is a monogeneric family which only contains two living species, K. breviceps and K. sima in the genus Kogia. Velez-Juarbe & al. describe a new species and genus from the late Pliocene of Panama, Nanokogia isthmia, and suggest that:

  • Reduction of the spermaceti organ has occurred iteratively in kogiids.
  • Extant kogiids diverged around the late Pliocene (later than previously thought).
  • Late Pliocene kogiids were morphologically more diverse than extant ones, which could be due to feeding habits.

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