archaeoceteとは 意味・読み方・使い方

名詞

archaeocete ‎(複数形 archaeocetes)

1. Any extinct cetacean of the parvorder Archaeoceti
   • 2015 November 19, “Bone-Eating Worms Spread: Insights into Shallow-Water Osedax (Annelida, Siboglinidae) from Antarctic, Subantarctic, and Mediterranean Waters”, in PLOS ONE^[1], DOI:10.1371/journal.pone.0140341:

     Our estimates further show that the most recent common ancestor of extant Osedax appeared during the Late Cretaceous (ca. 74.8 Ma), indicating that the radiation of Osedax would be concomitant with the occurrence of large marine reptiles and teleost fishes in the oceans [56 , 57 ] rather than with the origin and radiation of large archaeocete cetaceans during the Eocene (ca. 50 Ma; [58 ]).