Thick, containing rolled fossil bones, cetacean and fish teeth, and shells of the Crag period, with nodules or pebbles of phosphatic matter derived from the London Clay, and often investing fossils from that formation.
"It is pretty rare to have the opportunity to name a new cetacean species," study co-author Howard Rosenbaum, of the Wildlife Conservation Society, wrote in an email to Live Science
cetacean הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד