Источник: Источник: Aleksander Wysocki, Robert S. Feranec et al (2015). Using a Novel Absolute Ontogenetic Age Determination Technique to Calculate the Timing of Tooth Eruption in the Saber-Toothed Cat, Smilodon fatalis // <a href="http://journals.plos.org/plosone/

Источник: http://arzamas.academy/materials/158