Palate structure and condition of the premolar foramen in juvenile extant lagomorphs.

<p>A. <i>Ochotona pallasi</i> (AMNH 59780), note well-developed premolar foramina (pf, red arrows) medial to the DP3/DP4 septum, and small multiple palatine foramina (palf, grey arrows) characteristic for <i>Ochotona</i>. B. <i>Sylvilagus palustris</i> (AMNH 253183) with well-developed premolar foramina (pf, red arrows) medial to the DP3/DP4 septum, matching in size the major palatine foramina (mpaf, grey arrows), note minute accessory nutritive foramina near the DP3 (small black arrows) and a slight asymmetry in the position of premolar foramina. C. <i>Brachylagus idahoensis</i> (AMNH 140865), note a minute foramen medial to the DP3 (pf, red arrow) and a pair of large palatine foramina (mpaf, grey arrows).