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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Synchrotron imaging of dentition provides insights into the biology of Hesperornis and Ichthyornis, the “last” toothed birds

Fig. 4

Synchrotron x-ray microtomographic views of the studied teeth of Aves and other, theropod taxa from the Late Cretaceous. a TMP 1986.030.0039, tooth crown. b TMP 1986.052.0054, tooth crown with small apical part of root preserved. c TMP 1994.031.0032, tooth crown with broken tip. d TMP 1996.012.0040, tooth with crown and two thirds of root (broken). e TMP 1989.103.0025, tooth with crown and most of root preserved (broken). Whole views are, from left to right, in a and c: labial, mesial, lingual and distal; in b, d and e: lingual, mesial, labial and distal. Magnified views show the diverse shapes and densities of serrations of the distal carina in a, c and e. wf, wear facet. All synchrotron x-ray microtomography external views. Scale bars, 0.25 mm

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BMC Ecology and Evolution

ISSN: 2730-7182

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