Emu_skulls.png

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Comparison of the cranium contour in modern and King Island Emu.

Several (partial) skulls from modern Emu are shown at different stages in their development: A – Adult, B – Immature-Adult, C – Juvenile. Two partial skulls are shown for the King Island Emu D & E [8]. The black lines indicate the contour of the upper/rear surface of the cranium. The adult and immature-adult modern Emu show a frontally flattened cranium, whereas King Island Emu show a more dome shaped cranium. Initially this difference was considered a species level difference, but juvenile modern emu show the same dome shaped cranium in both taxa and therefore appears not to be taxonomically significant.
Date and 1906
Source http://www.plosone.org/article/info:doi/10.1371/journal.pone.0018728
Author Tim H. Heupink, Leon Huynen, David M. Lambert
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