Skip to main content
. Author manuscript; available in PMC: 2017 Jul 31.
Published in final edited form as: Nature. 2015 Jan 12;520(7545):82–85. doi: 10.1038/nature14065

Extended Data Figure 4. Janusiscus lacks endochondral ossification.

Extended Data Figure 4

a, The actinopterygian Kentuckia deani MCZ 5226, tomographs showing extensive and well-developed endochondral ossification in both the sphenoid (top) and otic (bottom) regions. Bright white objects in both panels are voids within spongy endochodral bone that have been diagenetically infilled with dense (likely iron) minerals. b, Janusiscus schultzei n. gen et sp. nov. GIT 496-6 [Pi.1384], tomographs showing lack of obvious endochondral ossification in either the sphenoid (top) or otic (bottom) regions. There is also no visual indication of endochondral bone in a break across the ethmoid region of this same specimen.