A wavy crest externally on the tympanic bone of cetaceans. [ http://palaeos.com/vertebrates/glossary/glossaryS.html ]
Synonyms: sigmoid process sigmoid process of auditory bulla
This is just here as a test because I lose it
A wavy crest externally on the tympanic bone of cetaceans. [ http://palaeos.com/vertebrates/glossary/glossaryS.html ]
Synonyms: sigmoid process sigmoid process of auditory bulla