A new article I'm grateful to have collaborated on!
Evidence from foramina, histology, and allometry supports the presence of extraoral tissues in Triassic archosauromorphs, suggesting that lipped jaws may represent the ancestral sauropsid condition 🦕
doi.org/10.1111/pala...
doi.org
Inferred presence of extraoral tissues in Triassic archosauromorphs and the evolutionary implications for the clade Sauropsida
Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina ....