![Prionochelys matutina Zangerl, 1953 (Testudines: Pan-Cheloniidae) from the Late Cretaceous of the United States and the evolution of epithecal ossifications in marine turtles [PeerJ] Prionochelys matutina Zangerl, 1953 (Testudines: Pan-Cheloniidae) from the Late Cretaceous of the United States and the evolution of epithecal ossifications in marine turtles [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2018/5876/1/fig-9-full.png)
Prionochelys matutina Zangerl, 1953 (Testudines: Pan-Cheloniidae) from the Late Cretaceous of the United States and the evolution of epithecal ossifications in marine turtles [PeerJ],

Detailed morphology of tentacular apparatus and central nervous system in Owenia borealis (Annelida, Oweniidae) | Zoological Letters | Full Text,

Detailed morphology of tentacular apparatus and central nervous system in Owenia borealis (Annelida, Oweniidae) | Zoological Letters | Full Text,

Detailed morphology of tentacular apparatus and central nervous system in Owenia borealis (Annelida, Oweniidae) | Zoological Letters | Full Text,
![Prionochelys matutina Zangerl, 1953 (Testudines: Pan-Cheloniidae) from the Late Cretaceous of the United States and the evolution of epithecal ossifications in marine turtles [PeerJ] Prionochelys matutina Zangerl, 1953 (Testudines: Pan-Cheloniidae) from the Late Cretaceous of the United States and the evolution of epithecal ossifications in marine turtles [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2018/5876/1/fig-4-2x.jpg)
Prionochelys matutina Zangerl, 1953 (Testudines: Pan-Cheloniidae) from the Late Cretaceous of the United States and the evolution of epithecal ossifications in marine turtles [PeerJ],