File:Eucentrosauran Skulls From The Campanian Two Medicine Formation.jpg
Lateral views of articulated crania of subadult eucentrosaurans from the Campanian Two Medicine Formation, Montana, USA. A. Einiosaurus
procurvicornis Sampson, 1995, MOR 456 8-8-87-1. B. Eucentrosauran (Einiosaurus procurvicornis or Achelousaurus horneri Sampson, 1995), MOR
591. Photographs (A1 and B1), osteological line drawings (A2, B2). Face of MOR 591 mirrored, with parietosquamosal frill superimposed. The contact
outlines between the postorbital, jugal, and squamosal in A2 are estimated due to lack of externally visible sutures and may appear different from MOR
591 due to some breaks and gaps. P4–P7, parietal processes.
Date
Source
https://www.app.pan.pl/article/item/app007972020.html
Author
John P. Wilson and John B. Scannella
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