Dalmanitoidea
{{Short description|Extinct superfamily of trilobites}}
{{Automatic taxobox
| image = SilurianTrilobite.jpg
| image_caption = Dalmanites limulurus
| taxon = Dalmanitoidea
| authority = Vogdes, 1890
| subdivision_ranks = Families
| subdivision =
}}
Dalmanitoidea is a superfamily of trilobites in the order Phacopida, containing the three families Dalmanitidae, Diaphanometopidae and Prosopiscidae.{{cite web |url=http://www.trilobites.info/ordphacopida.htm |title=Order Phacopida |author=S. M. Gon III |accessdate=January 11, 2011}}