First Ordovician vertebrates from the Southern Hemisphere

A. Ritchie, and J. Gilbert-Tomlinson

1977

Article

Alcheringa 1:351-368

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Taxa discussed in this work:

• Arandaspididae
• Arandaspidiformes
• Arandaspis
• Arandaspis prionotolepis
• Porophoraspis
• Porophoraspis crenulata

Taxonomy:

• Arandaspidiformes belongs to Heterostraci - Ritchie and Gilbert- (1977)