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Location Australia
Comments Pituriaspids are mainly known by Pituriaspis, from the Devonian of Australia. As a whole, their headshield is quite similar to that of osteostracans, though devoid of a naso-hypophysial opening. The mouth, gill openings and presumably the nasal aperture were all situated on the ventral side of the head. Well-developed paired fins attached on either sides of the headshield. The only diagnostic feature of pituriaspids is an enigmatic pit adjacent to the eyes.
Reference based on Young, G. C. (1991). The first armoured agnathan vertebrates from the Devonian of Australia. In Early vertebrates and related problems of evolutionary biology (ed. M. M. Chang, Y. H. Liu, and G. R. Zhang), pp. 67-85. Science Press, Beijing.
Specimen Condition Fossil -- Period: Devonian
Image Use creative commons This media file is licensed under the Creative Commons Attribution License - Version 3.0.
Copyright © 1997
Title pituriaspida.gif
Image Type Drawing/Painting
Image Content Specimen(s)
ID 4380
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