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Summary
DescriptionAstraspis desiderata.png |
English: Astraspis desiderata. Astraspids are still poorly known. But recent discoveries of partially complete specimens of Astraspis desiderata, from the——Ordovician of Colorado, "have considerably increased their knowledge." Their dorsal headshield is made up by, "large," polygonal bone units. And the "gill openings are situated more dorsally than in arandaspids." |
Date | |
Source | http://tolweb.org/Astraspida/16906 |
Author | Philippe Janvier |
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22 January 2009, 13:35:32 | 354 × 250 (36834 bytes) | Haplochromis (talk · contribs) | {{Information |Description={{en|1=''Astraspis desiderata''. Astraspids are still poorly known but recent discoveries of partially complete specimens of Astraspis desiderata, from the Ordovician of Colorado, have considerably increased their knowledge. The |
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current | 14:28, 18 August 2014 | ![]() | 354 × 250 (38 KB) | GifTagger | Bot: Converting file to superior PNG file. (Source: Astraspis_desiderata.gif). This GIF was problematic due to transparency and "non-greyscale color table." |
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- Acanthodiformes
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