| Auchenaspis Temporal range: 443.7–416.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N Silurian | |
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| Fossils at National Museum of Natural History, Paris | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Osteostraci |
| Order: | Thyestiida |
| Genus: | Auchenaspis Egerton 1857 |
Auchenaspis salteri is an extinct species of armored jawless fish of the order Thyestiida from the Late Silurian of England. In England, A. salteri's fossils are found in extreme abundance in the Lower Old Red Sandstone strata in Ledbury, Herefordshire.
A. salteri strongly resembles the thyestiids Procephalaspis and Thyestes, and within Thyestiida, it represents a transitional form between the primitive, superficially Cephalaspis-like forms, such as Thyestes, and the more specialized tremataspid thyestiids, like Tremataspis, Dartmuthia, or Dobraspis, whose headshields tend to resemble hot buns or horseshoe crabs.
References
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on July 23, 2011. Retrieved 2007-12-20.
- "The Paleobiology Database". Archived from the original on 2011-07-18. Retrieved 2010-03-13.
- Symonds, W. S. (1860). "On the Passage-beds from the Upper Silurian Rocks into the Lower Old Red Sandstone, at Ledbury, Herefordshire". Quarterly Journal of the Geological Society. 16 (1–2): 193–197. doi:10.1144/GSL.JGS.1860.016.01-02.26. S2CID 130396486.
- Sansom, R. (2007). "A Review of the Problematic Osteostracan Genus Auchenaspis and Its Role in Thyestidian Evolution". Palaeontology. 50 (4): 1001–1011. Bibcode:2007Palgy..50.1001S. doi:10.1111/j.1475-4983.2007.00686.x.
| Taxon identifiers | |
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| Aachenaspis | |
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