| Bolivosteus Temporal range: Eifelian
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| Genus: | Bolivosteus
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| Species: | B. chacomensis
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| Binomial name | |
| Bolivosteus chacomensis Goujet, Janvier & Suarez-Riglos, 1986
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Bolivosteus chacomensis is a rhenanid placoderm from the Eifelian of Bolivia, and is the only placoderm known from the “Malvinokaffric” invertebrate faunas. The Malvinokaffric faunas represent a series of cold-water ecosystems near or at the South Pole during the Middle Devonian, and apparently lacked the presence of ammonoids, bryozoa, or colonial corals.[1] B. chacomensis is known from skull fragments and scales.
- ^ Janvier, Phillipe (2007). THE DEVONIAN VERTEBRATES OF SOUTH AMERICA: MALVINOKAFFRIC FISHES AND GONDWANA-EURAMERICA FAUNAL INTERCHANGE (PDF). 4th European Meeting of the Palaeontology and Stratigraphy of Latin America. Cuadernos del Museo Geominero. Vol. 8. pp. 223–227. Archived from the original (PDF) on 2012-09-05. Retrieved 2013-04-17.