Definition of Osteostracan. Meaning of Osteostracan. Synonyms of Osteostracan

Here you will find one or more explanations in English for the word Osteostracan. Also in the bottom left of the page several parts of wikipedia pages related to the word Osteostracan and, of course, Osteostracan synonyms and on the right images related to the word Osteostracan.

Definition of Osteostracan

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Meaning of Osteostracan from wikipedia

- from the Middle Silurian to Late Devonian. Anatomically speaking, the osteostracans, especially the Devonian species, were among the most advanced of all...
- Gr****: ἀσπίς aspís, 'shield') is a possibly monotypic genus of extinct osteostracan agnathan vertebrate. It was a trout-sized detritivorous fish that lived...
- Benneviaspidida is an order of osteostracan jawless fishes which lived in the Early Devonian. The fishes in this order have a flat headshield and are dorsoventrally...
- Keating, Joseph N.; Sansom, Robert S.; Purnell, Mark A. (2012). "A new osteostracan fauna from the Devonian of the Welsh Borderlands and observations on...
- most do have a dorsal or a caudal fin. Some fossil agnathans, such as osteostracans and pituriaspids, did have paired fins, a trait inherited in their jawed...
- Cephalaspidomorphs are a superclass of jawless fishes named for Cephalaspis of the osteostracans. Most biologists regard this taxon as extinct, but the name is sometimes...
- Zenaspidida is an extinct order of osteostracans, a group of jawless stem-gnathostomes. They possessed a distinct headshield, which varied in width to...
- Boreaspis (meaning "Boreas's Shield") is an extinct genus of osteostracan agnathan vertebrate that lived in the Devonian period. Fourteen different species...
- displacement, and sound. The presence of these extrinsic grains in osteostracans, chondrichthyans, and acanthodians indicates a common inner ear physiology...
- Thyestes is an extinct genus of osteostracan agnathan vertebrate of Europe whose fossils are found in Middle to Late Ludlow-aged marine strata of Late...