Glyptolepis (fish)
| Glyptolepis Temporal range:
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|---|---|
| Glyptolepis fossil from the Naturhistorisches Museum Wien | |
| Glyptolepis reconstruction | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | †Porolepiformes |
| Family: | †Holoptychiidae |
| Genus: | †Glyptolepis Agassiz, 1843 |
| Type species | |
| †Glyptolepis leptopterus Agassiz, 1844
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| Species | |
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See text | |
Glyptolepis is an extinct genus of freshwater porolepiform lobe-finned fish which lived during Devonian Period, from the early Eifelian to the Givetian Age.
The following species are known:
- †G. baltica Gross, 1936 - Givetian of Latvia (Lode Formation)
- †G. groenlandica Jarvik, 1972 - Eifelian of Greenland (Nathorst Fjord Formation)
- †G. leptopterus Agassiz, 1844 (type species) - Eifelian of Scotland (Old Red Sandstone), including Orkney Isles (=G. elegans Agassiz, 1844)
- †G. paucidens (Agassiz, 1844) - Eifelian of Scotland (Old Red Sandstone), including Orkney Isles
The former species G. microlepidotus is now placed in its own genus, Gyroptychius, as is G. quebecensis, now placed in Quebecius.
Glyptolepis is considered a stem lungfish, and its pectoral fins especially resemble those of the extant lungfish Neoceratodus.
G. groenlandica has a three-dimensionally preserved skull, for which the morphology of the braincase and the endocast is relatively well-known, among the best of any porolepiforms.