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| Ramsaasalepis Temporal range: Upper Silurian PreꞒ Ꞓ O S D C P T J K Pg N | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Anaspida |
| Order: | †Birkeniiformes |
| Family: | †Ramsaasalepididae Blom, Märss & Miller, 2002 |
| Genus: | †Ramsaasalepis Blom, Märss & Miller, 2002 |
| Species | |
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†Ramsaasalepis porosa Blom et al., 2002 (type) | |
Ramsaasalepis is an extinct genus of jawless fish. It is the type and the only known genus of the family Ramsaasalepididae, one of many families of prehistoric jawless fish, and contains the single species Ramsaasalepis porosa.
It was described based on a number of fossilized, disarticulated thelodont scales that may have had a ridged texture. The species had a well-developed vascular canal system. Based on these characteristics and its stratigraphical range, is speculated to be most closely related to the genera Septentrionia and Tahulalepis.
Ramsaasalepis lived during the Silurian period. Competition with recently evolved jawed fish has been suggested as a reason for the extinction of this and many other jawless fish species. It probably was a filter feeder.
References
- ^ Henning Blom; Tiiu MärssTallinn; C. Giles Miller (2003). "A new birkeniid anaspid from the Upper Silurian of Skåne, south Sweden". GFF. 125 (2): 57–61. Bibcode:2003GFF...125...57B. doi:10.1080/11035890301252057. S2CID 129645520.
External links
Data related to Ramsaasalepis at Wikispecies
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| Taxon identifiers | |
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| Ramsaasalepis | |
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