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Birkeniidae had a large body which was ovular in shape, and a strong, mobile tail. Their eyes were positioned on either side of the head. Their mouth was large for the jawless fish, but contained no teeth. Birkeniidae are distinguished by the crown shaped projection on their back, and the other
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Traquair, R.H. 1899. Report on fossil fishes collected by the
Geological Survey of Scotland in the Silurian rocks of the south of Scotland. Transactions of the Royal Society Edinburgh, 39: 827-864.
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smaller projections which run down its tail. They also possessed fins which faced downwards, an uncommon trait among the jawless fish. They had typical scaly skin.
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is an extinct family of jawless fish belonging to the order
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16:Extinct family of jawless fishes
846:Prehistoric jawless fish stubs
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789:. You can help Knowledge by
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783:prehistoric jawless fish
781:This article about a
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38:Fossil and model of
194:Procephalaspididae
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24:Birkeniidae
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700:Birkeniidae
694:Wikispecies
670:Birkeniidae
605:Euphanerops
584:Achanarella
478:Vesikulepis
457:Rytidolepis
407:Birkeniidae
389:Tahulalepis
316:Subphylum:
257:Birkeniidae
206:Birkeniidae
126:Birkeniidae
830:Categories
563:Cyclostomi
505:Manbrookia
498:Liivilepis
471:Silmalepis
443:Maurylepis
382:Ruhnulepis
347:Cowielepis
318:Vertebrata
225:References
216:Morphology
162:Saarolepis
685:Q22103233
549:Jamoytius
304:Kingdom:
73:Kingdom:
67:Eukaryota
836:Anaspida
679:Wikidata
645:Category
591:Ciderius
556:Lasanius
416:Birkenia
333:Anaspida
312:Chordata
310:Phylum:
306:Animalia
294:Anaspida
180:Synonyms
146:Birkenia
119:Family:
100:Anaspida
87:Chordata
83:Phylum:
77:Animalia
63:Domain:
41:Birkenia
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714:3237894
136:Genera
106:Order:
93:Class:
43:elegans
753:304817
727:101797
785:is a
722:IRMNG
787:stub
709:GBIF
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