Birkeniiformes (Birkeniida or Birkeniids) is an extinct order of jawless fish belonging to the class

Anaspida Anaspida ("without shield") is an extinct group of primitive jawless vertebrates that lived primarily during the Silurian period, and became extinct soon after the start of the Devonian. They were classically regarded as the ancestors of lampre ...

Subtaxa

A newer taxonomy based on the work of Mikko's Phylogeny Archive, Nelson, Grande and Wilson 2016 and van der Laan 2018. * Genus †'' Cowielepis'' Blom 2008 * Genus †'' Hoburgilepis'' Blom, Märss & Miller 2002 * Genus †'' Kerreralepis'' Blom

2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...

* Genus †'' Maurylepis'' Blom, Märss & Miller 2002 * Genus †'' Rytidolepis'' Pander 1856 * Genus †'' Schidiosteus'' Pander 1856 * Genus †'' Silmalepis'' Blom, Märss & Miller 2002 * Genus †'' Vesikulepis'' Blom, Märss & Miller 2002 * Family † Pharyngolepididae Kiær 1924 corrig. ** Genus †'' Pharyngolepis'' Kiaer 1911 * Family † Pterygolepididae Obručhev 1964 corrig. ** Genus †'' Pterygolepis'' Cossmann 1920 'Pterolepis'' Kiaer 1911 non Rambur 1838 non De Candolle ex Miquel 1840; ''Pterolepidops'' Fowler 1947 * Family † Rhyncholepididae Kiær 1924 corrig. ** Genus †''

Rhyncholepis ''Rhyncholepis'' is an extinct genus of anaspida from the Late Silurian. It was 26 cm long. Fossils have been found in southern Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country in Northern E ...

'' Kiær 1911 non Miquel 1843 non Nuttall 1841 * Family † Tahulalepididae Blom, Märss & Miller 2002 ** Genus †'' Tahulalepis'' Blom, Märss & Miller 2002 ** Genus †'' Trimpleylepis'' Miller, Märss & Blom 2004 * Family † Lasaniidae Goodrich 1909 ** Genus †''

Lasanius ''Lasanius'' is a genus of basal anaspida from the Early Silurian. Its fossils are around 10 mm to 150 mm in length. Fossils have been found in Early Silurian-aged strata in Ayrshire, Muirkirk, Scotland Scotland (, ) is a ...

'' Traquair 1898 * Family † Ramsaasalepididae Blom, Märss & Miller 2003 ** Genus †'' Ramsaasalepis'' Blom, Märss & Miller 2003 * Family † Birkeniidae Traquair 1899 ** Genus ?†'' Vilkitskilepis'' Märss 2002 ** Genus †'' Ctenopleuron'' Matthew 1907 ** Genus †'' Saarolepis'' Robertson 1945 'Anaspis'' Robertson 1941 non Geoffroy 1762 non Thomson 1893** Genus †'' Birkenia'' Traquair 1898 * Family † Septentrioniidae Blom, Märss & Miller 2002 ** Genus †'' Liivilepis'' Blom, Märss & Miller 2002 ** Genus †'' Manbrookia'' Blom, Märss & Miller 2002 ** Genus †'' Ruhnulepis'' Blom, Märss & Miller 2002 ** Genus †'' Spokoinolepis'' Blom, Märss & Miller 2002 ** Genus †'' Septentrionia'' Blom, Märss & Miller 2002

References

* System der rezenten und fossilen Fischartigen und Fische. LS Berg, 1958

External links

* Prehistoric jawless fish orders {{paleo-jawless-fish-stub