Nielsenia

Nielsenia Temporal range:
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Dipnoi
Family:	†Phaneropleuridae
Genus:	† Lehman, 1959
Type species
†Nielsenia nordica Lehman, 1959

Nielsenia is an extinct genus of prehistoric lungfish which lived during the Devonian period in what is now Greenland. It is named after Eigil Nielsen.^[1]

References

^ Lehman, Jean Pierre (1959). "Les dipneustes du Dévonien supérieur du Groenland". Meddelelser om Grønland (in French). 160: 1–58.

Kingdom: Animalia
Phylum: Chordata
Clade: Osteichthyes
Clade: Sarcopterygii
Clade: Rhipidistia

see Gnathostomata
Dipnomorpha	see below↓

Dipnomorpha

†Arquatichthys †Powichthys
†Porolepiformes	Duffichthys Durialepis Glyptolepis Hamodus Heimenia Holoptychius Laccognathus Porolepis Pseudosauripterus Quebecius Ventalepis

†Ctenodus †Conchopoma †Diabolepis †Dianodipterus †Eoctenodus †Gosfordia †Ichnomylax †Iranorhynchus †Isityumzi †Janvierpaucidentes †Megapleuron †Oervigia †Orlovichthys †Proceratodus †Rhinodipterus †Sagenodus †Straitonia †Tarachomylax †Tranodis †Westollrhynchus †Youngolepis
†Uranolophidae	Melanognathus Uranolophus
†Dipnorhynchidae	Dipnorhynchus Ganorhynchus Speonesydrion
†Stomiahykidae	Archaeonectes Stomiahykus
†Chirodipteridae	Chirodipterus Gogodipterus Palaedaphus Pillararhynchus Sorbitorhynchus Sunwapta
†Holodontidae	Asthenorhynchus Griphognathus Holodipterus Iowadipterus Robinsondipterus Xeradipterus
†Dipteridae	Amadeodipterus Conchodus Dipterus Howidipterus
†Fleurantiidae	Barwickia Fleurantia
†Rhynchodipteridae	Rhynchodipterus Soederberghia
†Phaneropleuridae	Andreyevichthys Phaneropleuron Pentlandia Scaumenacia
†Uronemidae	Ganopristodus Uronemus

Ceratodontoidei

†Ferganoceratodus †Paraceratodus †Ptychoceratodus
Neoceratodontidae	†Archaeoceratodus †Asiatoceratodus †Mioceratodus Neoceratodus
†Ceratodontidae	Arganodus Ariguna Ceratodus Epiceratodus Lupaceratodus Metaceratodus Microceratodus? Potamoceratodus Retodus Tellerodus
†Gnathorhizidae	Beltanodus Gnathorhiza Microceratodus? Monongahela Namatozodia Palaeophichthys? Persephonichthys
Lepidosirenidae	Lepidosiren Protopterus

Retodus tuberculatus