Griphognathus

Griphognathus Temporal range: Late Devonian
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Class:	Dipnoi
Family:	†Holodontidae
Genus:	†Griphognathus

Griphognathus (from Greek: γρίφος grífos 'riddle') and Greek: γνάθος gnáthos 'jaw') is an extinct genus of lungfish from the late Devonian period of Europe and Australia.

Griphognathus was a specialized lungfish, about 60 centimetres (24 in) long, with an elongated snout. The lower jaw and palate were lined with tooth-like denticles. Like all other lungfish, its skin was covered by overlapping scales, and it had an asymmetrical tail.^[1]

Species

• Griphognathus whitei

References

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Dipnomorpha

Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Sarcopterygii Clade: Rhipidistia
Gnathostomata see Gnathostomata Dipnomorpha see below↓ Dipnomorpha

Dipnomorpha	†Arquatichthys †Powichthys †Youngolepis? †Porolepiformes Durialepis Hamodus Heimenia Porolepis Quebecius Holoptychiidae Duffichthys? Glyptolepis Holoptychius Laccognathus Pseudosauripterus Ventalepis? Dipnoi †Ctenodus †Conchopoma †Diabolepis †Dianodipterus †Eoctenodus †Gosfordia †Ichnomylax †Iranorhynchus †Isityumzi †Janvierpaucidentes †Megapleuron †Oervigia †Orlovichthys †Powichthys? †Proceratodus †Rhinodipterus †Sagenodus †Straitonia †Tarachomylax †Tranodis †Westollrhynchus †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 Nielsenia 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

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