Strunius

Strunius Temporal range: Late Devonian
Restoration of S. rolandi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Order:	†Onychodontiformes
Family:	†Onychodontidae (?)
Genus:	†Strunius Jessen, 1966
Type species
†Strunius rolandi Jessen, 1966

Strunius is an extinct genus of lobe-finned fish from the Late Devonian period of Germany and Latvia.^[1]

Although it was a lobe-finned fish, Strunius' fins were supported by fin rays, which are more associated with ray-finned fish. However, its skull was composed of two articulating halves, a feature characteristic of the lobe-finned rhipidistians. The skull was also divided by a deep articulation, with both halves probably connected by a large muscle, increasing the power of the bite.^[2] The same system is seen in coelacanths and the better-known Eusthenopteron.

Compared to other lobe-finned fishes, Strunius had a rather short, stubby body, and was just 10 centimetres (4 in) long. It was covered in large, round, bony scales, and probably fed on other fishes.^[2]

References

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Actinistia

Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Sarcopterygii
Gnathostomata see Gnathostomata Actinistia see below↓ Actinistia

Actinistia sensu lato	†Styloichthys? †"Onychodontiformes" Bukkanodus Grossius Luckeus Onychodus Qingmenodus Selenodus Strunius Actinistia sensu stricto †Eoactinistia †Euporosteus †Hainbergia †Nesides †Scleracanthus †Shoshonia †Styloichthys? †Youngichthys †Youngolepis? †Miguashaiidae Gavinia Miguashaia †Diplocercidae Chagrinia Dictyonosteus Diplocercides Serenichthys †Hadronectoridae Allenypterus Hadronector Holopterygius Lochmocercus Polyosteorhynchus †Rhabdodermatidae Caridosuctor Coelacanthopsis? Dumfregia Rhabdoderma Sassenia Spermatodus Synaptotylus †Laugiidae Belemnocerca Coccoderma Laugia Trachymetopon Coelacanthiformes †Coelacanthopsis? †Dobrogeria †Heptanema †Luopingcoelacanthus †Rebellatrix †Sinocoelacanthus †Yunnancoelacanthus †Coelacanthidae Axelia Chaohuichthys Coelacanthus Graphiuricthys Indocoelacanthus Moenkopia Mylacanthus Quayia Wimania †Whiteiidae Atacamaia Guizhoucoelacanthus Piveteauia Whiteia Latimerioidei †Garnbergia †Mawsoniidae Alcoveria Axelrodichthys Changxingia Chinlea Diplurus Lualabaea Mawsonia Parnaibaia Rhipis Latimeriidae †Foreyia †Holophagus Latimeria †Libys †Macropoma †Macropomoides †Megalocoelacanthus †Rieppelia †Swenzia †Ticinepomis †Undina

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