Falcatidae

Falcatidae; Temporal range: 335–318 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Falcatus specimen in Vienna
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	†Symmoriiformes
Family:	†Falcatidae

Falcatidae is a family of Paleozoic cartilaginous fish belonging to the order Symmoriiformes.^[1] Members of this family include Falcatus, a small fish from the Bear Gulch Limestone of Montana.^[2] The family first appeared around the start of the Carboniferous, and there is some evidence that they survived well into the early Cretaceous,^[3] though its putative Cretaceous members were also argued to be more likely neoselachians.^[4]

Genera

Denaea ^[5]
Falcatus^[2]
Ozarcus?^[6]
Stethacanthulus ^[5]
Cosmoselachus
Cretacladoides? – possible Early Cretaceous (Valanginian) member of the family^[7]

References

^ Coates, M.; Gess, R.; Finarelli, J.; Criswell, K.; Tietjen, K. (2016). "A symmoriiform chondrichthyan braincase and the origin of chimaeroid fishes". Nature. 541 (7636): 208–211. doi:10.1038/nature20806. PMID 28052054. S2CID 4455946.
^ ^a ^b Lund Richard (1985). "The morphology of Falcatus falcatus (St. John and Worthen), a Mississippian stethacanthid chondrichthyan from the Bear Gulch Limestone of Montana". Journal of Vertebrate Paleontology. 5 (1): 1–19. doi:10.1080/02724634.1985.10011842.
^ Guillaume Guinot; Sylvain Adnet; Lionel Cavin; Henri Cappetta (2013). "Cretaceous stem chondrichthyans survived the end-Permian mass extinction". Nature Communications. 4: Article number: 2669. doi:10.1038/ncomms3669. PMID 24169620.
^ Alexander O. Ivanov (2022). "New late Carboniferous chondrichthyans from the European Russia". Bulletin of Geosciences. 97 (2). doi:10.3140/bull.geosci.1845.
^ ^a ^b Ginter, M., Hampe., Duffin, C. 2010. Handbook of Paleoichthyology: Volume 3D- Paleozoic Elasmobranchii teeth. Verlag Dr. Freidrich Pfeil
^ Alan Pradel; John G. Maisey; Paul Tafforeau; Royal H. Mapes; Jon Mallatt (2014). "A Palaeozoic shark with osteichthyan-like branchial arches". Nature. 509 (7502): 608–611. doi:10.1038/nature13195. PMID 24739974. S2CID 3504437.
^ Iris Feichtinger; Andrea Engelbrecht; Alexander Lukeneder; Jürgen Kriwet (2018). "New chondrichthyans characterised by cladodont-like tooth morphologies from the Early Cretaceous of Austria, with remarks on the microstructural diversity of enameloid". Historical Biology: An International Journal of Paleobiology. 32 (6): 1–14. doi:10.1080/08912963.2018.1539971. S2CID 92392461.

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[1] Coates, M.; Gess, R.; Finarelli, J.; Criswell, K.; Tietjen, K. (2016). "A symmoriiform chondrichthyan braincase and the origin of chimaeroid fishes". Nature. 541 (7636): 208–211. doi:10.1038/nature20806. PMID 28052054. S2CID 4455946.

[falcatus-2] Lund Richard (1985). "The morphology of Falcatus falcatus (St. John and Worthen), a Mississippian stethacanthid chondrichthyan from the Bear Gulch Limestone of Montana". Journal of Vertebrate Paleontology. 5 (1): 1–19. doi:10.1080/02724634.1985.10011842.

[france-3] Guillaume Guinot; Sylvain Adnet; Lionel Cavin; Henri Cappetta (2013). "Cretaceous stem chondrichthyans survived the end-Permian mass extinction". Nature Communications. 4: Article number: 2669. doi:10.1038/ncomms3669. PMID 24169620.

[4] Alexander O. Ivanov (2022). "New late Carboniferous chondrichthyans from the European Russia". Bulletin of Geosciences. 97 (2). doi:10.3140/bull.geosci.1845.

[Ginter-5] Ginter, M., Hampe., Duffin, C. 2010. Handbook of Paleoichthyology: Volume 3D- Paleozoic Elasmobranchii teeth. Verlag Dr. Freidrich Pfeil

[ozarcus-6] Alan Pradel; John G. Maisey; Paul Tafforeau; Royal H. Mapes; Jon Mallatt (2014). "A Palaeozoic shark with osteichthyan-like branchial arches". Nature. 509 (7502): 608–611. doi:10.1038/nature13195. PMID 24739974. S2CID 3504437.

[7] Iris Feichtinger; Andrea Engelbrecht; Alexander Lukeneder; Jürgen Kriwet (2018). "New chondrichthyans characterised by cladodont-like tooth morphologies from the Early Cretaceous of Austria, with remarks on the microstructural diversity of enameloid". Historical Biology: An International Journal of Paleobiology. 32 (6): 1–14. doi:10.1080/08912963.2018.1539971. S2CID 92392461.

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