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Angustidontidae Temporal range: Frasnian-Early Carboniferous, 380–340 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Reconstruction of Angustidontus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	†Angustidontida Gueriau, Charbonnier & Clément, 2014
Family:	†Angustidontidae Cooper, 1936
Genera
†Angustidontus †Schramidontus

Angustidontidae is an extinct family of eucarid crustaceans and the sole representatives of the order Angustidontida. They were predators ranging in size from about 4 to 9 cm (1.6 to 3.5 in) in length and lived during the Late Devonian and Early Carboniferous periods.

They were some of the earliest Eucarids to develop maxillipeds, modified from the first or second thoracopods. They were originally considered eurypterids, but later their possible relationship with decapods was established.

References

1. ^ Gueriau, Pierre; Charbonnier, Sylvain; Clément, Gaël (2014-09-01). "Angustidontid crustaceans from the Late Devonian of Strud (Namur Province, Belgium): Insights into the origin of Decapoda". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 273 (3): 327–337. doi:10.1127/0077-7749/2014/0434.
2. T. A. Hegna, J. Luque, and J. A. Wolfe (2020). The fossil record of the Pancrustacea. In M. Thiel, G. C. B. Poore (eds.). Evolution and Biogeography of the Crustacea. Vol. 8. Oxford University Press. p. 21-52. Archived (PDF) from the original on June 25, 2021.{{cite book}}: CS1 maint: multiple names: authors list (link)

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