Acanthodus

Acanthodus; Temporal range: Late Cambrian–Early Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
	W: Acanthodus uncinatus Furnish; lateral view of non-serrate suberectiform element, from upper part of middle Gasconade Dolomites at Phillips Quarry, X 50, USNM 498518.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Conodonta
Order:	†Protopanderodontida
Family:	†Acanthodontidae
Genus:	†Acanthodus; Furnish, 1938
Species
	†Acanthodus costatus; †Acanthodus humachensis; †Acanthodus raqueli; †Acanthodus uncinatus;

Acanthodus is an extinct genus of conodonts.

Acanthodus humachensis and A. raqueli are from then Late Cambrian (late Furongian) or early Ordovician (Tremadocian) of the Santa Rosita Formation in Argentina.^[2]

References

^ Conodonts from the Prairie du Chien (Lower Ordovician) beds of the upper Mississippi valley. WM Furnish, Journal of Paleontology, volume 12, No. 4, July 1938, pages 318-340 (Stable URL)
^ New conodont species and biostratigraphy of the Santa Rosita Formation (upper Furongian–Tremadocian) in the Tilcara Range, Cordillera Oriental of Jujuy, Argentina. Fernando J. Zeballo and Guillermo L. Albanesi, Geological Journal, 2013, volume 48, issue 2–3, pages 170–193, doi:10.1002/gj.2425

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Acanthodus Temporal range: Late Cambrian–Early Ordovician PreꞒ Ꞓ O S D C P T J K Pg N

W: Acanthodus uncinatus Furnish; lateral view of non-serrate suberectiform element, from upper part of middle Gasconade Dolomites at Phillips Quarry, X 50, USNM 498518.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Conodonta
Order:	†Protopanderodontida
Family:	†Acanthodontidae
Genus:	†Acanthodus Furnish, 1938^[1]
Species
†Acanthodus costatus †Acanthodus humachensis †Acanthodus raqueli †Acanthodus uncinatus