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Goniagnostus (Cryotypus)

Trilobita - Agnostida - Ptychagnostidae

Taxonomy
Criotypus was named by Opik (1979) [Sepkoski's age data: Cm uMid-l Cm uMid-m]. It is not extant.

It was reranked as Goniagnostus (Cryotypus) by Westrop et al. (1996).

It was assigned to Goniagnostus by Westrop et al. (1996); and to Agnostida by Sepkoski (2002).

Synonymy list
YearName and author
1979Criotypus Opik
1996Goniagnostus (Cryotypus) Westrop et al.
2002Criotypus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderAgnostidaSalter 1864
familyPtychagnostidaeKobayashi 1939
genusGoniagnostusHowell 1935
subgenusCryotypus(Opik 1979)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
No diagnoses are available