Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Tomagnostus

Trilobita - Agnostida - Ptychagnostidae

Taxonomy
Tomagnostus was named by Howell (1935) [Sepkoski's age data: Cm mMid-u Cm uMid-m Sepkoski's reference number: 80]. It is not extant.

It was assigned to Ptychagnostidae by Whittington et al. (1997); and to Agnostida by Sepkoski (2002).

Species
Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1935Tomagnostus Howell
1997Tomagnostus Whittington et al. p. 354
2002Tomagnostus Sepkoski, Jr.

Is something missing? Join the Paleobiology Database and enter the data

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

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