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

Crepicephalus thoosa

Trilobita - Ptychopariida - Crepicephalidae

Taxonomy
Crepicephalus thoosa was named by Walcott (1916) [Lochman (1940) re-ided specimens from 1a & 1a' as Tricrepicephalus walcotti (Lochman 1936).].

Synonymy list
YearName and author
1916Crepicephalus thoosa Walcott pp. 214 - 215 figs. pl. 31 f. 1b-k, not 1a

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

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
Life
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyCrepicephalidae
genusCrepicephalusOwen 1852
speciesthoosa

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.

Crepicephalus thoosa Walcott 1916
show all | hide all
Diagnosis
No diagnoses are available