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

Trilobitomorpha

Taxonomy
Trilobitomorpha was named as a subphylum. It is not extant.

It was reranked as the superclass Trilobitomorpha by Mayers et al. (2019), Lerosey-Aubril et al. (2020); it was reranked as the unranked clade Trilobitomorpha by Ortega-Hernandez et al. (2013), Losso et al. (2025).

It was assigned to Artiopoda by Ortega-Hernandez et al. (2013); to Artiopoda by Mayers et al. (2019), Lerosey-Aubril et al. (2020); and to Artiopoda by Losso et al. (2025).

Synonymy list
YearName and author
2013Trilobitomorpha Ortega-Hernandez et al. p. 38 fig. 6a
2019Trilobitomorpha Mayers et al. p. 36
2020Trilobitomorpha Lerosey-Aubril et al. p. 515
2025Trilobitomorpha Losso et al. p. 4

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

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
RankNameAuthor
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
superclassTrilobitomorpha
superclassTrilobitomorpha

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.

Supercl. †Trilobitomorpha
show all | hide all
Or. †Nektaspidida Raymond 1920
hide
G. †Buenaspis Budd 1999
hide
†Buenaspis forteyi Budd 1999
Fm. †Emucarididae Paterson et al. 2010
hide
G. †Emucaris Paterson et al. 2010
+
†Emucaris fava Paterson et al. 2010
G. †Kangacaris Paterson et al. 2010
+
†Kangacaris zhangi Paterson et al. 2010
Fm. †Naraoiidae Walcott 1912
hide
Subfm. †Liwiinae Dzik and Lendzion 1988
+
G. †Liwia Dzik and Lendzion 1988
+
†Liwia convexa Lendzion 1975
†Liwia plana Lendzion 1975
G. †Soomaspis Fortey and Theron 1995
G. †Tariccoia Hammann et al. 1990
+
†Tariccoia arrusensis Hammann et al. 1990
†Tariccoia tazagurtensis Pérez-Peris et al. 2020
G. †Misszhouia Chen et al. 1997
+
†Misszhouia canadensis Mayers et al. 2019
†Misszhouia longicaudata Zhang and Hou 1985
G. †Naraoia Walcott 1912
+
†Naraoia arcana Mayers et al. 2019
†Naraoia bertiensis Caron et al. 2005
†Naraoia compacta Walcott 1912
†Naraoia magna Mayers et al. 2019
†Naraoia spinosa Zhang and Hou 1985
†Naraoia taijiangensis Peng et al. 2012
Subcl. †Petalopleura Hou and Bergstrom 1997
hide
G. †Cindarella Chen et al. 1996
+
†Cindarella eucalla Chen et al. 1996
G. †Sinoburius Hou et al. 1991
+
†Sinoburius lunaris Hou et al. 1991
G. †Xandarella Hou et al. 1991
+
†Xandarella spectaculum Hou et al. 1991
G. †Tarricoia Hammann et al. 1990
Invalid names: Naraoiida [replaced]
Or. †Xandarellida Chen et al. 1996
hide
G. †Luohuilinella Zhang et al. 2012
hide
†Luohuilinella rarus Zhang et al. 2012
Diagnosis
No diagnoses are available