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Shumardia exopthalmus

Trilobita - Ptychopariida - Shumardiidae

Taxonomy
Shumardia exopthalmus was named by Ross and Barnes (1967). Its type specimen is USNM 145722, a cephalon/head, and it is a 3D body fossil.

Sister species lacking formal opinion data
S. pentagonalis

Synonymy list
YearName and author
1967Shumardia exopthalmus Ross and Barnes p. D9 figs. Pl. 10, figs. 23-24

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyShumardiidaeLake 1907
genusShumardiaBillings 1862
speciesexopthalmus

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.

†Shumardia exopthalmus Ross and Barnes 1967
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Diagnosis
No diagnoses are available