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Leviceraurus

Trilobita - Phacopida - Cheiruridae

Taxonomy
Leviceraurus was named by Hessin (1988) [Sepkoski's age data: O Cara-m O Cara-u Sepkoski's reference number: 795]. It is not extant. Its type is Leviceraurus mammilloides.

It was assigned to Cheirurinae by Hessin (1988); and to Phacopida by Sepkoski (2002).

Synonymy list
YearName and author
1988Leviceraurus Hessin
2002Leviceraurus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyCheiruridaeHawle and Corda 1847
subfamilyCheirurinaeHawle and Corda 1847
genusLeviceraurusHessin 1988

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
ReferenceDiagnosis
W. A. Hessin 1988A genus of Cheirurinae with moderately and nearly parallel-sided glabella which possesses three short glabellar furrows; width across occipital ring slightly than one-fourth width of cephalon; occipital ring broad, one-fourth length of glabella; glabella appears smooth ed eye, but has prosopon of very fine granules and typically pairs of low, rounded tubercles on medial portion of (often fourth pair and one of third pair absent); eye small, vated and positioned on mid-point of cheek opposite 2s furrow or 2p lobe; rostral plate possesses a pair of faint tubercles; an- terior border very narrow, almost indistinguishable from an- terior lobe of glabella; genal spines moderately long and extend back to opposite fourth or fifth thoracic segment; pygidium triangular in outline, excluding slender anterior spines which are almost as long as length of thorax; two pairs of posterior spines present, but very short