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Hemiarges paulianus

Trilobita - Lichida - Lichidae

Taxonomy
Lichas (Arges) wesenbergensis paulianus was named by Clarke (1894). Its type specimen is USNM 42436a [lectotype selected by Rudkin et al 1994], a pygidium, and it is a 3D body fossil.

It was recombined as Hemiarges paulianus by Foerste (1920) and Rudkin et al. (1994).

Sister species lacking formal opinion data
H. aqiiilonius

Synonyms
  • Hemiarges bartoni was named by Raymond (1925). Its type specimen is MCZ 1755, a cephalon/head (cranidium), and it is a 3D body fossil.

    It was synonymized subjectively with Hemiarges paulianus by Rudkin et al. (1994).
  • Hemiarges aeolus was named by Sinclair (1944). Its type specimen is GSC 13276, a cephalon/head (cranidium), and it is a 3D body fossil.

    It was synonymized subjectively with Hemiarges paulianus by Rudkin et al. (1994).
Synonymy list
YearName and author
1894Lichas (Arges) wesenbergensis paulianus Clarke p. 298
1920Hemiarges paulianus Foerste
1925Hemiarges bartoni Raymond pp. 128 - 129 figs. pl. 8 f. 10
1930Hemiarges bartoni Bradley pp. 270 - 271 figs. pl. 29 f. 17-21, 24
1944Hemiarges aeolus Sinclair
1994Hemiarges paulianus Rudkin et al. p. 291

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderLichidaMoore 1959
familyLichidaeHawle and Corda 1847
subfamilyTrochurinaePhleger 1936
genusHemiargesGürich 1901
speciespaulianus(Clarke 1894)

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.

†Hemiarges paulianus Clarke 1894
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Invalid names: Hemiarges aeolus Sinclair 1944 [synonym], Hemiarges bartoni Raymond 1925 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 1.0 to < 10g
Spines: minorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivoreo
Vision: well-developedf
Created: 2009-06-09 14:39:27
Modified: 2009-06-09 16:39:27
Source: g = genus, f = family, o = order, c = class
References: Aberhan et al. 2004, Whittington et al. 1997, Harrington et al. 1959

Age range: base of the Chatfieldian to the top of the Edenian or 453.80000 to 450.20000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Caradoc458.4 - 449.5Canada (Ontario) Hemiarges paulianus (26290)
Blackriveran457.3 - 449.6USA (Iowa/Wisconsin) Hemiarges paulianus (23120)
Chatfieldian453.8 - 451.0USA (Missouri) Hemiarges bartoni (154953)
Chatfieldian453.8 - 451.0Canada (Ontario) Hemiarges paulianus (26267 26273)
Edenian451.0 - 450.2Canada (Northwest Territories) Hemiarges paulianus (24636)
Edenian451.0 - 450.2Canada (Quebec) Hemiarges paulianus (163865)