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Cyphoproetus

Trilobita - Proetida - Proetidae

Taxonomy
Cyphoproetus was named by Kegel (1927).

It was assigned to Proetida by Sepkoski (2002); to Proetidae by Begg (1950) and Jell and Adrain (2002); and to Proetinae by Owen (1981) and Hughes (2010).

Synonymy list
YearName and author
1927Cyphoproetus Kegel
1950Cyphoproetus Begg p. 287
1981Cyphoproetus Owen
2002Cyphoproetus Jell and Adrain p. 363
2002Cyphoproetus Sepkoski
2010Cyphoproetus Hughes pp. 103 - 104

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
superfamilyProetoideaHawle and Corda 1847
familyProetidaeSalter 1864
subfamilyProetinaeSalter 1864
genusCyphoproetusKegel 1927

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.

G. †Cyphoproetus Kegel 1927
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†Cyphoproetus bellus Cooper and Kindle 1936
†Cyphoproetus comitilus Clarkson and Howells 1981
†Cyphoproetus depressa Barrande 1846
†Cyphoproetus facetus Tripp 1954
†Cyphoproetus pugionis Howells 1982
Diagnosis
ReferenceDiagnosis
H. E. Hughes 2010The following diagnosis is based on that of Thomas (1978, p. 40), emended to allow for the variable position of the occipital node: proetine with glabella with deep S1 defining prominent L1; lateral occipital lobes typically present. Preglabellar field, if present, shorter (sag.) than anterior border; lateral cephalic margin commonly incurved at base of genal spine. Thorax of 9–10 segments. Pygidium without border; axis with 5–8 rings, pleural areas with 3–6 pairs of pleural ribs.
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: deposit feedero
Vision: well-developedf
Comments: BODY SIZE: Data from Harrington et al. (1959).g
Created: 2009-06-10 08:15:23
Modified: 2009-06-10 10:15:23
Source: g = genus, f = family, o = order, c = class
References: Fortey and Owens 1999, Aberhan et al. 2004, Hendy 2009

Age range: base of the Rocklandian to the top of the Homerian or 457.30000 to 427.40000 Ma

Collections (48 total)


Time interval Ma Country or state Original ID and collection number
Costonian458.4 - 457.2United Kingdom (Wales) C. sp. (3371)
Sandbian458.4 - 453.0United Kingdom (Scotland) C. sp. (208121 208124)
Caradoc458.4 - 449.5United Kingdom (Scotland) C. facetus (188938)
Shermanian - Edenian457.3 - 450.2Canada (Northwest Territories) C. sp. (24637)
Rocklandian - Kirkfieldian457.3 - 449.6Canada (Northwest Territories) C. sp. (24635)
Edenian451.0 - 450.2Canada (Northwest Territories) C. sp. (24636)
Richmondian - Gamachian449.6 - 443.7Canada (Quebec) Phaethonides bellus (37790)
Pirgu449.5 - 445.2Norway (Ringerike) C. svartoensis (162234)
Ashgill449.5 - 443.7Canada (Quebec) Warburgella bella (13131)
Pirgu - Hirnantian449.5 - 443.4Sweden (Dalarne) C. sp. 1 (73490)
Rawtheyan448.8 - 445.2Norway C. svartoensis (162228 163372)
Rawtheyan448.8 - 445.2Norway (Oppland Fylke) C. sp. 3, C. sp. (73492)
Rawtheyan448.8 - 445.2Norway (Oslo) C. sp. 2 (73491)
Rawtheyan - Hirnantian448.8 - 443.4Norway C. svartoensis (163373)
Rhuddanian443.4 - 440.8United Kingdom (Scotland) C. externus (188530 188531 188532 188533)
Rhuddanian - Aeronian443.4 - 438.5Greenland C. externus, C. alyo (12937)
Rhuddanian - Aeronian443.4 - 438.5Russian Federation (Siberia) C. externus (206464)
Rhuddanian - Aeronian443.4 - 438.5Norway C. externus (14318)
Aeronian440.8 - 438.5United Kingdom (Scotland) C. externus (188535) C. pugionis (188538)
Aeronian440.8 - 438.5Czech Republic C. semidepressus (14122) C. sp. (14087)
Aeronian440.8 - 438.5Norway C. sp. (14303)
Telychian438.5 - 433.4Canada (Ontario) C. sp. (77326 77328 77335)
Telychian438.5 - 433.4Greenland C. sp. (23048)
Telychian438.5 - 433.4United Kingdom (Shropshire) C. binodosus (49580)
Telychian438.5 - 433.4United Kingdom (Scotland) C. comitilis (23297 23301) C. comitilis, C. depressus (23308 188545) C. depressus (170694)
Sheinwoodian433.4 - 430.5Canada (Nunavut) C. n. sp. A (25975) C. n. sp. B (25977)
Sheinwoodian433.4 - 430.5Canada (Northwest Territories) C. n. sp. B (25976 229171)
Sheinwoodian - Homerian433.4 - 427.4United Kingdom (England) C. depressus (207977)
Wenlock433.4 - 427.4Czech Republic (Bohemia) Cyphaspis depressa (229801)
Homerian430.5 - 427.4Czech Republic C. putzkeri (14050 14102)
Homerian430.5 - 427.4United Kingdom C. depressus (165514)
Jaagarahu428.2 - 422.9Latvia C. insterianus, C. latifrontalis (13725)