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Cryptograptus tricornis

Pterobranchia - Graptoloidea - Glossograptidae

Taxonomy
Diplograptus tricornis was named by Carruthers (1859). It is the type species of Cryptograptus.

It was recombined as Cryptograptus tricornis by Lapworth (1880).

Sister species lacking formal opinion data
C. centrifugus, C. inutilus

Synonymy list
YearName and author
1859Diplograptus tricornis Carruthers
1880Cryptograptus tricornis Lapworth

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumHemichordataBateson 1885
classPterobranchiaLankester 1877
RankNameAuthor
subclassGraptolithina(Bronn 1849)
orderGraptoloideaLapworth 1875
suborderGlossograptinaJaanuson 1960
familyGlossograptidaeLapworth 1873
subfamilyCryptograptinaeHadding 1915
genusCryptograptus
speciestricornis(Carruthers 1859)

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.

†Cryptograptus tricornis Carruthers 1859
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: "sclero-protein"c
Locomotion: facultatively mobileg
Life habit: planktonicg
Diet: suspension feederg
Vision: blindc
Created: 2009-04-11 12:46:30
Modified: 2009-04-11 14:46:30
Source: g = genus, c = class
References: Hendy et al. 2009, Aberhan 1992, Aberhan et al. 2004

Age range: base of the Dobrotivian to the top of the Whiterockian or 461.00000 to 457.30000 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Middle Ordovician471.3 - 458.2USA (Nevada) Cryptograptus tricornis (203990)
Whiterockian471.3 - 457.3Canada (Newfoundland and Labrador) Cryptograptus tricornis (104860 104865)
Darriwilian469.4 - 458.2Russian Federation (Siberia) Cryptograptus tricornis (205561 206161)
Llanvirn468.0 - 458.2USA (Alaska) Cryptograptus tricornis (114859)
Llandeilian461.1 - 458.2USA (Idaho) Cryptograptus tricornis (145328 145329 145330)
Llandeilo461.1 - 458.2United Kingdom (Wales) Cryptograptus tricornis (216511)
Llandeilian - Caradoc461.1 - 449.5USA (Alaska) Cryptograptus tricornis (114860)
Dobrotivian461.0 - 459.7Czechia Cryptograptus tricornis (3859)
Gisbornian458.2 - 452.3USA (Idaho) Cryptograptus tricornis (145233 145236 145237 145238 145239 145240 145331)
Caradoc458.2 - 449.5USA (Alaska) Cryptograptus tricornis (114850 114851)
Caradoc458.2 - 449.5Canada (Québec) Cryptograptus tricornis (24537)
Caradoc458.2 - 449.5Canada (New Brunswick) Cryptograptus tricornis (145615)
Late/Upper Ordovician458.2 - 443.1USA (Alaska) Cryptograptus tricornis (111713)