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Gyronema

Gastropoda - Murchisoniina - Lophospiridae

Taxonomy
Gyronema was named by Ulrich and Scofield (1897) [Sepkoski's age data: O Cara-l O Cara-m Sepkoski's reference number: 362 NOTE: For one species, Ulrich and Scofield wrote Gyronema as a subgenus of Cyclonema. However, this was the old convention of using X (?Y) to denote that a species probably belonged to X but might belong to Y. ]. Its type is Gyronema pulchellum.

It was reranked as Trochonema (Gyronema) by Perner (1907); it was reranked as Cyclonema (Gyronema) by Bassler (1932).

It was assigned to Trochonema by Perner (1907); to Cyclonema by Bassler (1932); to Archaeogastropoda by Sepkoski (2002); to Lophospiridae by Wagner (1999), Bouchet et al. (2005); and to Gyronematinae by Knight et al. (1960), Wagner (2023).

Synonymy list
YearName and author
1897Gyronema Ulrich and Scofield p. 1053
1907Trochonema (Gyronema) Perner
1932Cyclonema (Gyronema) Bassler
1960Gyronema Knight et al. p. 239
1999Gyronema Wagner
2002Gyronema Sepkoski
2005Gyronema Bouchet et al. p. 84
2023Gyronema Wagner p. G320

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassOrthogastropoda
orderMurchisoniina
superfamilyTrochonematoidea()
familyLophospiridae
subfamilyGyronematinae
genusGyronema

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. †Gyronema Ulrich and Scofield 1897
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Gyronema altispiralis Grabau 1922
Gyronema pulchellum Ulrich and Scofield 1897
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Invalid names: Gyronema liratum Ulrich and Scofield 1897 [replaced]
Gyronema rotalineum Raymond 1906
Gyronema semicarinatum Salter 1859
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Invalid names: Gyronema duplicata Ulrich and Scofield 1897 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Adult height: 1.0 to < 10g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Environment: coastal, marineo
Locomotion: slow-movingo
Life habit: epifaunalo
Diet: detritivoreo
Vision: limitedo
Comments: BODY SIZE: Data from Knight et al. (1960).g
Created: 2009-06-06 07:46:53
Modified: 2009-06-06 09:46:53
Source: g = genus, o = order
References: Bambach et al. 2007, Hendy 2009

Age range: base of the Turinian to the top of the Gzhelian or 457.30000 to 298.90000 Ma

Collections (44 total)


Time interval Ma Country or state Original ID and collection number
Costonian458.2 - 457.2USA (Oklahoma) G. sp. (13815)
Late/Upper Ordovician458.2 - 443.1Canada (Nunavut) G. sp. (101981)
Turinian457.3 - 453.8USA (Illinois) G. duplicatum (88007)
Mohawkian457.3 - 451.0USA (Minnesota) G. semicarinatum (167563)
Blackriveran457.3 - 449.6USA (Wisconsin) G. duplicatum, G. liratum (154948)
Blackriveran457.3 - 449.6USA (Minnesota) G. duplicatum, Trochonema lirata (23555 23556)
Blackriveran457.3 - 449.6Canada (Quebec) G. semicarinatum (63816)
Blackriveran457.3 - 449.6USA (Illinois, Iowa) G. duplicatum, Trochonema lirata (23613 23614 23615)
Blackriveran - Rocklandian457.3 - 449.6USA (Minnesota) G. pulchellum, G. semicarinatum, Trochonema lirata (23557)
Blackriveran - Rocklandian457.3 - 449.6USA (Illinois, Iowa) G. pulchellum, G. semicarinatum (23621)
Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) G. pulchellum, G. semicarinatum (23623 23644)
Rocklandian457.3 - 449.6Canada (Quebec) G. semicarinatum (154703)
Rocklandian457.3 - 449.6USA (Minnesota) G. pulchellum (154411)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Minnesota) G. pulchellum, G. semicarinatum (23558)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) G. pulchellum, G. semicarinatum (23622)
Shermanian457.3 - 449.6USA (Illinois, Iowa) G. pulchellum, G. semicarinatum (23651 23653) G. sp. (23659 23664 23667 23668 23670) G. sp., G. pulchellum, G. semicarinatum (23656)
Shermanian457.3 - 449.6USA (Minnesota) G. sp. (23584) G. sp., G. pulchellum, G. semicarinatum (23579)
Katian452.8 - 445.2USA (Kentucky) G. pulchellum (100539 100858 100859)
Edenian451.0 - 450.2USA (Illinois, Iowa) G. sp. (23678)
Edenian451.0 - 450.2USA (Minnesota) G. sp. (23588)
Richmondian449.6 - 445.5USA (Alaska) G. sp. (49341)
Rawtheyan448.8 - 445.2United Kingdom (Wales) G. sp. (8327 8328 192503)
Porkuni445.2 - 443.1Sweden (Dalarne) G. n. sp. (153091)
Juuru443.1 - 440.8Estonia G. sp. (172929)
Telychian438.6 - 432.9China (Guizhou) G. sp. (56659)
Gorstian426.7 - 425.0Czechia (Středočeský (Central Bohemian Region)) G. sp. (106004)
Ludlow426.7 - 422.7Canada (Northwest Territories) G. sp. (534)
Gzhelian303.7 - 298.9China (Shanxi) G. altispiralis (156149)