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Gyronema semicarinatum

Gastropoda - Murchisoniina - Lophospiridae

Taxonomy
Cyclonema semicarinatum was named by Salter (1859). It is not a trace fossil.

It was recombined as Gyronema semicarinatum by Ulrich and Scofield (1897), Wilson (1951), Thompson (1970) and Wagner (2023).

Synonyms
Synonymy list
YearName and author
1859Cyclonema semicarinatum Salter
1897Gyronema duplicatum Ulrich and Scofield
1897Gyronema semicarinatum Ulrich and Scofield p. 1055 figs. pl. 78 f. 17-18
1951Gyronema semicarinatum Wilson p. 75 figs. pl. 12 f. 18-20
1970Gyronema semicarinatum Thompson p. 266
2023Gyronema semicarinatum Wagner p. 1513

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

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.

†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
Locomotion: actively mobileo
Life habit: epifaunalo
Diet: detritivoreo
Vision: limitedo
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: Turinian or 457.30000 to 453.80000 Ma

Collections (20 total)


Time interval Ma Country or state Original ID and collection number
Turinian457.3 - 453.8USA (Illinois) Gyronema duplicatum (88007)
Mohawkian457.3 - 451.0USA (Minnesota) Gyronema semicarinatum (167563)
Blackriveran457.3 - 449.6Canada (Quebec) Gyronema semicarinatum (63816)
Blackriveran457.3 - 449.6USA (Wisconsin) Gyronema duplicatum (154948)
Blackriveran457.3 - 449.6USA (Illinois, Iowa) Gyronema duplicatum (23613 23614 23615)
Blackriveran457.3 - 449.6USA (Minnesota) Gyronema duplicatum (23555 23556)
Blackriveran - Rocklandian457.3 - 449.6USA (Minnesota) Gyronema semicarinatum (23557)
Blackriveran - Rocklandian457.3 - 449.6USA (Illinois, Iowa) Gyronema semicarinatum (23621)
Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Gyronema semicarinatum (23623 23644)
Rocklandian457.3 - 449.6Canada (Quebec) Gyronema semicarinatum (154703)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Gyronema semicarinatum (23622)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Minnesota) Gyronema semicarinatum (23558)
Shermanian457.3 - 449.6USA (Minnesota) Gyronema semicarinatum (23579)
Shermanian457.3 - 449.6USA (Illinois, Iowa) Gyronema semicarinatum (23651 23653 23656)