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Cyclonema varicosum

Gastropoda - Euomphalina - Platyceratidae

Taxonomy
Cyclonema varicosa was named by Hall (1861). It is not extant.

It was corrected as Cyclonema varicosum by Hall (1861), Ulrich and Scofield (1897), Bassler (1932), Wilson (1949), Thompson (1970) and Wagner (2023).

Synonymy list
YearName and author
1861Cyclonema varicosa Hall
1861Cyclonema varicosum Hall
1861Cyclonema varicosa Hall p. 91
1897Cyclonema varicosum Ulrich and Scofield p. 1060 figs. pl. 78 f. 27-28
1932Cyclonema varicosum Bassler p. 224 figs. pl. 21 f. 13
1949Cyclonema varicosum Wilson figs. pl. 13 f. 15-17
1970Cyclonema varicosum Thompson pp. 253 - 254 figs. pl. 33 f. 20-22; pl. 34 f. 8-10
2023Cyclonema varicosum Wagner p. 598

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassEogastropoda
orderEuomphalina
superfamilyPlatyceratoidea()
familyPlatyceratidae
genusCyclonema
speciesvaricosum()

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.

†Cyclonema varicosum Hall 1861
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteg
Composition 2: low Mg calciteg
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 10 to < 100g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Ontogeny: accretionsuperf
Environment: marinef
Locomotion: facultatively mobileg
Epibiont: yesg
Life habit: epifaunalg
Diet: coprophageg
Diet 2: deposit feederg
Vision: limitedc
Created: 2004-08-16 09:07:28
Modified: 2009-07-20 15:18:07
Source: g = genus, f = family, superf = superfamily, c = class
References: Knight et al. 1960, Batten 1984, Wagner 2023, Kiessling 2004

Age range: base of the Chatfieldian to the top of the Telychian or 453.80000 to 433.40000 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Franklinian - Edenian457.3 - 450.2USA (Tennessee) Cyclonema varicosum (5370 5371)
Blackriveran - Rocklandian457.3 - 449.6USA (Minnesota) Cyclonema varicosum (23557)
Blackriveran - Rocklandian457.3 - 449.6USA (Illinois, Iowa) Cyclonema varicosum (23621)
Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Cyclonema varicosum (23623 23644)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Cyclonema varicosum (23622)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Minnesota) Cyclonema varicosum (23558)
Shermanian457.3 - 449.6USA (Illinois, Iowa) Cyclonema varicosum (23651 23653 23656)
Shermanian457.3 - 449.6USA (Minnesota) Cyclonema varicosum (23579)
Shermanian457.3 - 449.6USA (Tennessee) Cyclonema varicosum (5368 154415)
Chatfieldian453.8 - 451.0USA (Minnesota) Cyclonema varicosum (194137)
Llandovery443.4 - 433.4USA (New York) Cyclonema varicosum (77054)
Telychian438.5 - 433.4USA (New York) Cyclonema varicosum (77053 82558 82566 82607 83096 83097 83106 83107)