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Lophonema taneyensis

Gastropoda - Euomphalina - Helicotomidae

Taxonomy
Polhemia taneyensis was named by Cullison (1944). It is not extant. Its type locality is M. S. M. 105.4, west side of Mo. State Highway 76A at Rockaway Beach, which is in a Cassinian carbonate limestone/chert in the Theodosia Formation of Missouri. It is the type species of Polhemia.

It was recombined as Lophonema taneyensis by Morris and Cleevely (1981), Wagner (1999) and Wagner (2023).

Synonymy list
YearName and author
1944Polhemia taneyensis Cullison p. 55 figs. pl. 26 f. 6-10
1960Polhemia taneyensis Knight et al.
1981Lophonema taneyensis Morris and Cleevely p. 208
1999Lophonema taneyensis Wagner
2002Polhemia taneyensis Rohr et al. p. 272 figs. f. 6-10
2023Lophonema taneyensis Wagner p. 907

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassEogastropoda
orderEuomphalina
superfamilyEuomphaloidea()
familyHelicotomidae()
genusLophonema
speciestaneyensis()

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.

†Lophonema taneyensis Cullison 1944
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Diagnosis
No diagnoses are available
Measurements
partNmean
height112.0

Composition: aragonitec
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Locomotion: stationarysuperf
Life habit: epifaunalsuperf
Diet: suspension feedersuperf
Vision: limitedc
Created: 2009-06-05 18:17:26
Modified: 2009-06-05 20:17:26
Source: g = genus, superf = superfamily, c = class
References: Bambach et al. 2007, Kiessling 2004, Knight et al. 1960

Age range: Cassinian or 482.30000 to 470.00000 Ma

Collections (21 total)


Time interval Ma Country or state Original ID and collection number
Cassinian482.3 - 470.0Canada (Newfoundland and Labrador) Polhemia taneyensis (56152 56153)
Cassinian482.3 - 470.0USA (Missouri) Polhemia n. sp. #1 (75520 75555) Polhemia n. sp. #2 (75524) Polhemia n. sp. #3 (75519 75522 75525 75556) Polhemia n. sp. #3, Polhemia n. sp. #1 (75561) Polhemia n. sp. #5, Polhemia n. sp. #1 (75523) Polhemia n. sp. #5, Polhemia n. sp. #4, Polhemia n. sp. #1 (75551) Polhemia n. sp. #6 (75557) Polhemia n. sp. #6, Polhemia n. sp. #3 (75552) Polhemia n. sp. #6, Polhemia n. sp. #4, Polhemia n. sp. #2 (75543) Polhemia n. sp. #6, Polhemia n. sp. #4, Polhemia n. sp. #2, Polhemia n. sp. #1 (75547) Polhemia sp., Polhemia n. sp. #2 (64612) Polhemia taneyensis (type locality: 56433 56513 56515)
Rangerian470.0 - 470.3Greenland Lophonema taneyensis (174316)