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Orthonychia parva

Gastropoda - Cyrtoneritida - Orthonychiidae

Taxonomy
Capulus parva was named by Shumard and Swallow (1858) [Swallow in]. It is not a trace fossil. Its type locality is Lewiston locality, which is in a Sevatian reef, buildup or bioherm limestone in the Martin Bridge Limestone Formation of Idaho.

It was corrected as Capulus parvus by Keyes (1890); it was recombined as Platyceras parvum by Girty (1903), Mark (1912); it was recombined as Platyceras (Orthonychia) parva by Knight and Bridge (1944), Yochelson and Saunders (1967), Kues (1984), Kues (1985), Kues (1996), Kues and Batten (2001); it was recombined as Platyceras (Orthonychia) parvus by Sturgeon (1964); it was recombined as Orthonychia parva by Knight (1934), Sturgeon (1937), Chronic (1953), Bandel and Frýda (1999), Wagner (2023).

Sister species lacking formal opinion data
O. aliena, O. anquis, O. bohemica, O. striatulus, Platyceras alienum, Platyceras auquis

Synonyms
Synonymy list
YearName and author
1858Capulus parva Shumard and Swallow p. 205
1872Platyceras nebrascensis Meek p. 227 figs. pl. 4 f. 15a-b
1877Platyceras nebrascense White p. 159 figs. pl. 12 f. 5a-d
1884Platyceras nebrascense White p. 159 figs. pl. 32 f. 15-16
1890Capulus parvus Keyes p. 177 figs. pl. 2 f. 14a-c
1903Platyceras parvum Girty p. 461 figs. pl. 10 f. 1, 1a, 2, 2a
1912Platyceras parvum Mark p. 298
1934Orthonychia parva Knight pp. 163 - 165 figs. pl. 25 f. 1a-i; pl. 26 f. 1a-b
1937Orthonychia parva Sturgeon p. 357
1944Platyceras (Orthonychia) parva Knight and Bridge p. 473 figs. pl. 193 f. 11-12
1953Orthonychia parva Chronic pp. 144 - 145 figs. pl. 29 f. 10-11
1964Platyceras (Orthonychia) parvus Sturgeon p. 215 figs. pl. 32 f. 8
1967Platyceras (Orthonychia) parva Yochelson and Saunders p. 173
1984Platyceras (Orthonychia) parva Kues figs. f. 3.25
1985Platyceras (Orthonychia) parva Kues p. 14 figs. f. 2H-J, O
1996Platyceras (Orthonychia) parva Kues p. 182 figs. f. 7.16
1999Orthonychia parva Bandel and Frýda p. 224 figs. txt. f. 1; pl. 2 f. 5-8; pl. 3 f. 1-2
2001Platyceras (Orthonychia) parva Kues and Batten p. 44 figs. f. 8.10-8.12
2023Orthonychia parva Wagner p. S5118

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassNeritimorpha
orderCyrtoneritida()
familyOrthonychiidae
genusOrthonychia
speciesparva()

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.

†Orthonychia parva Shumard and Swallow 1858
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: "calcite"g
Composition 2: aragoniteg
Locomotion: actively mobilec
Life habit: epifaunalc
Vision: limitedc
Created: 2010-02-04 11:04:31
Modified: 2010-02-04 13:04:31
Source: g = genus, c = class
References: Kiessling 2004, Ohern and Maynard 1913

Age range: base of the Desmoinesian to the top of the Sakmarian or 312.80000 to 290.10000 Ma

Collections (16 total)


Time interval Ma Country or state Original ID and collection number
Pennsylvanian323.4 - 298.9USA (Ohio) Platyceras parvum (75138)
Moscovian315.2 - 307.0USA (Missouri) Orthonychia parva (69773)
Kashirian - Myachkovian313.8 - 307.0USA (New Mexico) Platyceras parvum (46548)
Desmoinesian312.8 - 306.0USA (New Mexico) Platyceras parvum (46536)
Desmoinesian312.8 - 306.0USA (Ohio) Platyceras parvum (64913 64918 64925 64933)
Desmoinesian312.8 - 306.0USA (Pennsylvania) Platyceras parvum (184098)
Missourian306.0 - 303.7USA (Missouri) Capulus parvus (237765 237796)
Missourian306.0 - 303.7USA (Pennsylvania) Platyceras parvum (184105 184106)
Virgilian303.7 - 298.9USA (Ohio) Platyceras parvum (71993)
Asselian - Sakmarian298.9 - 290.1Peru (Apurimac) Orthonychia parva (41334 41360)