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Euomphalus

Gastropoda - Euomphalina - Euomphalidae

Taxonomy
Euomphalus was named by Sowerby (1814) [Sepkoski's age data: S Wenl-u Tr Nori Sepkoski's reference number: 797,1197]. Its type is Euomphalus pentangulatus. It is the type genus of Euomphaloidea, Euomphalacea.

It was reranked as Straparollus (Euomphalus) by Knight et al. (1960).

It was assigned to Straparollus by Knight et al. (1960) and Mazaev (1994); to Euomphalina by Sepkoski (2002); and to Euomphalidae by de Koninck (1881), Ulrich and Scofield (1897), Morris and Cleevely (1981), Linsley and Kier (1984), Bandel and Frýda (1998), Nützel (2002), Bouchet et al. (2005), Nützel and Ketwetsuriya (2016) and Wagner (2023).

Species
E. (Schizostoma), E. (Schizostoma) cirridioides, E. acuticosta, E. acutus, E. altus, E. angularis, E. anticostiensis, E. araneifer, E. archiaci, E. articulatus, E. basinodosus, E. biarmatus, E. bundtzeni, E. cassianus, E. catilliformis, E. catillus, E. cera, E. conradi, E. crotalostomiformis, E. crotalostomus, E. dentatus, E. eurekensis, E. fairchildi, E. fenestralis, E. gradatus, E. helicinus, E. illinoisensis, E. kaibabensis, E. latus, E. luxus, E. minimus, E. minor, E. mohri, E. neapolitanus, E. nitidulus, E. nodocarinatus, E. nodulosus, E. oldhami, E. patulus, E. pentangulatus (type species), E. perspectivus, E. perversus, E. planodorsatus, E. planorbis, E. plummeri, E. pronodocarinatus, E. pusilliformis, E. radiatus, E. rotundus, E. schnurii, E. serratus, E. similis (syn. Straparollus (Euomphalus) planus), E. simuloides, E. sinister, E. sinistrorsus, E. studeri, E. subtrigonalis, E. sulcatus, E. telleri, E. tenuistriatus, E. trigonalis, E. triliris, E. tuberculatus, E. utahensis, E. venustus (syn. Delphinula verneuilii), E. verneuili, Phymatifer coroniferus, Phymatifer peruvianus, Phymatifer pugiloides, Schizostoma africanum, Schizostoma calyx, Schizostoma costata, Schizostoma fasciatum, Straparollus (Euomphalus) alaskensis, Straparollus (Euomphalus) asanoi, Straparollus (Euomphalus) brooksensis, Straparollus (Euomphalus) carbonarius, Straparollus (Euomphalus) cornudanus, Straparollus (Euomphalus) elegans (syn. E. amaenus), Straparollus (Euomphalus) equalis, Straparollus (Euomphalus) glabribasis, Straparollus (Euomphalus) konobasis, Straparollus (Euomphalus) levicarinatus, Straparollus (Euomphalus) marginatiformis, Straparollus (Euomphalus) pancakensis, Straparollus (Euomphalus) parvulus, Straparollus (Euomphalus) parvus, Straparollus (Euomphalus) pernodosus, Straparollus (Euomphalus) pugilis, Straparollus (Euomphalus) qingyanensis, Straparollus (Euomphalus) subplanus (syn. E. obtusus, Straparollus (Straparollus) missouriensis), Straparollus (Euomphalus) sumatrensis, Straparollus (Euomphalus) uedai, Straparollus (Euomphalus) umbilicatus, Straparollus (Euomphalus) variabilis

Synonyms
Synonymy list
YearName and author
1814Euomphalus Sowerby p. 31 figs. pl., figs 2,3,9,10
1881Euomphalus de Koninck
1881Phymatifer de Koninck
1897Euomphalus Ulrich and Scofield
1899Euomphalus (Schizostoma) Kittl p. 20
1901Euomphalus (Phymatifer) Fliegel p. 112
1931Euomphalus simuloides Grabau p. 352 figs. Pl 34, fig 6
1960Straparollus (Euomphalus) Knight et al. p. 192
1981Euomphalus Morris and Cleevely
1984Euomphalus Linsley and Kier
1994Straparallus (Euomphalus) Mazaev p. 24
1998Euomphalus Bandel and Frýda pp. 107 - 108
2002Euomphalus Nützel p. 261
2002Euomphalus Sepkoski
2005Euomphalus Bouchet et al. pp. 74, 241
2016Euomphalus Nützel and Ketwetsuriya p. 491
2023Euomphalus Wagner

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassEogastropoda
orderEuomphalina
superfamilyEuomphaloidea()
familyEuomphalidae
genusEuomphalus

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. †Euomphalus Sowerby 1814
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Subg. †Euomphalus (Schizostoma) Weigner 1937
†Euomphalus acuticosta Sandberger and Sandberger 1855
†Euomphalus acutus Sowerby 1818
†Euomphalus altus Kirchner 1915
†Euomphalus angularis Weller 1900
†Euomphalus anticostiensis Twenhofel 1928
†Euomphalus araneifer Whidborne 1892
†Euomphalus archiaci Goldfuss 1844
†Euomphalus articulatus Goldfuss 1844
†Euomphalus basinodosus Kirchner 1915
†Euomphalus biarmatus Klipstein 1843
†Euomphalus bundtzeni Blodgett 1992
†Euomphalus cassianus Koken 1889
†Euomphalus catilliformis de Koninck 1881
†Euomphalus catillus Martin 1793
†Euomphalus cera Etheridge 1917
†Euomphalus conradi Hall 1861
†Euomphalus dentatus Münster 1841
†Euomphalus eurekensis Walcott 1884
†Euomphalus fairchildi Clarke and Ruedemann 1903
†Euomphalus fenestralis Whidborne 1892
†Euomphalus gradatus Koken 1896
†Euomphalus helicinus Münster 1840
†Euomphalus illinoisensis Thein and Nitecki 1974
†Euomphalus kaibabensis Chronic 1952
†Euomphalus latus Hall 1858
†Euomphalus luxus Hall 1859
†Euomphalus minimus M'Coy 1847
†Euomphalus minor Parks 1915
†Euomphalus mohri Kirchner 1915
†Euomphalus neapolitanus Whidborne 1892
†Euomphalus nitidulus Angelin and Lindström 1880
†Euomphalus nodocarinatus Wanner 1922
†Euomphalus nodulosus de Koninck 1876
†Euomphalus oldhami Reed 1944
†Euomphalus patulus Koken and Perner 1925
†Euomphalus pentangulatus Sowerby 1814
†Euomphalus perspectivus Swallow 1863
†Euomphalus perversus d'Orbigny 1842
†Euomphalus planodorsatus Meek and Worthen 1860
†Euomphalus planorbis d’Archiac and de Verneuil 1842
†Euomphalus plummeri Knight 1934
†Euomphalus pronodocarinatus Pan and Yu 1993
†Euomphalus pusilliformis Wanner 1922
†Euomphalus radiatus Goldfuss 1832
†Euomphalus rotundus Parks 1915
†Euomphalus schnurii d’Archiac and de Verneuil 1842
†Euomphalus serratus Knight 1934
†Euomphalus similis Meek and Worthen 1862
+
Invalid names: Straparollus (Euomphalus) planus Girty 1915 [synonym]
†Euomphalus sinister Tolmachoff 1930
†Euomphalus sinistrorsus Wanner 1922
†Euomphalus studeri Klipstein 1843
†Euomphalus subtrigonalis Whidborne 1891
†Euomphalus sulcatus Kayser 1873
†Euomphalus telleri Kittl 1891
†Euomphalus trigonalis Goldfuss 1844
†Euomphalus triliris Easton 1943
†Euomphalus tuberculatus Tolmachoff 1930
†Euomphalus utahensis Hall and Whitfield 1877
†Euomphalus venustus Münster 1841
+
Invalid names: Delphinula verneuilii Klipstein 1843 [synonym]
†Euomphalus verneuili Goldfuss 1844
†Straparollus (Euomphalus) alaskensis Yochelson and Dutro 1960
†Straparollus (Euomphalus) brooksensis Yochelson and Dutro 1960
+
Invalid names: Euomphalus amaenus de Koninck 1881 [synonym]
†Straparollus (Euomphalus) konobasis Jeffery et al. 1994
†Straparollus (Euomphalus) pernodosus Meek and Worthen 1870
†Straparollus (Euomphalus) qingyanensis Yin and Yochelson 1983
+
Invalid names: Euomphalus obtusus Hall 1858 [synonym]
†Straparollus (Euomphalus) umbilicatus Meek and Worthen 1860
†Straparollus (Euomphalus) variabilis Jeffery et al. 1994
Invalid names: Euomphalus simuloides Grabau 1931 [nomen dubium], Phymatifer de Koninck 1881 [synonym], Schizostoma Bronn 1834 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height1376.990.78024.77.006.03
shell diameter13722.915.648.520.111.0

Composition: aragoniteg
Composition 2: "calcite"g
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 10 to < 100g
Locomotion: stationaryg
Life habit: epifaunalg
Diet: suspension feederg
Vision: limitedc
Created: 2004-02-28 13:58:32
Modified: 2009-03-04 12:35:42
Source: g = genus, c = class
References: Kiessling 2004, Wagner 1999

Age range: base of the Caradoc to the top of the Late/Upper Triassic or 458.40000 to 201.40000 Ma

Collections (326 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Whiterockian470.0 - 457.3USA (California) E. sp. (208573)
Caradoc458.4 - 449.5Sweden E. sp. (380)
Rawtheyan448.8 - 445.2United Kingdom (Wales) E. sp. (8370 8373)
Silurian443.8 - 419.2USA (California) E. sp. (229254)
Telychian438.5 - 433.4Canada (Ontario) E. minor, E. rotundus (77332)
Niagaran438.0 - 421.3USA (Ohio) E. sp. (475)
Homerian430.5 - 427.4USA (New York) E. fairchildi (155562)
Gorstian427.4 - 425.6United Kingdom (England) E. sp. (480)
Ludlow427.4 - 423.0Canada (Ontario) E. galtensis (155723)
Lochkovian419.2 - 410.8Australia (New South Wales) Straparollus sp. (25705 25706 45711)

Youngest occurrences
Time interval Ma Country or state PBDB collection number
Ladinian242.0 - 237.0Italy E. cirridioides (138255 138256)
Longobardian242.0 - 235.0Italy E. sp. (236005)
Carnian237.0 - 228.0Hungary (Bakony) E. cassianus (203199) E. sp. (203208)
Carnian237.0 - 228.0Italy (South Tyrol) E. venustus (205149)
Carnian237.0 - 228.0China (Qinghai) E. sp. (56725)
Carnian237.0 - 228.0Hungary E. sp. (70883)
Late/Upper Triassic237.0 - 201.4USA (Alaska) E. sp. (112287 112288)
Julian235.0 - 232.0Italy E. dentatus, E. biarmatus, E. cassianus (144631) E. sp. (69670) E. telleri (144634) Schizostoma dentata, Ceratites venustus, Schizostoma costata (137429)
Norian - Rhaetian228.0 - 201.3Peru Phymatifer peruvianus (68140)
Rhaetian208.5 - 201.3Peru E. sp. (68144)