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Streptacis

Gastropoda - Heterostropha - Streptacididae

Synonymy list
YearName and author
1871Streptacis Meek p. 173
1931Streptacis Knight
1960Streptacis Knight et al. p. 322
2002Streptacis Bandel p. 49
2002Streptacis Sepkoski
2015Streptacis Mazaev p. 981
2016Streptacis Nützel and Ketwetsuriya p. 509
2020Streptacis Ketwetsuriya et al. p. 72

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classGastropoda
orderHeterostropha()
superfamilyStreptacidoideaKnight 1931
familyStreptacididae
genusStreptacis

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. †Streptacis Meek 1871
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Streptacis complanata Hoare et al. 1997
Streptacis fragilis Pan and Erwin 2002
Streptacis inflata Erwin 1988
Streptacis ingens Hoare et al. 1997
Streptacis khaokhadensis Ketwetsuriya et al. 2020
Streptacis meeki Knight 1931
Streptacis nalivkini Mazaev 2019
Streptacis orientalis Nützel and Nakazawa 2012
Streptacis permiana Beede 1907
Streptacis piercei Erwin 1988
Streptacis pravis Pan and Erwin 2002
Streptacis regularis Pan and Erwin 2002
Streptacis scalpta Knight 1931
Streptacis subgracilis Netschajew 1894
Streptacis volgenesis Mazaev 2020
Streptacis whitfieldi Meek 1871
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height284.530.91015.94.704.54
shell diameter281.050.6831.501.100.296

Composition: aragonitec
Locomotion: actively mobilec
Life habit: epifaunalc
Vision: limitedc
Created: 2004-02-29 11:40:59
Modified: 2010-02-11 01:35:02
Source: c = class
Reference: Kiessling 2004

Age range: base of the Visean to the top of the Middle Campanian or 346.70000 to 70.60000 Ma

Collections (49 total)


Time interval Ma Country or state Original ID and collection number
Visean346.7 - 330.9Australia (New South Wales) S. sp. (44144)
Morrowan318.1 - 314.6USA (Texas) S. whitfieldi (79966)
Moscovian315.2 - 307.0USA (Missouri) S. meeki, S. scalpta, S. whitfieldi (69773)
Westphalian B314.6 - 314.6Germany S. sp. (50127)
Kashirian - Myachkovian313.8 - 306.95USA (New mexico) S. scalpta (46548)
Desmoinesian313.8 - 305.9USA (Texas) S. n. sp. (11100)
Desmoinesian313.8 - 305.9USA (New Mexico) S. sp., S. whitfieldi (46536)
Kasimovian307.0 - 303.7Japan (Gifu) S. sp. A, S. sp. B, S. sp. C (217899)
Asselian298.9 - 295.5Russian Federation (Bashkortostan) S. nalivkini (220900)
Permian298.9 - 252.17USA (Alaska) Loxonema subgracilis (112199)
Sakmarian295.5 - 290.1Russian Federation S. volgenesis (205219)
Artinskian290.1 - 279.3USA (Nevada) S. sp. (66104)
Artinskian290.1 - 279.3USA (Texas) S. inflata (101772 101773)
Kungurian279.3 - 272.3USA (Texas) S. piercei (81949)
Kungurian279.3 - 272.3Malaysia (Perak) S. sp. (62131)
Roadian272.3 - 268.8Russian Federation (Kirov) S. sp. 1, S. subgracilis (126335)
Roadian272.3 - 268.8Russian Federation (Samara) S. subgracilis (170192)
Roadian272.3 - 268.8Thailand S. khaokhadensis (103565)
Roadian272.3 - 268.8Russian Federation S. sp. 2 (198772)
Roadian272.3 - 268.8Russian Federation (Tatarstan) S. subgracilis (174705 174706)
Wordian268.8 - 265.1Thailand S. sp. (181783)
Wordian268.8 - 265.1Thailand (Ratchaburi) S. sp. (40954)
Capitanian265.1 - 259.9Japan S. sp., S. orientalis (109667)
Capitanian265.1 - 259.9USA (Texas) Loxonema permiana (136220) S. permiana (97264 116644 116650 116651)
Wuchiapingian259.9 - 254.17Greece S. sp. (64171 64172 64173 64174 64175)
Wuchiapingian259.9 - 254.17China (Guangxi) S. sp. (50022 50023 50025 50026 50027)
Changhsingian254.17 - 252.17China (Yunnan) S. pravis (56943)
Changhsingian254.17 - 252.17China (Guangxi) S. regularis, S. fragilis (56895)
Changhsingian254.17 - 252.17China (Jiangxi) S. sp. (60523)
Changhsingian254.17 - 252.17USA (Texas) S. permiana (50003 50017 50021)
Griesbachian252.17 - 251.3China (Jiangxi) S. sp. (60525 60526)
Early/Lower Campanian - Middle Campanian83.5 - 70.6USA (Mississippi) S. bogradi (7456)