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Stephanozyga

Gastropoda - Pseudozygopleuridae

Synonyms
Synonymy list
YearName and author
1930Pseudozygopleura (Stephanozyga) Knight p. 15
1955Palaeozygopleura (Nodozyga) Horný p. 155
1960Palaeostylus (Stephanozyga) Knight et al. p. 313
1987Stephanozyga Golikov and Starobogatov p. 25
2002Stephanozyga Sepkoski, Jr.
2005Stephanozyga Bouchet et al. pp. 25, 247
2015Stephanozyga Mazaev p. 968

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
superfamilyZygopleuroidea
familyPseudozygopleuridae()
genusStephanozyga()

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.

Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height310.74.6020.313.37.87
shell diameter32.60--2.60-

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 Chadian to the top of the Roadian or 345.30000 to 268.80000 Ma

Collections (29 total)


Time interval Ma Country or state Original ID and collection number
Carboniferous358.9 - 298.9USA (Oklahoma) S. sp. (158)
Visean346.7 - 330.9Japan Pseudozygopleura nishimurai (59832)
Visean346.7 - 330.9China (Guizhou) Pseudozygopleura magna (59843)
Visean346.7 - 330.9United Kingdom (Scotland) Nodozyga rowlandsi (97734)
Chadian345.3 - 345.0United Kingdom (England) Zygopleura rugifera (5961)
Chesterian339.4 - 318.1USA (Kentucky) Palaeostylus sp. indet. 1, Palaeostylus sp. indet. 2 (59823)
Brigantian336.0 - 326.4United Kingdom (Scotland) Zygopleura rugifera (183271) Zygopleura rugifera, Nodozyga cylindracea (155580)
Brigantian336.0 - 326.4Poland (Malopolskie) Palaeostylus rugiferus (101993)
Brigantian336.0 - 326.4United Kingdom (England) Loxonema rugiferum (67670) Palaeostylus rugiferus (57131) Zygopleura rugifera (73391 73423 73424)
Brigantian336.0 - 326.4Ireland (Cork) Loxonema rugifera (184504)
Morrowan318.1 - 314.6USA (Texas) Pseydozygopleura subnodosa (79966)
Morrowan318.1 - 314.6USA (Kentucky) Zygopleura nodosa (158165)
Moscovian315.2 - 307.0USA (Missouri) Pseudozygopleura subnodosa (69772)
Moscovian315.2 - 307.0China (Gansu) Zygopleura ignorata, Zygopleura crassa (149177)
Kashirian - Myachkovian313.8 - 306.95USA (New mexico) S. n. sp.?, S. subnodosa (46548)
Desmoinesian313.8 - 305.9USA (Missouri) Palaeostylus subnodosa (70381)
Desmoinesian313.8 - 305.9USA (New Mexico) Pseudozygopleura subnodosa, Pseudozygopleura granda, Pseudozygopleura lisaspira (46536)
Virgilian303.4 - 298.9USA (Missouri) Zygopleura nodosa (157565)
Virgilian303.4 - 298.9USA (Illinois) S. sp. (50219)
Kungurian279.3 - 272.3Malaysia (Perak) Pseudozygopleura sp. (62131)
Roadian272.3 - 268.8Russian Federation (Tatarstan) Loxonema ornamentaria (126331) S. ornamentaria (174707)
Roadian272.3 - 268.8Russian Federation Loxonema ornamentaria (197764)
Roadian - Wuchiapingian272.3 - 254.17Indonesia Zygopleura ignorata, Zygopleura crassa (118268)