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Aulacostephanus (Aulacostephanoceras)
Taxonomy
Aulacostephanus (Aulacostephanoceras) was named by Ziegler (1962).
It was assigned to Aulacostephanus by Ziegler (1962), Mesezhnikov (1984).
It was assigned to Aulacostephanus by Ziegler (1962), Mesezhnikov (1984).
Subtaxa
Aulacostephanus (Aulacostephanoceras) autissiodorensis, Aulacostephanus (Aulacostephanoceras) kirghisensis (syn. Hoplites syrti), Aulacostephanus (Aulacostephanoceras) lopsiensis, Aulacostephanus (Aulacostephanoceras) pseudolinealis, Aulacostephanus (Aulacostephanoceras) undorae (syn. Hoplites subundorae, Aulacostephanus plataulax), Aulacostephanus (Aulacostephanoceras) volgensis
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Aulacostephanus (Aulacostephanoceras) Ziegler |
| 1984 | Aulacostephanus (Aulacostephanoceras) Mesezhnikov p. 125 |
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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.
Subg. †Aulacostephanus (Aulacostephanoceras) Ziegler 1962
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†Aulacostephanus (Aulacostephanoceras) autissiodorensis Cotteau 1868
†Aulacostephanus (Aulacostephanoceras) kirghisensis d'Orbigny 1845
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Invalid names: Hoplites syrti Pavlov 1886 [synonym]
†Aulacostephanus (Aulacostephanoceras) lopsiensis Mesezhnikov 1984
†Aulacostephanus (Aulacostephanoceras) pseudolinealis Mesezhnikov 1969
†Aulacostephanus (Aulacostephanoceras) undorae Pavlov 1886
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Invalid names: Aulacostephanus plataulax Buckman 1925 [synonym], Hoplites subundorae Pavlov 1886 [synonym]
†Aulacostephanus (Aulacostephanoceras) volgensis Vischniakoff 1875
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 22.1 | 11.0 | 36.4 | 25.2 | 9.45 | |
| shell diameter | 7 | 60.0 | 29.0 | 104.0 | 68.0 | 25.9 | |
| shell inflation | 7 | 21.8 | 9.90 | 40.6 | 25.2 | 10.2 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Early/Lower Kimmeridgian to the top of the Late/Upper Kimmeridgian or 154.80000 to 149.20000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Kimmeridgian | United Kingdom (England) | Aulacostephanus autissiodorensis (38656) | |
| Late/Upper Kimmeridgian | Russian Federation (Khanty-Mansi Autonomous Okrug) | Aulacostephanus undorae (164314) Aulacostephanus undorae, Aulacostephanus volgensis (58783) Aulacostephanus undorae, Aulacostephanus volgensis, Aulacostephanus lopsiensis (58781) Aulacostephanus volgensis, Aulacostephanus lopsiensis (58782) | |
| Late/Upper Kimmeridgian | Russian Federation (Krasnoyarsk) | Aulacostephanus pseudolinealis (164322) | |
| Late/Upper Kimmeridgian | Russian Federation | Aulacostephanus undorae, Aulacostephanus volgensis, Aulacostephanus kirghisensis, Aulacostephanus autissiodorensis (58853 58854 58855) Aulacostephanus volgensis (190662) Aulacostephanus volgensis, Aulacostephanus kirghisensis (190536) | |
| Late/Upper Kimmeridgian | Russian Federation (Komi) | Aulacostephanus kirghisensis (164317) Aulacostephanus undorae (164321) Aulacostephanus undorae, Aulacostephanus autissiodorensis (164320) Aulacostephanus volgensis (164004) |