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Laevaptychus (ammonoid aptychus)
Discussion
Aptychus
Taxonomy
Laevaptychus was named by Trauth (1927). It is not extant. It is considered to be a form taxon.
It was assigned to Ammonoidea by Arkell et al. (1957).
It was assigned to Ammonoidea by Arkell et al. (1957).
Synonymy list
Year | Name and author |
---|---|
1927 | Laevaptychus Trauth |
1957 | Laevaptychus Arkell et al. p. L468 |
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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.
G. †Laevaptychus Trauth 1927 [ammonoid aptychus]
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Kiessling 2004, Kiessling 2003 |
Age range: base of the Middle Oxfordian to the top of the Berriasian or 161.20000 to 139.80000 Ma
Collections (16 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Oxfordian | Yemen (Wadi Hajar) | Laevaptychus sp. (2597) | |
Middle Oxfordian | France | Laevaptychus sp. (163585) | |
Kimmeridgian - Tithonian | Yemen (Wadi Hajar) | Laevaptychus sp. (2574) | |
Late/Upper Kimmeridgian | Russian Federation | Laevaptychus sp. (190536) | |
Late/Upper Kimmeridgian | Germany (Bavaria) | Laevaptychus sp. (132944) | |
Tithonian - Kimmeridgian | Yemen (Wadi Hajar) | Laevaptychus sp. (2544 2569 2571 2573 2617) | |
Tithonian | Yemen (Wasi Hajar) | Laevaptychus sp. (2582) | |
Middle Tithonian | Argentina (Neuquen) | Laevaptychus sp. (135631 135632) | |
Berriasian | Yemen (Wadi Hajar) | Laevaptychus sp. (2629 2632 2633) |