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Araeonema
Taxonomy
Araeonema was named by Knight (1933) [Sepkoski's age data: C Tour-u C Step Sepkoski's reference number: 797,896]. It is not extant. It is the type genus of Araeonematidae.
It was assigned to Gyronematinae by Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); to Araeonematidae by Nützel and Nakazawa (2012) and Mazaev (2015); and to Euomphalidae by Wagner (2023).
It was assigned to Gyronematinae by Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); to Araeonematidae by Nützel and Nakazawa (2012) and Mazaev (2015); and to Euomphalidae by Wagner (2023).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Araeonema Knight |
| 1938 | Palaeoturbina Wenz |
| 1960 | Araeonema Knight et al. p. 239 |
| 2002 | Araeonema Sepkoski |
| 2012 | Araeonema Nützel and Nakazawa p. 117 |
| 2015 | Araeonema Mazaev p. 954 |
| 2023 | Araeonema Wagner p. G1127 |
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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. †Araeonema Knight 1933
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†Araeonema clathratus Paeckelmann 1913
†Araeonema microspirulata Yoo 1994
†Araeonema nacreformis Yoo 1994
†Araeonema novamexicanum Kues 2004
†Araeonema osterholzensis Heidelberger and Amler 2002
†Araeonema panthalassica Nützel and Nakazawa 2012
†Araeonema problematicum Wang 1980
†Araeonema tenuistriata Netchaev 1894
†Araeonema virgatum Knight 1933
Invalid names: Palaeoturbina Wenz 1938 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 9 | 3.39 | 1.50 | 5.60 | 3.80 | 1.36 | |
| shell diameter | 9 | 1.42 | 1.38 | 1.47 | 1.42 | 0.064 |
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| Source: f = family, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the to the top of the Capitanian or 382.40000 to 259.51000 Ma
Collections (29 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Givetian - Early/Lower Frasnian | Germany | A. osterholzensis (28047) | |
| Tournaisian | Australia (New South Wales) | A. microspirulata (44080 44143 44158 44159 44161) A. microspirulata, Gyronema nacreformis (44088) Gyronema nacreformis (43904) | |
| Moscovian | USA (Missouri) | A. sp., A. virgatum (69773) | |
| Desmoinesian | USA (Texas) | A. virgatum (11100) | |
| Desmoinesian | USA (New Mexico) | A. sp. (46536) | |
| Gzhelian | USA (New Mexico) | A. novamexicanum (156716) | |
| Virgilian | USA (New Mexico) | A. novamexicanum (146828 156695 156715) | |
| Noginskian | USA (Kansas) | A. sp. (11494 11566 11591 11742) | |
| Roadian | Russian Federation (Kirov) | A. tenuistriata (126335 170190) | |
| Roadian | Thailand | A. tenuistriata (103565) | |
| Roadian | Russian Federation (Tatarstan) | A. tenuistriata (174705 174706 174707 174709) | |
| Capitanian | Japan | A. panthalassica (109667) | |
| Wuchiapingian | China (Guizhou) | A. problematicum (112106 119959) |