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Sychnoelasma
Taxonomy
Sychnoelasma was named by Lang et al. (1940) [Sepkoski's age data: C Tour-l C Vise-l]. It is not extant.
It was assigned to Hapsiphyllidae by Hill (1956); to Zaphrentoidinae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Hapsiphyllidae by Hill (1956); to Zaphrentoidinae by Hill (1981); and to Rugosa by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
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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. †Sychnoelasma Lang et al. 1940
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†Sychnoelasma hawbankense Mitchell and Somerville 1988
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Invalid names: Sychnoelasma urbanowitschi Stuckenberg 1895 [synonym], Verneuilites konincki Lissitzin 1960 [synonym], Zaphrentis konincki Vaughan 1908 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Osagean or 352.00000 to 343.00000 Ma
Collections (57 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tournaisian | United Kingdom (England) | Zaphrentis konincki (8703 8709 8710 8712 8731 8733 8761) | |
| Tournaisian | Russian Federation (Tatarstan) | S. konincki (78848) | |
| Tournaisian | Russian Federation | S. sp. (78778) | |
| Tournaisian | China | S. konincki (66875 66881 66882) | |
| Ivorian | United Kingdom (Wales) | S. konincki (5878 5879 5881 5882 5883 5884 5887 5888 5889 5890) | |
| Ivorian | Turkey | S. hawbankense (173955) | |
| Osagean | USA (Nevada) | S. alrichanum (6272) S. ulrichanum (6273) | |
| Arundian | United Kingdom (Wales) | Hapsiphyllum konincki (5824 5825 5826 5827 5828 5832 5833 5834 5835 5836 5837 5838 5842 5843 5845 5846 5852 5853 5856 5857 5858 5860 5861 5862) S. konincki, S. sp., S. urbanowitschi (5757) S. konincki, S. urbanowitschi (5759) S. sp., S. konincki, S. urbanowitschi (5758) | |
| Chadian | United Kingdom (Wales) | S. konincki (5896 5897) | |
| Chadian | Ireland | S. hawbankense (76879) | |
| Chadian - Arundian | Russian Federation | S. konincki, S. urbanowitschi (78779) | |
| Visean | Ukraine (Donets) | S. sp. (99619) |