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Samaropsis
Taxonomy
Samaropsis was named by Göppert (1864). It is not extant. It is considered to be a form taxon. Its type is Samaropsis ulmiformis.
It was assigned to Cordaitanthales by Meyen (1984); to Cordaitales by Lakhanpal et al. (1976), Chandra and Tewari (1991); and to Coniferales by Ash (1999).
It was assigned to Cordaitanthales by Meyen (1984); to Cordaitales by Lakhanpal et al. (1976), Chandra and Tewari (1991); and to Coniferales by Ash (1999).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Samaropsis Göppert |
| 1976 | Samaropsis Lakhanpal et al. |
| 1984 | Samaropsis Meyen p. 90 |
| 1991 | Samaropsis Chandra and Tewari |
| 1999 | Samaropsis Ash |
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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. †Samaropsis Göppert 1864
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†Samaropsis bigelowii Ash 1999
†Samaropsis feistmantelii Maithy 1965
†Samaropsis finchii Ash 1999
†Samaropsis ganjrensis Saksena 1956
†Samaropsis goraiensis Surange and Lele 1957
†Samaropsis lamyensis Ash 1999
†Samaropsis menisca Lele 1963
†Samaropsis oregonensis Fontaine 1905
†Samaropsis raniganjensis Seward and Sahni 1920
†Samaropsis romeri Ash 1999
†Samaropsis srivastavae Lele 1955
†Samaropsis surangei Lele 1963
†Samaropsis ulmiformis Goeppert 1864
†Samaropsis whitensis Ash 1999
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Mississippian to the top of the Callovian or 358.86000 to 161.50000 Ma
Collections (268 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Mississippian | USA (Illinois) | S. sp. (13511) | |
| Carboniferous | Canada (New Brunswick) | S. bisecta, S. cornuta (12696) S. cornuta, S. bisecta (12426) | |
| Carboniferous | USA (Colorado) | S. hesperius (11183) | |
| Bashkirian - Gzhelian | USA (Kansas) | S. fluitans (11175) | |
| Pennsylvanian | USA (Michigan) | S. newberryi (10889) | |
| Pennsylvanian | USA (Illinois) | S. sp. (13357 13358) | |
| Westphalian - Carboniferous | Canada (Nova Scotia) | S. ingens, S. sp. (12031) | |
| Atokan | USA (Indiana) | S. sp., S. crampii (11199) S. spp. (11198) | |
| Stephanian A | USA (Ohio) | S. sp. (11188) | |
| Gzhelian | Russian Federation | S. sp. 1 (30380) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Toarcian | Russian Federation | S. sp. 1 (30395) | |
| Aalenian - Bajocian | Russian Federation | S. sp. 1 (30444 30554 30810) S. sp. 1, S. sp. 2 (30553 30807 30809) | |
| Aalenian - Bathonian | Russian Federation | S. sp. 1 (30502 30744) | |
| Middle Jurassic | Kazakhstan | S. sp. 1 (30245) | |
| Middle Jurassic | Russian Federation | S. sp. 1 (30793) | |
| Bajocian - Bathonian | Turkmenistan | S. sp. 1 (30950) | |
| Bajocian - Bathonian | Russian Federation | S. sp. 1 (30808) | |
| Bathonian | Mongolia | S. sp. 1 (30293) | |
| Bathonian - Callovian | Kazakhstan | S. sp. 1 (30235) | |
| Callovian - Oxfordian | Russian Federation | S. sp. 1 (30526) | |