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Ambikella
Taxonomy
Ambikella was named by Sahni and Srivastava (1956) [Sepkoski's age data: C Ms P Guad-u Sepkoski's reference number: 437,538]. Its type is Ambikella fructiformis.
It was reranked as Tomiopsis (Ambikella) by Waterhouse (1998).
It was assigned to Tomiopsis by Waterhouse (1998); to Spiriferida by Sepkoski (2002); and to Ingelarellinae by Williams et al. (2006).
It was reranked as Tomiopsis (Ambikella) by Waterhouse (1998).
It was assigned to Tomiopsis by Waterhouse (1998); to Spiriferida by Sepkoski (2002); and to Ingelarellinae by Williams et al. (2006).
Species
A. antesulcata, A. elongata, A. furca, A. himalayanicus, A. ovata, A. undulosina, Homevalaria profunda, Tomiopsis (Ambikella) bamberi, Tomiopsis (Ambikella) fructiformis (syn. Tomiopsis siangensis), Tomiopsis (Ambikella) ovulum, Tomiopsis (Ambikella) petrenkoi, Tomiopsis (Ambikella) postglabra, Tomiopsis (Ambikella) regina, Tomiopsis (Ambikella) symmetrica
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Ambikella Sahni and Srivastava p. 207 |
| 1986 | Homevalaria Waterhouse |
| 1998 | Tomiopsis (Ambikella) Waterhouse p. 8 |
| 2002 | Ambikella Sepkoski |
| 2002 | Homevalaria Sepkoski |
| 2006 | Ambikella Williams et al. p. 1758 |
| 2006 | Homevalaria Williams et al. p. 1763 |
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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. †Ambikella Sahni and Srivastava 1956
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†Ambikella antesulcata Waterhouse 1967
†Ambikella elongata McClung and Armstrong 1975
†Ambikella furca Waterhouse 1967
†Ambikella himalayanicus Waterhouse 1978
†Ambikella ovata Campbell 1961
†Ambikella undulosina Waterhouse and Chen 2007
†Tomiopsis (Ambikella) bamberi Waterhouse 1998
†Tomiopsis (Ambikella) fructiformis Sahni and Srivastava 1956
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Invalid names: Tomiopsis siangensis Archbold and Singh 1993 [synonym]
†Tomiopsis (Ambikella) ovulum Waterhouse 1971
†Tomiopsis (Ambikella) petrenkoi Czarniecki 1969
†Tomiopsis (Ambikella) postglabra Waterhouse 1987
†Tomiopsis (Ambikella) regina Waterhouse 1987
†Tomiopsis (Ambikella) symmetrica Campbell 1961
Invalid names: Homevalaria Waterhouse 1986 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 22 | 23.0 | 7.62 | 37.9 | 27.4 | 8.18 | |
| valve height | 1 | 25.6 | - | - | - | - |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Asselian to the top of the Changhsingian or 298.90000 to 251.90200 Ma
Collections (147 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asselian | India | A. fructiformis (116801) | |
| Asselian | Russian Federation | Tomiopsis petrenkoi (110207 110208) | |
| Asselian | Canada (British Columbia) | Tomiopsis ovulum (52140) Tomiopsis sp. (101730) | |
| Sakmarian | India | A. konincki (117912 117914 117917) Tomiopsis siangensis (117910 117915 117916) | |
| Sakmarian | Australia (Tasmania) | Tomiopsis elongata (105478 105490 105494) | |
| Sakmarian | Canada (Yukon) | Tomiopsis ovulum (117677) | |
| Sakmarian | Australia (New South Wales) | Ingelarella elongata (136274 136275 136277 136278 136279 136281 136610 136621) Martiniopsis elongata (112983 112984) | |
| Sakmarian - Artinskian | China (Yunnan) | A. sp. (234358) | |
| Artinskian | Australia (Queensland) | A. ovata (102834 102835 102845 103394 103395 103396 103398 103399 103400) A. sp. nov. A (102806 102809 102820 102823 102829 102830 102831 102836 102852 102862) A. sp. nov. B (102762 102803 102812) Ingelarella ovata (103496 103883 103900 103901) Ingelarella ovata, Ingelarella profunda (103884 103897 103947) Ingelarella ovata, Ingelarella profunda, Ingelarella profunda (103885 103893 103898 103899) Ingelarella profunda (103896 103948) Ingelarella profunda, Ingelarella profunda (103894) Ingelarella profunda, Ingelarella symmetrica (103895) Ingelarella symmetrica (95415) Tomiopsis elongata (66207 66208 66211 66213 66214 66217 66218 66219 105074 105076) Tomiopsis ovata (66235 66236 66237 66239 66240 66241 66242 66244 66245 66247 66248 66249 66250 66251 66252 66253 66254 66255 66256 66257 66262 66263 66264 66265 66269 66274 120637) Tomiopsis ovata, Tomiopsis profunda (66243 66271 103351) Tomiopsis ovata, Tomiopsis regina (66210) Tomiopsis postglabra (66234) Tomiopsis regina (66209 66215) | |
| Artinskian | Canada (Yukon) | Tomiopsis ovulum (117694) | |
| Artinskian | Australia (New South Wales) | Ingelarella ovata (136287 136296 136297 136328) Ingelarella ovata, Ingelarella profunda (103675 103745) Ingelarella profunda (136616) Martiniopsis ovata (102760 102761) | |
| Artinskian | New Zealand (Southland) | Ingelarella ovata (41775) | |
| Artinskian | Australia (Tasmania) | Martiniopsis ovata (105424) | |
| Kungurian | Australia (Queensland) | Ingelarella ovata, Ingelarella profunda (105020) Tomiopsis ovata (66227 66228) Tomiopsis postglabra (66222 66223 66224 66231 66233) | |
| Kungurian | Australia (Tasmania) | Martiniopsis ovata, Martiniopsis profunda (105425) | |
| Roadian | Australia (Queensland) | Ingelarella ovata (105022) | |
| Roadian | Canada (Nunavut) | Tomiopsis magna (52143) | |
| Wuchiapingian | China (Xizang) | Tomiopsis himalayanicus (60587) Tomiopsis sp. B (121160) | |
| Wuchiapingian | New Zealand (Southland) | A. sp. (41771) | |
| Changhsingian | New Zealand | A. antesulcata (52759 52785 52786) A. furca (52784) A. furca, Ingelarella n. sp. B (52753) A. n. sp., A. furca (52780) A. sp. (52776) Ingelarella n. sp. B (52760) Ingelarella n. sp. C (52752) | |
| Changhsingian | Nepal | A. sp., A. undulosina (120386) A. undulosina (62444 62447) Tomiopsis himalayanicus (43152) |