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Ptilophyllum
Taxonomy
Ptilophyllum was named by Morris (1840). It is not extant. It is considered to be a form taxon.
It was assigned to Cycadophyta by Andrews (1970); and to Bennettitales by Lakhanpal et al. (1976), Chandra and Tewari (1991), Watson and Sincock (1992) and Santos et al. (2022).
It was assigned to Cycadophyta by Andrews (1970); and to Bennettitales by Lakhanpal et al. (1976), Chandra and Tewari (1991), Watson and Sincock (1992) and Santos et al. (2022).
Species
P. acutifolium (syn. Zamia theobaldii, Palaeozamia rigida, Palaeozamia acutifolium), P. amarjolense, P. antarcticum, P. cutchense (syn. Otozamites contiguus, P. brachyphyllum, Palaeozamia affinis, Palaeozamia cutchensis, Zamia indica), P. deodikarii, P. distanse, P. gladiatum, P. guptae, P. horridum, P. indicum, P. institacallum, P. jabalpurense, P. menendezii, P. muelleri (syn. Anomozamites muelleri), P. nipanica, P. oldhamii, P. pecten, P. pectiniformis, P. raghudevapurense, P. rarinervis, P. rewaensis, P. sahnii, P. sakrigaliensis, P. sparsifolium, P. tenerrimum, P. valvatum
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1840 | Ptilophyllum Morris |
| 1970 | Ptilophyllum Andrews |
| 1976 | Ptilophyllum Lakhanpal et al. |
| 1991 | Ptilophyllum Chandra and Tewari |
| 1992 | Ptilophyllum Watson and Sincock |
| 2022 | Ptilophyllum Santos et al. p. 10 |
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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. †Ptilophyllum Morris 1840
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†Ptilophyllum acutifolium Morris 1840
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Invalid names: Palaeozamia acutifolium Morris 1863 [synonym], Palaeozamia rigida Oldham 1863 [synonym], Zamia theobaldii McClelland 1850 [synonym]
†Ptilophyllum amarjolense Bose 1953
†Ptilophyllum antarcticum Archangelsky and Baldoni 1972
†Ptilophyllum cutchense Morris 1840
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Invalid names: Otozamites contiguus Feistmantel 1876 [synonym], Palaeozamia affinis Morris 1863 [synonym], Palaeozamia cutchensis Morris 1863 [synonym], Ptilophyllum brachyphyllum Feistmantel 1876 [synonym], Zamia indica McClelland 1850 [synonym]
†Ptilophyllum deodikarii Mahabale and Satyanarayana 1979
†Ptilophyllum distanse Feistmantel 1877
†Ptilophyllum gladiatum Bose and Sukh-Dev 1958
†Ptilophyllum guptae Sharma 1967
†Ptilophyllum horridum Roy 1967
†Ptilophyllum indicum Jacob and Jacob 1954
†Ptilophyllum institacallum Bose 1959
†Ptilophyllum jabalpurense Jacob and Jacob 1954
†Ptilophyllum menendezii Cantrill 2000
†Ptilophyllum muelleri Ettingshausen 1886
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Invalid names: Anomozamites muelleri Ettingshausen 1886 [synonym]
†Ptilophyllum nipanica Vishnu-Mittre 1957
†Ptilophyllum oldhamii Jacob and Jacob 1954
†Ptilophyllum pecten Phillips 1829
†Ptilophyllum pectiniformis Sternberg 1823
†Ptilophyllum raghudevapurense Mahabale and Satyanarayana 1979
†Ptilophyllum rarinervis Feistmantel 1879
†Ptilophyllum rewaensis Sukh-Dev and Zeba-Bano 1977
†Ptilophyllum sahnii Gupta and Sharma 1968
†Ptilophyllum sakrigaliensis Sah 1958
†Ptilophyllum sparsifolium Sharma 1967
†Ptilophyllum tenerrimum Feistmantel 1877
†Ptilophyllum valvatum Villar de Seoane 2001
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Norian to the top of the Early/Lower Oligocene or 228.00000 to 28.40000 Ma
Collections (316 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Triassic | Chile | P. sp. 1 (29509) | |
| Late/Upper Triassic | Chile (Huasco) | P. sp. (223789) | |
| Norian | Canada (Northwest Territories) | P. sp. (23981) | |
| Norian - Rhaetian | Tajikistan | P. sp. 1 (30898) | |
| Norian - Rhaetian | Iran | P. sp. 1 (30187) | |
| Norian - Rhaetian | China (Sichuan) | P. sp. 1 (30006 30028) | |
| Rhaetian - Sinemurian | Georgia | P. sp. 1 (30121) | |
| Early/Lower Jurassic | Argentina (Neuquen) | P. sp. 1, P. sp. 2, P. sp. 3, P. sp. 4 (29390) | |
| Early/Lower Jurassic | China (Jiangsu) | P. sp. 1, P. sp. 2 (29598 29753) | |
| Early/Lower Jurassic | Russian Federation | P. sp. 1 (30531) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Barremian - Aptian | Kazakhstan | P. sp. 1, P. sp. 2 (30223) | |
| Aptian | Canada (British Columbia) | P. montanense, P. hirtum (24854) | |
| Aptian | Antarctica | P. menendezii (151293 151294) | |
| Late/Upper Aptian - Early/Lower Albian | India (Gujarat) | P. cutchense, P. horridum, P. indicum, P. institacallum, P. oldhamii, P. distans (32378) | |
| Albian - Cenomanian | Argentina (Chubut) | P. acutifolium (150880) | |
| Early/Lower Albian - Middle Albian | USA (British Columbia) | P. sp. (136794) | |
| Late/Upper Albian - Cenomanian | Argentina (Santa Cruz) | P. acutifolium (150632) | |
| Late/Upper Albian - Cretaceous | Antarctica | P. sp. (32474) | |
| Early/Lower Oligocene | Australia (New South Wales) | P. muelleri (167685) | |
| Early/Lower Oligocene | Australia (Tasmania) | P. muelleri (166832) | |