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Corystospermales
Taxonomy
Corystospermales was named by Thomas (1933). It is not extant. It is considered to be a form taxon.
It was assigned to Pteridospermophyta by Taylor et al. (2008); to Spermatophyta by Jud (2011); and to Gymnospermopsida by Moisan et al. (2010) and Chatterjee et al. (2013).
It was assigned to Pteridospermophyta by Taylor et al. (2008); to Spermatophyta by Jud (2011); and to Gymnospermopsida by Moisan et al. (2010) and Chatterjee et al. (2013).
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Corystospermales Thomas |
| 2008 | Corystospermales Taylor et al. p. 1028 |
| 2010 | Corystospermales Moisan et al. |
| 2011 | Corystospermales Jud |
| 2013 | Corystospermales Chatterjee et al. |
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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.
Or. †Corystospermales Thomas 1933
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Fm. †Corystospermaceae Thomas 1933
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G. †Cycadopteris Zigno 1853
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†Cycadopteris auriculata Bose and Sukh-Dev 1959
†Cycadopteris brauniana Zigno 1861
†Cycadopteris indica Bose and Sukh-Dev 1959
†Cycadopteris majus Bose and Sukh-Dev 1959
†Cycadopteris pulcherrima Bose and Sukh-Dev 1959
†Cycadopteris ungeri Zigno 1853
G. †Dicroidiopsis Frenguelli 1943
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†Dicroidiopsis crassa Menéndez 1951
†Dicroidiopsis incisa DuToit 1943
G. †Dicroidium Gothan 1912
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†Dicroidium coriaceum Johnston 1886
†Dicroidium crassinervis Geinitz 1876
†Dicroidium dubium Feistmantel 1878
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Invalid names: Sphenopteris bergina Jones and de Jersey 1947 [synonym]
†Dicroidium elongatum Carruthers 1872
†Dicroidium eskense Walkom 1928
†Dicroidium feistmantelii Johnston 1847
†Dicroidium fremouwensis Pigg 1990
†Dicroidium giarensis Pal 1984
†Dicroidium gopadensis Bose and Srivastava 1971
†Dicroidium irnensis Abu Hamad et al. 2008
†Dicroidium jordanensis Abu Hamad et al. 2008
†Dicroidium natalense Frenguelli 1943
†Dicroidium nidpurensis Bose and Srivastava 1971
†Dicroidium odontopteroides Morris 1845
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Invalid names: Thinnfeldia subtrigona Feistmantel 1879 [synonym]
†Dicroidium papillosum Bose and Srivastava 1971
†Dicroidium prolungatum Menéndez 1951
†Dicroidium robustum Abu Hamad et al. 2008
†Dicroidium sahnii Seward 1932
†Dicroidium shirleyi Holmes 1982
†Dicroidium spinifolium Tenison-Woods 1883
†Dicroidium stelznerianum Geinitz 1876
†Dicroidium superbum Shirley 1898
†Dicroidium voiseyi Holmes and Ash 1979
†Dicroidium zuberi Szajnocha 1888
G. †Pteruchus Thomas 1933
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†Pteruchus dubius Thomas 1933
†Pteruchus gopadensis Pant and Basu 1979
†Pteruchus indicus Pant and Basu 1973
†Pteruchus johnstonii Feistmantel 1890
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Invalid names: Pteruchus africanus Thomas 1933 [synonym], Stachyopitys annularioides Shirley 1898 [synonym]
†Pteruchus nidpurensis Srivastava 1975
†Pteruchus rhaetica Geinitz 1876
†Pteruchus thomasii Pant and Basu 1979
G. †Umkomasia Thomas 1933
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†Umkomasia cacheutensis Frenguelli 1942
†Umkomasia distans Holmes 1987
†Umkomasia macleani Thomas 1933
†Umkomasia polycarpa Holmes 1987
†Umkomasia sessilis Holmes 1987
Invalid names: Beania geminata Shirley 1898 [nomen dubium], Karibacarpon Lacey 1974 [synonym], Pilophorosperma Thomas 1933 [synonym]
Invalid names: Umkomastiaceae [replaced]
G. †Doylea Stockey and Rothwell 2009
Diagnosis
No diagnoses are available