| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Sphenopsida
Taxonomy
Sphenopsida is a class.
It was assigned to Tracheophyta by Jain and Delevoryas (1967), Holmes (1982); to Tracheophyta by Hickey (1977), McIver and Basinger (1993); and to Sphenophyta by Lapasha and Miller (1985), Chatterjee et al. (2013).
It was assigned to Tracheophyta by Jain and Delevoryas (1967), Holmes (1982); to Tracheophyta by Hickey (1977), McIver and Basinger (1993); and to Sphenophyta by Lapasha and Miller (1985), Chatterjee et al. (2013).
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Sphenopsida Jain and Delevoryas |
| 1977 | Sphenopsida Hickey |
| 1982 | Sphenopsida Holmes |
| 1985 | Sphenopsida Lapasha and Miller |
| 1993 | Sphenopsida McIver and Basinger |
| 2013 | Sphenopsida Chatterjee et al. |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
Cl. †Sphenopsida
show all | hide all
G. †Calamospora Schopf et al.
+
†Calamospora aplata Bharadwaj and Salujha 1964
†Calamospora exila Bharadwaj and Salujha 1964
†Calamospora mesozoica Couper 1958
†Calamospora multiplicata Menendez and Azcuy 1969
†Calamospora rotata Salujha 1965
G. †Endocalamites Grand'Eury 1877
Fm. †Lilpopiaceae Conert and Schaarschmidt 1970
+
G. †Lilpopia Conert and Schaarschmidt 1970
+
†Lilpopia raciborskii Lilpop 1937
Invalid names: Tristachya Lilpop 1937 [replaced]
G. †Lobatannularia Kawasaki 1927
+
†Lobatannularia ensifolia Halle 1927
+
Invalid names: Kashmiropteris meyenii Kapoor 1977 [synonym], Kawizophyllum dunpathriensis Kapoor 1977 [synonym]
†Lobatannularia inequifolia Tokunaga 1927
†Lobatannularia lingulata Halle 1927
†Lobatannularia sinensis Halle 1927
Invalid names: Annularites Halle 1927 [synonym], Kashmiropteris Kapoor 1977 [synonym], Kawizophyllum Kapoor 1977 [synonym]
G. †Sphenostrobus Levittan and Barghoorn 1948
+
†Sphenostrobus thompsonii Levittan and Barghoorn 1948
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Silurian to the top of the Early/Lower Maastrichtian or 443.10000 to 66.00000 Ma
Collections (624 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Silurian | Norway (Svalbard) | Calamospora nigrata (20839) | |
| Early/Lower Emsian | Germany (Gemuenden) | Calamospora atava (26903) | |
| Emsian | USA (Wyoming) | Sphondylophyton hyenioides (26176) | |
| Eifelian | United Kingdom (Scotland) | Calamospora pannucea (22758 22797 22805) | |
| Eifelian - Early/Lower Givetian | United Kingdom (Scotland) | Calamospora pannucea (22738 22747 22760 22762 22799 22828 22830 22831 22832) | |
| Middle Devonian | United Kingdom (Scotland) | Calamospora pannucea (22774) | |
| Early/Lower Givetian | United Kingdom (Scotland) | Calamospora pannucea (22748 22749 22772 22773 22795 22802 22829) | |
| Givetian | Canada (Nunavut) | Calamospora atava (22873) | |
| Givetian | United Kingdom (Scotland) | Calamospora atava (22794) | |
| Middle Givetian | United Kingdom (Scotland) | Calamospora pannucea (22763 22766 22770) | |
Youngest occurrences |
|||
| Time interval | Ma | Country or state | PBDB collection number |
| Early/Lower Jurassic | Greenland | Lobatannularia carcinoides (23955 23957 23958 23959 23961 23963 23965 23966) | |
| Pliensbachian - Toarcian | Russian Federation | Lobatannularia sp. 1 (30463) Paracalamites sp. 1 (30560) | |
| Toarcian | Montenegro | Calamospora sp. (24568) | |
| Aalenian | Tajikistan | S. sp. 1 (30904) | |
| Aalenian - Bajocian | Russian Federation | Lobatannularia sp. 1 (30539) | |
| Middle Bathonian | France | Calamospora mesozoica (31317) Calamospora tener (31320) | |
| Aptian | Argentina (Santa Cruz) | Calamospora mesozoica (150335) | |
| Albian - Cenomanian | North Atlantic | Calamospora mesozoica (142271 142272 142273 142274 142275) | |
| Albian - Early/Lower Cenomanian | North Atlantic | Calamospora mesozoica (140569) | |
| Early/Lower Maastrichtian | Antarctica | Calamospora sp. (75458) | |