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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Microspermopteris
Taxonomy
Microspermopteris was named by Baxter (1949). It is not extant. Its type is Microspermopteris aphyllum.
It was assigned to Pteridospermophyta by Andrews (1970).
It was assigned to Pteridospermophyta by Andrews (1970).
Species
M. aphyllum (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1949 | Microspermopteris Baxter |
| 1970 | Microspermopteris Andrews |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Namurian to the top of the Westphalian A or 330.30000 to 316.90000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Carboniferous | USA (Oklahoma) | M. aphyllum (12769) | |
| Namurian | Czechia | M. kraemeri (37356) | |
| Namurian - Westphalian A | Spain (Leon) | M. minima (37358) | |
| Westphalian A | Belgium | M. aphylla (37495) | |
| Westphalian A | Germany | M. kukukii (37501) | |
| Westphalian A | United Kingdom (England) | M. aphylla (37376) M. minima (37369) | |
| Westphalian A - Westphalian B | Germany | M. kukukii (37506) |