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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Holcospermum
Taxonomy
Holcospermum was named by Nathorst (1914). It is not extant. Its type is Holcospermum dubium.
It was assigned to Plantae by Andrews (1970) and Dilcher et al. (2005).
It was assigned to Plantae by Andrews (1970) and Dilcher et al. (2005).
Species
H. dubium (type species)
Synonymy list
Year | Name and author |
---|---|
1914 | Holcospermum Nathorst |
1970 | Holcospermum Andrews |
2005 | Holcospermum Dilcher et al. p. 163 |
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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 Tournaisian to the top of the Westphalian or 358.90000 to 307.50000 Ma
Collections (13 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Tournaisian - Visean | United Kingdom (Wales) | H. ellipsoideum (34465) | |
Mississippian | USA (Illinois) | H. sp. (13511) | |
Mississippian | USA (West Virginia) | H. maizerentense (12694) | |
Mississippian | USA (Utah) | H. sp. (11209) | |
Carboniferous - Desmoinesian | USA (Missouri) | H. sp. (11196) | |
Carboniferous | USA (Georgia) | H. sp. (12697) | |
Carboniferous | USA (Alabama) | H. sp. (28989 28992 31032) | |
Carboniferous | USA (Indiana) | H. sp. (11197) | |
Pennsylvanian | USA | H. multistriatum (13272) | |
Westphalian | USA (Alabama) | H. sp. (81525) | |
Westphalian D - Moscovian | USA (Oklahoma) | H. sp. (21275) |