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Cordaites
Taxonomy
Cordaites was named by Unger (1850) [leaf form taxon]. It is not extant. It is considered to be a form taxon. Its type is Flabellaria borassifolia.
It was assigned to Cordaitanthales by Meyen (1984); to Cordaitales by Lakhanpal et al. (1976) and Chandra and Tewari (1991); and to Cordaitaceae by Dilcher et al. (2005).
It was assigned to Cordaitanthales by Meyen (1984); to Cordaitales by Lakhanpal et al. (1976) and Chandra and Tewari (1991); and to Cordaitaceae by Dilcher et al. (2005).
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1849 | Pychnophyllum Brongniart |
| 1850 | Cordaites Unger |
| 1976 | Cordaites Lakhanpal et al. |
| 1984 | Cordaites Meyen p. 90 |
| 1991 | Cordaites Chandra and Tewari |
| 2005 | Cordaites Dilcher et al. p. 165 |
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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. †Cordaites Unger 1850
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†Cordaites borassifolia Sternberg 1822
†Cordaites hislopi Bunbury 1878
†Cordaites spatulata Dana 1849
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Invalid names: Noeggerathiopsis densinervis Maithy 1965 [synonym]
Invalid names: Pychnophyllum Brongniart 1849 [objective synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Late/Upper Devonian to the top of the Early/Lower Bajocian or 382.70000 to 168.40000 Ma
Collections (394 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Devonian | Canada (Quebec) | C. angustifolia (21237) | |
| Mississippian | USA (West Virginia) | C. sp. (12694) | |
| Mississippian | USA (Utah) | C. principalis, C. Sp. A, C. Sp. B (11209) | |
| Mississippian | Canada (Nova Scotia) | C. borassifolia (13094) | |
| Mississippian | Canada (New Brunswick) | C. borassifolia (13089) C. robbii, C. principalis (12421) | |
| Mississippian | USA (Illinois) | C. principalis (13511) | |
| Mississippian | USA (Missouri) | C. communis, C. costatus (12122) | |
| Mississippian | USA (Kentucky) | C. felicis (13593) | |
| Mississippian | USA (Georgia) | C. sp. (12698) | |
| Carboniferous - Desmoinesian | USA (Missouri) | C. crassinervis, C. principalis (11196) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Longtanian | Australia (Queensland) | C. elongata (21069) | |
| Changhsingian | Australia (Queensland) | C. sp. 1 (29453) C. sp. A (21071) | |
| Changhsingian | China (Xinjiang) | C. sp. 1 (30017 30095) | |
| Early/Lower Triassic | India (Madhya Pradesh) | Noeggerathiopsis hislopii (226938) | |
| Early/Lower Triassic | France (Lorraine) | C. inhofii (24728) C. mairii (24727) | |
| Ladinian | Germany | C. keuperianus (24820) | |
| Late/Upper Triassic | India (Madhya Pradesh) | Noeggerathiopsis hislopii (224692) | |
| Early/Lower Jurassic | Mexico (Oaxaca) | Noeggerathiopsis hislopii (24724) | |
| Early/Lower Bajocian | Mexico (Oaxaca) | Noeggerathiopsis hislopii (24729) | |
| Bajocian | Mexico (Oaxaca) | Noeggerathiopsis hislopii (25087) | |