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Exochosphaeridium
Taxonomy
Exochosphaeridium was named by Davey (1966). It is not extant.
It was assigned to Gonyaulacales by Davey (1966); and to Dinophyceae by Davey (1976).
It was assigned to Gonyaulacales by Davey (1966); and to Dinophyceae by Davey (1976).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Exochosphaeridium Davey |
| 1976 | Exochosphaeridium Davey |
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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. †Exochosphaeridium Davey 1966
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†Exochosphaeridium arnace Davey and Verdier 1976
†Exochosphaeridium bifidum Davey 1969
†Exochosphaeridium muelleri Hyesu 1981
†Exochosphaeridium phragmites Davey 1966
†Exochosphaeridium robustum Blackhouse 1988
†Exochosphaeridium sciutum Singh 1971
†Exochosphaeridium truncatum Davey 1969
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Late/Upper Hauterivian to the top of the Middle Campanian or 132.60000 to 72.20000 Ma
Collections (63 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Hauterivian | Argentina (Neuquén) | E. sp., E. phragmites, E. bifidum (150584) | |
| Late/Upper Aptian - Early/Lower Albian | Brazil (Sergipe) | E. sp. (169696 169703 169710 169713 169716 169720 169721 169722 169723 169725 169726 169727 169728 169729 169730 169731 169733 169734 169735 169736 169737 169739 169740 169741 169742 169743 169744 169745 169746 169748 169749 169750 169751 169753 169754 169755 169756 169757 169761 169762 169763 169764 169766 169767 169768 169770 169771 169772 169773 169776 169777 169778 169779 169788 169800) | |
| Santonian - Campanian | Antarctica | E. phragmites (150509) | |
| Early/Lower Campanian - Middle Campanian | Argentina (Santa Cruz) | E. spp. (191790 191792 191807 191814 191816) | |
| Late/Upper Campanian | Antarctica | E. spp. (150182) |