| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Keijia
Taxonomy
Keijia was named by Teeter (1975).
It was assigned to Pectocytheridae by Ceolin et al. (2015), Ceolin et al. (2024).
It was assigned to Pectocytheridae by Ceolin et al. (2015), Ceolin et al. (2024).
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Keijia Teeter |
| 2015 | Keijia Ceolin et al. |
| 2024 | Keijia Ceolin et al. |
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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. †Keijia Teeter 1975
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†Keijia circulodictyon Ceolin et al. 2015
†Keijia flexuosa Bertels 1975
†Keijia huantraicoensis Bertels 1969
†Keijia kratistos Ceolin et al. 2015
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Jell and Adrain 2002 | |||||
Age range: base of the Maastrichtian to the top of the Danian or 72.20000 to 61.66000 Ma
Collections (23 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | Argentina (Neuquen) | Cytheromorpha flexuosa (236318) | |
| Maastrichtian | Argentina (Neuquén) | K. flexuosa (231993 231995 231996 231997) K. huantraicoensis (231998) | |
| Maastrichtian - Danian | Argentina (Rio Negro) | K. flexuosa (236599 236601) | |
| Danian | Argentina (Neuquén) | K. circulodictyon, K. kratistos (232007 232008) K. huantraicoensis (231999 232000) K. kratistos (232009 232010 232014 232015) K. kratistos, K. flexuosa, K. huantraicoensis (232002) K. kratistos, K. huantraicoensis (232001 232003 232004 232005 232006) Munseyella huantraicoensis (232031) |