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Imperatoria
Taxonomy
Imperatoria was named by de Gregorio (1930) [Sepkoski's age data: O Llde P Guad-l Sepkoski's reference number: 218,652]. Its type is Imperatoria gallwitzi.
It was assigned to Porifera by Branson (1948); to Sebargasiidae by Rigby and Potter (1986), Rigby et al. (1988); to Calcarea by Sepkoski (2002); and to Precorynellinae by Finks et al. (2004).
It was assigned to Porifera by Branson (1948); to Sebargasiidae by Rigby and Potter (1986), Rigby et al. (1988); to Calcarea by Sepkoski (2002); and to Precorynellinae by Finks et al. (2004).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Imperatoria de Gregorio p. 39 |
| 1948 | Imperatoria Branson p. 103 |
| 1986 | Imperatoria Rigby and Potter |
| 1988 | Imperatoria Rigby et al. |
| 2002 | Imperatoria Sepkoski |
| 2004 | Imperatoria Finks et al. p. 637 |
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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. †Imperatoria de Gregorio 1930
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†Imperatoria anomala de Gregorio 1930
†Imperatoria fistulata Rigby and Senowbari-Daryan 1996
†Imperatoria irregularis Rigby and Potter 1986
†Imperatoria marconii de Gregorio 1930
†Imperatoria media Rigby and Potter 1986
†Imperatoria mega Rigby and Potter 1986
†Imperatoria minima Rigby and Potter 1986
†Imperatoria voluta Rigby and Senowbari-Daryan 1996
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Whittington et al. 1997, Kiessling 2004 | |||||
Age range: base of the Llandeilo to the top of the Capitanian or 461.10000 to 259.51000 Ma
Collections (27 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandeilo | USA (California) | I. mega, I. minima (56190) | |
| Llandeilian - Caradoc | USA (Alaska) | I. media (99662) I. sp., I. media (99664) | |
| Caradoc | USA (Alaska) | I. sp., I. media (99661) | |
| Ashgill | USA (California) | I. media, I. mega, I. minima (69241) I. media, I. minima, I. irregularis (99697) I. mega (99692 99694 99805) I. minima (99698) | |
| Ashgill | Canada (Yukon) | I. media (99659) | |
| Wordian | China (Guangxi) | I. sp. (47446) | |
| Wordian | Tunisia (Madanin) | I. voluta (41836 41864 41975) | |
| Wordian | Italy | I. marconii, I. anomala (233340) | |
| Wordian - Capitanian | Tunisia (Madanin) | I. marconii (42092) | |
| Capitanian | Tunisia (Madanin) | I. fistulata (41855 41958) I. marconii (42006) I. voluta (41956 41978 42005 42007 42043) I. voluta, I. fistulata (41870 41955) |