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Spalacotheridium
Taxonomy
Spalacotheridium was named by Cifelli (1990). It is not extant. Its type is Spalacotheridium mckennai.
It was assigned to Spalacotheriidae by Cifelli (1990), McKenna and Bell (1997) and Li and Luo (2006); and to Spalacolestinae by Cifelli and Madsen (1999), Kielan-Jaworowska et al. (2004) and Han and Meng (2016).
It was assigned to Spalacotheriidae by Cifelli (1990), McKenna and Bell (1997) and Li and Luo (2006); and to Spalacolestinae by Cifelli and Madsen (1999), Kielan-Jaworowska et al. (2004) and Han and Meng (2016).
Species
S. mckennai (type species), S. noblei
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Spalacotheridium Cifelli |
| 1997 | Spalacotheridium McKenna and Bell |
| 1999 | Spalacotheridium Cifelli and Madsen pp. 174-179 |
| 2004 | Spalacotheridium Kielan-Jaworowska et al. pp. 345, 369 fig. 9.10B |
| 2006 | Spalacotheridium Li and Luo p. 197 |
| 2016 | Spalacotheridium Han and Meng |
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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. †Spalacotheridium Cifelli 1990
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†Spalacotheridium mckennai Cifelli 1990
†Spalacotheridium noblei Cifelli and Madsen 1999
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Luo et al. 2003, Hopson 1973, Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Early/Lower Cenomanian to the top of the Santonian or 99.60000 to 83.60000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | USA (Utah) | S. noblei (14398 14399 14400 14402 14403 14405 14407) Symmetrodonta indet. (14396) | |
| Middle Turonian - Late/Upper Turonian | USA (Utah) | S. mckennai (14414) | |
| Santonian | USA (Montana) | S. mckennai (181582) |