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Euthlastus
Taxonomy
Euthlastus was named by Simpson (1927). Its type is Euthlastus cordiformis.
It was assigned to Dryolestidae by Simpson (1927), Simpson (1929), Hay (1930), Kraus (1979), Prothero (1981) and McKenna and Bell (1997); and to Paurodontidae by Engelmann and Callison (1998) and Kielan-Jaworowska et al. (2004).
It was assigned to Dryolestidae by Simpson (1927), Simpson (1929), Hay (1930), Kraus (1979), Prothero (1981) and McKenna and Bell (1997); and to Paurodontidae by Engelmann and Callison (1998) and Kielan-Jaworowska et al. (2004).
Species
E. cordiformis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Euthlastus Simpson p. 414 |
| 1929 | Euthlastus Simpson pp. 47, 79 |
| 1930 | Euthlastes Hay p. 374 |
| 1979 | Euthlastus Kraus p. 164 |
| 1981 | Euthlastus Prothero p. 321 |
| 1997 | Euthlastus McKenna and Bell |
| 1998 | Euthlastus Engelmann and Callison p. 376 |
| 2004 | Euthlastus Kielan-Jaworowska et al. pp. 380, 391 fig. 10.10C |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009, Luo et al. 2003, Hopson 1973 | |||||
Age range: Tithonian or 152.10000 to 145.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kimmeridgian - Tithonian | USA (Wyoming) | E. cordiformis (12816) | |
| Kimmeridgian - Tithonian | USA (Utah) | E. cordiformis (53035) | |
| Tithonian | USA (Utah) | E. sp. (57913) |