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Quebecaspis
Taxonomy
Quebecaspis was named by Rasetti (1944) [Sepkoski's age data: Cm Dres-u]. It is not extant. Its type is Quebecaspis breviceps.
It was assigned to Ptychopariida by Sepkoski (2002); and to Lonchocephalidae by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Lonchocephalidae by Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1944 | Quebecaspis Rasetti p. 254 |
| 2002 | Quebecaspis Jell and Adrain p. 437 |
| 2002 | Quebecaspis Sepkoski |
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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. †Quebecaspis Rasetti 1944
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†Quebecaspis breviceps Rasetti 1944
†Quebecaspis conifrons Rasetti 1961
†Quebecaspis marylandica Rasetti 1961
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Steptoean to the top of the Trempealeauan or 497.00000 to 485.40000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | USA (Vermont) | Q. hemiphaerica, Q. marylandica (8977) | |
| Dresbachian | USA (Alaska) | Q. aspinosa (64803) Q. aspinosa, Q. conifrons (64800) Q. sp. (64799 64802 225279 225280) | |
| Dresbachian | USA (Virginia) | Q. marylandica, Q. conifrons (62204 62205) | |
| Trempealeauan | Canada (Quebec) | Q. breviceps (224148) |