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Parahousia
Taxonomy
Parahousia was named by Palmer (1960) [Sepkoski's age data: Cm Fran-l Sepkoski's reference number: 384]. Its type is Parahousia constricta.
It was assigned to Asaphida by Sepkoski (2002); to Pterocephaliidae by Jell and Adrain (2002); and to Housiinae by Hopkins (2011).
It was assigned to Asaphida by Sepkoski (2002); to Pterocephaliidae by Jell and Adrain (2002); and to Housiinae by Hopkins (2011).
Species
P. constricta (type species), P. subequalis
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Parahousia Palmer p. 76 |
| 2002 | Parahousia Jell and Adrain p. 419 |
| 2002 | Parahousia Sepkoski |
| 2011 | Parahousia Hopkins p. 1141 |
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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. †Parahousia Palmer 1960
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†Parahousia constricta Palmer 1960
†Parahousia subequalis Palmer 1965
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. J. Hopkins 2011 | Amended from Palmer (1965b). Anterior border longer (tr.) abaxially, tapers strongly laterally. Glabella tapers strongly anteriorly; axial furrows gently concave between palpebral lobes in dorsal view. Node on occipital ring |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: Steptoean or 497.00000 to 493.50000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | USA (Nevada) | P. constricta (75273 110629 114298) P. subequalis (114296 114604 114605) | |
| Dresbachian | Canada (Yukon) | P. subequalis (55277) | |
| Franconian | USA (Missouri) | P. constricta (9137) |