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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Psiloceras marcouxi
Discussion
species name introduced for Psiloceras () sp. A in Guex (1995)
Taxonomy
Psiloceras marcouxi was named by Guex et al. (1998) [from PBDB 188597, originally identified as Psiloceras (?) sp. A ]. It is considered to be a form taxon. Its type specimen is No L-20-P2 (Guex 1995, Pl. 1, Fig. 2), a shell, and it is a mold.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1998 | Psiloceras marcouxi Guex et al. p. 78 |
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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.
†Psiloceras marcouxi Guex et al. 1998
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Kiessling 2004, Kiessling 2003 |
Age range: Planorbis or 201.30000 to 196.50000 Ma
Collections (2 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Hettangian | Canada (British Columbia) | Psiloceras marcouxi (97510) | |
Planorbis | USA (Nevada) | Psiloceras marcouxi (76621) |