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Onchonotus nasutus
Taxonomy
Levisia nasuta was named by Walcott (1911). Its type specimen is USNM 57600, a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Onchonotus nasutus by Raymond (1924).
It was recombined as Onchonotus nasutus by Raymond (1924).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1911 | Levisia nasuta Walcott |
1924 | Onchonotus nasutus Raymond |
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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.
†Onchonotus nasutus Walcott 1911
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Diagnosis
No diagnoses are available
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: Trempealeauan or 490.20000 to 486.85000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Trempealeauan | Canada (Quebec) | Onchonotus nasutus (224138 224140 224150) |