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Trigonarca jacksonensis
Taxonomy
Trigonarca jacksonensis was named by Anderson (1958). It is a 3D body fossil. Its type locality is CAS loc. 33770, former Sheble ranch, 2.5 miles southwest of Phoenix, which is in a Cretaceous marine horizon in the Hornbrook Formation of Oregon.
Sister species lacking formal opinion data
Cucullaea austriaca, Cucullaea crassitesta, Cucullaea szaboi, T. abrupta, T. brahminica, T. canensis, T. cliffwoodensis, T. cuneiformis, T. curvatodonta, T. depressa, T. elongata, T. falloti, T. ferlinii, T. galdrina, T. maconensis, T. meridionalis, T. moutoniana, T. multidentata, T. obliqua, T. obliquata, T. obsoleta, T. passyana, T. semisulcata, T. szaboi, T. thevestensis, T. triquetra
Synonymy list
| Year | Name and author |
|---|---|
| 1958 | Trigonarca jacksonensis Anderson p. 96 figs. Plate 2, figures 6, 6a, 6b |
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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.
†Trigonarca jacksonensis Anderson 1958
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Mikkelsen and Bieler 2008 | |||||
Age range: Late/Upper Cretaceous or 100.50000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cretaceous | USA (Oregon) | Trigonarca jacksonensis (type locality: 225033) |