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Cardipeltis richardsoni
Taxonomy
Cardipeltis richardsoni was named by Denison (1966). Its type specimen is FMNH PF3902, a partial skeleton (a dorsal disc, exposed on the outer side), and it is a 3D body fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Cardipeltis richardsoni Denison p. 93 figs. Figs. 1 - 4 |
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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.
†Cardipeltis richardsoni Denison 1966
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. H. Denison 1966 | The median length of the dorsal disc in known specimens ranges from 104-133 mm. The ratio of its maximum width to its medium length is 1.03-1.15. The ratio of the greatest width across the anterior part of the disc to that across the postbranchial lobes is .75-.83. The branchial openings are situated about half-way between the midline and the lateral margins of the dorsal disc, and are separated from each other by about 45-60 mm. The ornament of the dorsal disc consists of rather coarse ridges, with many irregularities in the details of their arrangement and a tendency to be arranged parallel the anterior and lateral arranged parallel margins. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: Early/Lower Devonian or 419.20000 to 393.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Devonian | USA (Wyoming) | Cardipeltis richardsoni (26179) |