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Chanciaopsis heteromorphos
Taxonomy
Chanciaopsis heteromorphos was named by Sundberg (1994). Its type specimen is LACMIP 11953, a cephalon/head, and it is a 3D body fossil. Its type locality is Dugway Range, 36.94m, LACMIP 15544, which is in a Delamaran marine limestone in the Trailer Formation of Utah. It is the type species of Chanciaopsis.
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Chanciaopsis heteromorphos Sundberg pp. 103 - 107 figs. Figure 67 |
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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.
†Chanciaopsis heteromorphos Sundberg 1994
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg 1994 | Chanciaopsis with two cranidial types. Specimens without prominent medial swell- ing with convergent, concave facial suture anterior of palpebral lobes; flat, level anterior border, very slight median swelling in anterior border furrow; moderate to large palpebral lobes, moderately pos- terior directed ocular ridges; anterior area of fixi- gena and preglabellar field slightly downsloping to very strongly downsloping; and moderately narrow posterior area of fixigenae (30-40% glabellar length). Specimens with prominent medial swelling with di- vergent convex facial sutures anterior of palpebral lobes; flat, level anterior border relatively wide; moderate to large palpebral lobes, moderately posterior directed ocular ridges; anterior area of fixigena and preglabellar field moderately downsloping to very strongly downsloping; and moderately nar- row posterior area of fixigenae. |