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Taxonomy
Dechenella (Dechenella) osborni was named by Ormiston (1967). Its type specimen is GSC 18158, a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Dechenella osborni by Lieberman (1994) and Bignon and Crônier (2011).
It was recombined as Dechenella osborni by Lieberman (1994) and Bignon and Crônier (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Dechenella (Dechenella) osborni Ormiston pp. 76 - 78 figs. Plate VIII, figures 12-18 |
| 1994 | Dechenella osborni Lieberman p. 125 |
| 2011 | Dechenella osborni Bignon and Crônier p. 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.
†Dechenella osborni Ormiston 1967
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. S. Lieberman 1994 | S3 roughly convex anteriorly; facial suture circumscribes anteromedian part of eye, then parallels sagittal line forming an obtuse angle; posterior portion of S 1 contacts SO; anterior border furrow faint, diffuse, marked by gradual change in slope between fixigenae and preglabellar field and anterior cephalic border; median glabellar furrows medially directed posteriorly; anteromedian portion of eye opposite distal tip of S2; pygidial interpleural furrows absent; anterior portion of pygidial axial rings straight medially; border rounded lip, convex up dorsally, reaches point of constant and greatest thickness opposite pleural segment three; 16 pygidial axial rings. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009, Fortey and Owens 1999 | |||||