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Tetinka accedens
Taxonomy
Tetinka accedens was named by Barrande (1881). Its type specimen is NM L 23 488 and is a 3D body fossil.
Synonymy list
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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.
†Tetinka accedens Barrande 1881
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Kriz 2011 | Postero-ventrally elongated (H/L = 1.3–1.6), broadly subtriangular Tetinka, with obese shell (L/W = 1–1.5), longest in the upper half of the shell height. Enantiomorphous, inclined to the right. Umbonal angle 48–58°. Blunt edge separates the frontal face and the rest of shell. Dorso-ventral margin rounded. The angle between ventral end of frontal face and ventral margin of the shell is almost sharp. Posterior wing separated by very shallow and wide sulcus. Outer surface almost smooth with fine growth wrinkles or with narrow regular growth bands combined with numerous radial ribs. On the inner surface prominent radial ribs are developed on frontal face (24) and posteriorly of posterior wing (7–11). On the central part of the shell the radial ribs (24–34) are less developed. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class | |||||
| References: Eaton 1871, Aberhan et al. 2004 | |||||
Age range: Ludfordian or 425.60000 to 423.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ludfordian | Czech Republic (Praha) | Tetinka accedens (233160) |