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Celtencrinurus multisegmentatus
Taxonomy
Calymene multisegmentatus was named by Portlock (1843). Its type specimen is GSM 35416, a pygidium, and it is a 3D body fossil. Its type locality is Desertcreat, which is in a Pusgillian/Cautleyan offshore mudstone in the Killey Bridge Formation of the United Kingdom. It is the type species of Celtencrinurus.
It was recombined as Amphion multisegmentatus by Portlock (1843); it was synonymized subjectively with Encrinurus striatus by Warburg (1925); it was recombined as Encrinurus multisegmentatus by Tripp (1957); it was recombined as Celtencrinurus multisegmentatus by Evitt and Tripp (1977); it was recombined as Erratencrinurus (Celtencrinurus) multisegmentatus by Owen (1981) and Owen and Heath (1989).
It was recombined as Amphion multisegmentatus by Portlock (1843); it was synonymized subjectively with Encrinurus striatus by Warburg (1925); it was recombined as Encrinurus multisegmentatus by Tripp (1957); it was recombined as Celtencrinurus multisegmentatus by Evitt and Tripp (1977); it was recombined as Erratencrinurus (Celtencrinurus) multisegmentatus by Owen (1981) and Owen and Heath (1989).
Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Amphion multisegmentatus Portlock p. 291 figs. pl. 3, figs. 6a, b |
| 1957 | Encrinurus multisegmentatus Tripp pp. 61 - 65 figs. Plate 11, figs. 6-8; Plate 12, figs. 1-6 |
| 1977 | Celtencrinurus multisegmentatus Evitt and Tripp p. 119 |
| 1981 | Erratencrinurus (Celtencrinurus) multisegmentatus Owen |
| 1989 | Erratencrinurus (Celtencrinurus) multisegmentatus Owen and Heath |
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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.
†Celtencrinurus multisegmentatus Portlock 1843
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. P. Tripp 1957 | Cranidium gently convex longitudinally; glabella elongate, depressed posteriorly; frontal lobe approximately half Jength of glabella. T'ubercle formula: I-0; ll-0, 1; ID-O, 1, 2; (iv-O); IV-V-VI- 1, 2, 3. Fixed cheeks strongly tuberculate, with two conspicuously Jarge tubercles one behind the other. |