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Walencrinuroides rarus
Taxonomy
Ceraurus rarus was named by Walcott (1877) [Type specimen at FMNH.
According to Moss & Westrop (2014):
Not Encrinuroides c.f. rarus sensu Ludvigsen 1975 pl. 3, figs. 22, 23 [= W. rolfi n. sp.].
Not Encrinuroides c.f. rarus sensu Ludvigsen 1978 pl. 2, fig. [= W. rolfi n. sp.].
Not Encrinuroides c.f. rarus sensu Ludvigsen 1979 p. 21, figs. 42–48 [= W. rolfi n. sp.].
Not Encrinuroides rarus sensu Tremblay & Westrop fig. 17.27–17.36 [= W. tremblayi n. sp.; see Lésperence and Desbiens 1995, p. 9].]. Its type specimen is UC 12322, a cephalon/head (cranidium), and it is a 3D body fossil. It is the type species of Walencrinuroides.
It was recombined as Encrinuroides rarus by Chatterton and Ludvigsen (1976); it was recombined as Walencrinuroides rarus by Lespérance and Desbiens (1995) and Moss and Westrop (2014).
It was recombined as Encrinuroides rarus by Chatterton and Ludvigsen (1976); it was recombined as Walencrinuroides rarus by Lespérance and Desbiens (1995) and Moss and Westrop (2014).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1877 | Ceraurus rarus Walcott p. 68 figs. Pl. 15, figs. 1-43 |
| 1877 | Encrinurus raricostatus Walcott p. 69 |
| 1897 | Encrinurus vannulus Clarke p. 739 |
| 1976 | Encrinuroides rarus Chatterton and Ludvigsen p. 74 figs. Pl. 15, figs. 1-43 |
| 1995 | Walencrinuroides rarus Lespérance and Desbiens p. 9 |
| 2014 | Walencrinuroides rarus Moss and Westrop pp. 1114 - 1115, table 1 fig. 9–11 |
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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.
†Walencrinuroides rarus Walcott 1877
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Invalid names: Encrinurus raricostatus Walcott 1877 [synonym], Encrinurus vannulus Clarke 1897 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. K. Moss and S. R. Westrop 2014 | Glabella does not overhang the anterior cranidial border medially, which expands appreciably abaxially, Glabellar crest strongly flattened. Coarse glabellar tuberculate sculpture restricted to the frontal lobe. Rhynchos of hypostome small, strongly tapered and bluntly pointed anteriorly. |