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Encrinuroides gelaisi
Taxonomy
Walencrinuroides gelaisi was named by Lespérance and Desbiens (1995) [= 1989 Encrinuroides n. sp. Desbiens & Lespérance 1191]. Its type specimen is GSC 110326, an exoskeleton (enrolled exoskeleton), and it is a 3D body fossil. Its type locality is Quarry 1.5 km north of the Ouiatchouaniche River, Roberval, which is in an Edenian carbonate shale/wackestone in the Shipshaw Formation of Canada.
It was recombined as Encrinuroides gelaisi by Moss and Westrop (2014).
It was recombined as Encrinuroides gelaisi by Moss and Westrop (2014).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Walencrinuroides gelaisi Lespérance and Desbiens pp. 9 - 11 fig. 3.6–3.13 |
| 2014 | Encrinuroides gelaisi Moss and Westrop pp. 1116, table 1 figs. 12, 13 |
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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.
†Encrinuroides gelaisi Lespérance and Desbiens 1995
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. J. Lespérance and D. Desbiens 1995 | A species characterized by reduced ornamentation, notably on the cephalic borders, thorax, and pygidial ribs. Glabellar furrows short (tr.), distally restricted and sub-vertical; cephalon with small genal spines or spinules. Pygidium as wide as long to wider than long, with 19-20 tuberculated axial rings and 7 (rarely, 8) pleural ribs. | |
| D. K. Moss and S. R. Westrop 2014 | Gently expanded glabella with minimum width at L2; scattered perforate glabellar tubercles with pairing on L1 and L2, but obscure anteriorly. Genal spine reduced to bluntly pointed nub. Palpebral lobe strongly elevated on narrow stalk centered opposite anterior half of L2. Librigena with shallow anterior furrow defined largely by absence of scupture; closely spaced, large tubercles on precranidial lobe. Pygidium with low, paired perforate tubercles on axial rings; paired tubercles on opposing right and left pleural ribs mostly effaced and expressed largely by perforations. Seven pairs of pleural ribs, with tips of two posteriormost pairs fused into border; free tips of anterior pairs rounded rather than spinose. |