Xystoscolex boreogyrus, Morris & Peel, 2010
publication ID |
https://doi.org/ 10.4202/app.2009.0058 |
persistent identifier |
https://treatment.plazi.org/id/DF7087DF-FFFC-243A-B722-CF2AFB3DFABF |
treatment provided by |
Felipe |
scientific name |
Xystoscolex boreogyrus |
status |
sp. nov. |
Xystoscolex boreogyrus sp. nov.
Figs. 3 View Fig , 4A, C–F View Fig , 5 View Fig , 6A, E View Fig .
Etymology: From the Greek words boreas (northern) and gyros (ring), a reference to both the prominent tubercles encircling the posterior trunk and also the midnight sun encircling the Arctic skies.
Holotype: MGUH 29144 View Materials ( Figs. 3C View Fig , 6E View Fig ).
Type locality: Peary Land, central North Greenland, situated at the south−western end of the broad valley (Sirius Passet) that connects J.P. Koch Fjord and Brainard Sund; latitude 82 ° 47.6’N, longitude 42 ° 13.3’W, altitude 450 m above sea level GoogleMaps .
Type horizon: Lower part of the Buen Formation (lower Cambrian, provisional Series 2, Stage 3), equivalent to the Nevadella Zone of North American usage.
Material.— The holotype and MGUH 29142–29147 View Materials , 29149 View Materials , 29150 View Materials , 29152 View Materials .
Diagnosis.—As for Chalozoscolex, but introvert with anterior spines. Trunk ornamentation substantially more subdued and posterior trunk with larger number of tuberculate segments encircling body.
Stratigraphic and geographic range.—Buen Formation (Stage 3 of provisional Cambrian Series 2, equivalent to Nevadella Zone ), Peary Land (North Greenland).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.