Chalazoscolex pharkus, Morris & Peel, 2010
publication ID |
https://doi.org/ 10.4202/app.2009.0058 |
persistent identifier |
https://treatment.plazi.org/id/DF7087DF-FFFC-243A-B47B-C808FB3DFE10 |
treatment provided by |
Felipe |
scientific name |
Chalazoscolex pharkus |
status |
sp. nov. |
Chalazoscolex pharkus sp. nov.
Figs. 1 View Fig , 2, 4B, G View Fig , 6B–D, F View Fig .
Etymology: From the Greek for wrinkled (pharkidos), in reference to the trunk ornamentation.
Holotype: MGUH 29133 View Materials ( Figs. 1A View Fig , 6B 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 29134–29141 View Materials , 29148 View Materials , 29151 View Materials .
Diagnosis.—Palaeoscolecidan with introvert and trunk in two regions. Introvert with dense array of simple scalids. Anterior and median trunk with two types of ornamentation: ca. 140 segments with simple sclerites and longitudinal folds, separated by smoother zones. Posterior trunk with ca. 15 segments bearing more prominent sclerites. Gut includes anterior pharynx and straight intestine.
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.