Abstract
Nine ichnospecies are recorded from the lower part of the Wulff Land Formation (Early Wenlock) on the east side of the valley north of Apollo Sø in Wulff Land, western North Greenland. There, the formation consists of a siliciclastic slope sequence of dark grey mudstones interbedded with subordinate siltstones and sandstones. The trace fossils are: cf. Chondrites ichnosp., Gordia marina, Helminthopsis ichnosp., Megagrapton irregulare, Muensteria ichnosp., Neonereites multiserialis ichnosp. nov., Nereites jacksoni, Paleodictyon (Glenodictyon) imperfectum and Paleodictyon ichnosp. In addition to containing a new ichnospeciesy the assemblage documents only the second detailed account of trace fossils in Lower Palaeozoic slope sequences; most of the ichnospecies have not been recorded previously in such sequences.
Highlights
Nine ichnospecies are recorded from the lower part of the Wulff Land Formation (Early Wenlock) on the east side of the valley north of Apollo Sø in Wulff Land, western North Greenland
The only trace fossils described in detail from such a sequence are those from Arctic Canada (Narbonne, 1984) which occur in a similar sequence to that in North Greenland
The trace fossils documented here, which were collected during a rapid preliminary reconnaisance of the area, are important on two accounts: first as records, per se, of the types of traces to be found in Lower Palaeozoic slope deposits and, secondly, their documentation offsets the imbalance of trace fossil descriptions in the existing literature
Summary
The Lower Paiaeozoic of North Greenland comprises cxtcnsivc outcrops af southerly platform and northerly deep-watcr sediments (fig. l) which represent the eastward canlin· uarion of the Franklinian Basin af adjacent Ellesrnerc Island, Canada (Trettin, 1971; Kerr, 1976; Peel, 1982). The Lower Paiaeozoic of North Greenland comprises cxtcnsivc outcrops af southerly platform and northerly deep-watcr sediments Wulff land Formation: Lower Wenlock to Lower ludlow slope and basin plain mudstones and siltslones. The Wulff Land Formation comprises dark grey siliciC!astic mudstones interbedded with subordinate thin beds af siltstones and finc-grainecl sandstones, wllich have becn intcrpreted as slope and basin plain deposits (Hurst & Surlyk, 1982). Sediments af tlle Wulff Land Formation intcrdigitate with and are overlain by turbidites of the Lauge Koch Land forma~ lion (Hurst & Surlyk, 1982). The Wulff Land Formation extends northwards, the samples described here are from tile most proximal areas to tlle platform wllere stceper than general dips and intercalated slumped horizolls are suggestive of depo
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
