Lower Ordovician trilobites from the Septembersø formation, North-East Greenland

Autor:	Lucy M. E. McCobb, W. Douglas Boyce, Svend Stouge, Ian Knight
Rok vydání:	2014
Předmět:	biology Fauna Bolbocephalus Paleontology Ecological succession biology.organism_classification Trilobite Cape Group (stratigraphy) Ordovician Laurentia Ecology Evolution Behavior and Systematics Geology
Zdroj:	Alcheringa: An Australasian Journal of Palaeontology. 38:575-598
ISSN:	1752-0754 0311-5518
DOI:	10.1080/03115518.2014.951913
Popis:	McCobb, L.M.E., Boyce, W.D., Knight, I. & Stouge, S., 2014. Lower Ordovician trilobites from the Septemberso formation, North-East Greenland. Alcheringa 38, 575–598. ISSN 0311-5518.The informally named Septemberso formation is a 76 m thick succession of microbial and peritidal shelf carbonates deposited on the North-East Greenland shelf of Laurentia. The formation, assigned to the lower part of the Cape Weber Formation in all previous studies, lies disconformably upon the Skullrockian Antiklinalbugt Formation (revised) and conformably below the Tulean to Blackhillsian Cape Weber Formation (revised) in the Fimbulfjeld Group. With the exception of Randaynia, the modest trilobite fauna recovered from the Septemberso formation consists exclusively of bathyurids, and all represent new species. Both Chapmanopyge knudseni sp. nov. and Punka adamsi sp. nov. are represented by sufficient material to merit specific names. The remaining taxa, belonging to Bolbocephalus, Peltabellia, Randaynia and Chapmanopyge are le...
Databáze:	OpenAIRE
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