Depth related brachiopod faunas from the lower Cambrian Forteau Formation of southern Labrador and western Newfoundland, Canada

Linguliform brachiopods from the Cambrian (Guzhangian) Karpinsk Formation of Novaya Zemlya

“…The data presented by Skovsted et al . (2017) show a close association of Acrothyra and Hadrotreta with outer shelf settings, which is consistent with the distribution of these taxa in the Wuliuan deposits of Novaya Zemlya, where they occur in limestone nodules within laminated, grey shale as well as co‐occurring with the trilobite Ellipsocephalus (Solovyev et al . 1986).…”

“…Acrothyra is otherwise confined to Laurentia (Rowell 1980; Skovsted et al . 2017), while the poorly known type species Acrothyra proavia (Matthew, 1899), probably originated from the West Avalonia location at Cape Breton, suggesting that it was dispersed across the Iapetus Ocean during Miaolingian time. This is supported also by its Baltica (Novaya Zemlya) occurrence.…”

Early Cambrian Small Shelly Fossils from northwest Mexico: Biostratigraphic implications for Laurentia

“…Due to their great biostratigraphic potential, lower Cambrian SSFs have been largely studied in major palaeocontinents, but remain relatively poorly studied in Laurentia. Recent studies have mainly focused on the upper lower Cambrian of the southeastern palaeomargin of Laurentia, especially from Greenland (Skovsted and Peel, 2001;Skovsted, 2003a;Skovsted and Holmer, 2003;Skovsted, 2004Skovsted, , 2005Skovsted and Holmer, 2005;Peel and Skovsted, 2005;Skovsted, 2006a;Peel et al, 2016;Skovsted, 2016), eastern USA (Landing and Bartowski, 1996;Skovsted and Peel, 2010), western Newfoundland (Skovsted, 2003b;Skovsted and Peel, 2007;Skovsted et al, 2017), Quebec (Landing et al, 2002) and Labrador (Spencer, 1980;Skovsted et al, 2017). But SSF data are severely lacking from older Cambrian strata and from the northern and western palaeomargins of this palaeocontinent, where successions are often dominated by dolostones, sandstones and shales that are unfavourable for SSF preservation.…”

Mobergellans from the early Cambrian of Greenland and Labrador: new morphological details and implications for the functional morphology of mobergellans

“…In southern Labrador (eastern Canada), Discinella micans occurs in the lower part of the Forteau Formation (Labrador Group). The species is relatively common in the basal Devils Cove member and in the overlying Middle Shale member (see Knight 2013; Knight and Boyce, 2015; Skovsted et al, in press for detailed characterization of the Forteau Formation). In our material, D. micans occurs in interreef limestones mainly composed of echinoderm shell debris adjacent to the archaeocyathid patch reefs, which formed in an inboard shelf setting during a transgression (Spencer, 1980; Skovsted et al, in press).…”

“…The species is relatively common in the basal Devils Cove member and in the overlying Middle Shale member (see Knight 2013; Knight and Boyce, 2015; Skovsted et al, in press for detailed characterization of the Forteau Formation). In our material, D. micans occurs in interreef limestones mainly composed of echinoderm shell debris adjacent to the archaeocyathid patch reefs, which formed in an inboard shelf setting during a transgression (Spencer, 1980; Skovsted et al, in press). Discinella micans also occurs in the Devils Cove member of the Forteau Formation in western Newfoundland (CBS, personal observation, 2016), but these specimens have not been closely studied in the present work.…”