Mistaken Point E (Ediacaran of Canada)

Where: Newfoundland and Labrador, Canada (46.6° N, 53.2° W: paleocoordinates 74.5° S, 95.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Avalon other zone, Mistaken Point Formation (Conception Group), Ediacaran (635.0 - 541.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified, graded, fine-grained, medium, tuffaceous, muddy mudstone

• See WOOD, D. A., R. W. DALRYMPLE, G. M. NARBONNE, J. G. GEHLING, AND M. E. CLAPHAM. 2003. Paleoenvironmental analysis of the late Neoproterozoic Mistaken Point and Trepassey formations, southeastern Newfoundland. Canadian Journal of Earth Sciences, 40:1375–1391.
• The Mistaken Point Formation is dominated by fine to medium-grained turbidites interspersed with thin interturbidite siltstone beds that contain the fossil horizons (Narbonne et al., 2001; Wood et al., 2003). These fossil beds are covered by a veneer of volcanic ash, which smothered the frondose organisms and accelerated the lithification process, thereby allowing for the preservation of high-relief fossil fronds on upper bedding plane surfaces. The crystal size of the tuff preserving the fossils limits the fidelity of the finer structure discernible in Mistaken Point fronds.

Size class: macrofossils

Preservation: mold/impression

Reposited in the ROM

Collection methods: surface (in situ),

• Fossils occur within an ecological and prohibits future collection, but some specimens were previously collected by the Royal Ontario Museum (ROM)

Primary reference: M. Laflamme, G. M. Narbonne, and M. M. Anderson. 2004. Morphometric analysis of the Ediacaran frond Charniodiscus from the Mistaken Point Formation, Newfoundland. Journal of Paleontology 78(5):827-837 [M. Laflamme/M. Laflamme]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89095: authorized by Marc Laflamme, entered by Marc Laflamme on 04.05.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Thectardis avalonensis
  -
Thectardis avalonensis2
Thectardis avalonensis2 Clapham et al. 2004 triangle
 Arboreomorpha -
Charniodiscus procerus, "Charniodiscus spinosus" = Arborea spinosa
Charniodiscus procerus Laflamme et al. 2004 frond
"Charniodiscus spinosus" = Arborea spinosa Laflamme et al. 2004 Frond
 Rangeomorpha - Charniidae
Charnia masoni5
Charnia masoni5 Ford 1958
 Rangeomorpha -
Beothukis mistakensis6, Bradgatia linfordensis3, Fractofusus misrai4, Fractofusus andersoni4, Hapsidophyllas flexibilis1
Beothukis mistakensis6 Brasier and Antcliffe 2009
Bradgatia linfordensis3 Boynton and Ford 1995
Fractofusus misrai4 Gehling and Narbonne 2007 Spindle
Fractofusus andersoni4 Gehling and Narbonne 2007 Spindle
Hapsidophyllas flexibilis1 Bamforth and Narbonne 2009
1Bamforth and Narbonne 2009; 2Clapham et al. 2004; 3Flude and Narbonne 2008; 4Gehling and Narbonne 2007; 5Laflamme et al. 2007; 6Narbonne et al. 2009