Some Cambrian Rocks
Zhongyicun Member of the Zhujiaqing Formation - fossiliferous peloidal phosphorite (lower Meishucunian
Stage, lower Lower Cambrian) from near Ercaicun, Yunnan Province, China.
Dreamer's Hope Carbonatite - carbonatite (late Early Cambrian, ~524 Ma) from
Road Gulch, Colorado, USA.
Echo Shale Member of the Carrara Formation - fossiliferous greenish mudrock (upper Dyeran Stage,
upper Lower Cambrian) with olenelloid trilobite cephalon from Emigrant Pass
West, southern California, USA.
Umberumberka Lode - 510-520 Ma (late Early Cambrian to early Middle
Cambrian) argentiferous galena hydrothermal vein intruding Willyama Supergroup
tourmalinite from the Umberumberka Mine, New South Wales, Australia.
Little Port Complex - Middle Cambrian (505 Ma) chromitic serpentinite
with cumulate texture (left) & dunite with wehrlite and clinopyroxenite
(right) from the Lewis Hills, Newfoundland, Canada.
Burgess Shale Formation, "Ogygopsis
Beds" - fossiliferous,
calcareous mudshale with Ogygopsis klotzi trilobite (lower Marjuman
Stage, middle Middle Cambrian) at Mt. Stephen, near Field, British Columbia,
Canada.
Burgess Shale Formation, Walcott Quarry Member - fossiliferous mudshales with Anomalocaris
canadensis grasping claw (left) and mouthpiece (center) & Eldonia
ludwigi (right) (lower Marjuman Stage, middle Middle Cambrian) from the
Walcott Quarry, near Field, British Columbia, Canada.
Burgess Shale Formation, Walcott Quarry Member - fossiliferous mudshales with Marrella splendens
(left) & Naraoia compacta (center & right) (lower
Marjuman Stage, middle Middle Cambrian) from the Walcott Quarry, near Field, British
Columbia, Canada.
Jince Formation - fossiliferous mudrocks with Paradoxides minor
trilobite (left) & Ellipsocephalus hoffii trilobites (right) from
the upper Middle Cambrian of the Jince area, Bohemia.
Wheeler Formation - fossiliferous mudshales with Peronopsis
interstricta agnostoid trilobites (left & center) & Chancelloria
eros coeloscleritophoran skeleton (Marjuman Stage, upper Middle Cambrian)
from the House Range, Utah, USA.
Alum Shale Formation - petroliferous fossiliferous packstone with Agnostus
pisiformis agnostoid trilobites (upper Middle Cambrian) from Andrarum,
Sweden.
Big Horse Limestone Member of the Orr Formation - fossiliferous limestone (near-uppermost Marjuman
Stage, ~uppermost Middle Cambrian) from Little Horse Canyon, Utah, USA.
Kushan Formation - fossiliferous limestone with Drepanura
trilobites from the ~uppermost Middle Cambrian in Shandong Province, China.
Antietam Formation - quartzose sandstone with Skolithos burrows
from the Upper Cambrian in the Antietam area, Maryland, USA.
Eau Claire Formation - quartzose sandstone with abundant polymeroid
trilobite sclerites from the Upper Cambrian at Little Falls Dam, Wisconsin,
USA.