Port Colborne Quarry bioherm (Devonian of Canada)

Also known as Reef 1485; was Port Colborne Quarry bioherm, Edgecliff Member, Onondaga Formation

Where: Ontario, Canada (42.9° N, 79.3° W: paleocoordinates 36.3° S, 26.6° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Edgecliff Member (Onondaga Formation), Givetian (387.7 - 382.7 Ma)

• member-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; shelly/skeletal, gray, calcareous packstone

• biohermal complex with eight distinct facies ranging from crinoidal grainstones to fissile shales and including wackestones, packestones, and mudstone; corals predominantly from well bedded, light gray to blue, coral-rich, crinoidal packstones with distinct coral-rich fissile shale interbeds

Size class: macrofossils

Preservation: original calcite, replaced with silica

Collection methods: mechanical,

Primary reference: C. T. Johnston. 1990. Bioherm Development in the Edgecliff Member of the Onondaga Formation, Port Colburne, Ontario. 1-91 [A. Miller/K. Layou/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 9476: authorized by Arnold Miller, entered by Karen Layou on 15.11.2000, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• corals were the most predominant fauna and thus identified to a generic level, other fauna listed in broad taxonomic categories
unclassified
  -
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet. stromatoporoid sponge
Anthozoa
 Stauriida - Zaphrentidae
Heliophyllum halli, "Zaphrentis sp." = Zaphrenthis
Heliophyllum halli Edwards and Haime 1851 horn coral
"Zaphrentis sp." = Zaphrenthis Rafinesque and Clifford 1820 horn coral
 Stauriida - Halliidae
 Cystiphyllida - Cystiphyllidae
Cystiphyllum vesiculosum Goldfuss 1826 horn coral
 Favositida - Favositidae
Favosites emmonsia tabulate coral
Favosites canadensis Billings 1858 tabulate coral
Favosites basalticus Goldfuss 1826 tabulate coral
 Favositida - Micheliniidae
Pleurodictyum sp. Goldfuss 1829 tabulate coral
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
tubinate and platyceratid gastropods
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Trilobita
 Proetida - Proetidae
"Dechenella (Dechenella) delphinula" = Dechenella planimarginata1
"Dechenella (Dechenella) delphinula" = Dechenella planimarginata1 Meek 1871 trilobite
 Phacopida - Phacopidae
"Phacops canadensis" = Viaphacops canadensis2, "Phacops pipa" = Viaphacops pipa2, "Phacops cristata" = Viaphacops cristatus2
"Phacops canadensis" = Viaphacops canadensis2 Stumm 1954 trilobite
"Phacops pipa" = Viaphacops pipa2 Hall and Clarke 1888 trilobite
"Phacops cristata" = Viaphacops cristatus2 Hall 1861 trilobite
unclassified
  -