Formosa Village (Devonian of Canada)

Also known as Fagerstrom #1

Where: Ontario, Canada (44.0° N, 81.3° W: paleocoordinates 37.0° S, 27.7° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Formosa Reef Limestone Member (Amherstburg Formation), Eifelian (393.3 - 387.7 Ma)

• JA: originally entered as Emsian, but the Formosa Reef Limestone is Eifelian (see Edinger et al. 2002)

• member-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, gray reef rocks and lime mudstone

• "The bulk of the reef comprises poorly bedded stromatoporoidal boundstone and minor coralline boundstone in a matrix of lime mudstone and wackestone. [Ludvigsen, 1986]."

Size class: macrofossils

Primary reference: J. A. Fagerstrom. 1961. The fauna of the Middle Devonian Formosa Reef Limestone of southwestern Ontario. Journal of Paleontology 35(1):1-48 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3844: authorized by John Alroy, entered by Mike Sommers on 10.08.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Proetida - Proetidae
Proetus (Crassiproetus) crassimarginatus Hall 1843 trilobite
subgn. (Crassiproetus)
Strophomenata
 Strophomenida - Strophodontidae
Megastrophia (Megastrophia) proxicostellata
subgn. (Megastrophia); n. sp.
Rhynchonellata
 Athyridida - Meristellidae
 Terebratulida - Cryptonellidae
 Terebratulida - Cranaenidae
 Spiriferida - Hysterolitidae
 Pentamerida - Clorindidae
 Rhynchonellida - Camarotoechiidae
Gastropoda
 Murchisoniina - Gosseletinidae
"Mourlonia confertinemilata" = Pleurorima confertinemilata
"Mourlonia confertinemilata" = Pleurorima confertinemilata Fagerstrom 1961 snail
n. sp.
 Murchisoniina -
Murchisonioidea indet. Koken 1896 snail
Cephalopoda
 Oncocerida - Brevicoceratidae
? Exocyrtoceras sp. Flower 1938
originally entered as "? Exocyrtoceras sp."
Anthozoa
 Stauriida - Amplexidae
? Heterophrentis sp. Billings 1875 horn coral
originally entered as "? Heterophrentis sp."