3.0 mi SE of Teeswater (Devonian of Canada)

Also known as Fagerstrom #43

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

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Not explicitly stated as Emsian in this ref; however, it is in Ludvigsen (1986). [JA: the Formosa Reef Limestone is actually 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]."

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 3850: authorized by John Alroy, entered by Mike Sommers on 10.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

 Proetida - Proetidae
Dechenella (Dechenella) ? halli trilobite
subgn. (Dechenella) - originally entered as "Dechenella ? halli"
 Strophomenida - Douvillinidae
Cymostrophia sp. Caster 1939
sp. B
Cymostrophia sp. Caster 1939
sp. A
 Strophomenida - Strophodontidae
Megastrophia sp. Caster 1939
sp. A
Megastrophia (Megastrophia) proxicostellata
subgn. (Megastrophia), n. sp.
 Athyridida - Meristellidae
 Terebratulida - Cranaenidae
 Spiriferida - Cyrtinopsidae
 Pentamerida - Clorindidae
 Rhynchonellida - Stenoscismatidae
"Stenoscisma rhomboidalis" = Atribonium rhomboidale
"Stenoscisma rhomboidalis" = Atribonium rhomboidale Fagerstrom 1961
 Euomphalina - Platyceratidae
Platyceras cf. erectum Hall 1843 snail
originally entered as "Platyceras cf. erectum"
 Stauriida - Eridophyllidae
Acinophyllum mclareni horn coral
n. sp.