Teeswater River Knoll (Devonian of Canada)

Also known as Fagerstrom #53

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)

• 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 3853: authorized by John Alroy, entered by Mike Sommers on 10.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
 Proetida - Proetidae
Dechenella (Dechenella) ? halli trilobite
subgn. (Dechenella) - originally entered as "Dechenella ? halli"
Rhynchonellata
 Athyridida - Meristellidae
 Terebratulida - Cryptonellidae
 Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
sp. A
 Spiriferida - Hysterolitidae
 Spiriferida - Elythidae
"Elytha formosensis" = Elita
"Elytha formosensis" = Elita
n. sp.
 Pentamerida - Clorindidae
 Rhynchonellida - Camarotoechiidae
Bivalvia
 Mytilida - Mytilidae
? Mytilidae indet. Rafinesque 1815 mussel
Genus A sp. A - originally entered as "? Mytilidae indet."
Gastropoda
 Euomphalina - Euomphalidae
Straparollus sp. de Montfort 1810 snail
originally entered as "Straparolus sp."
 Murchisoniina - Gosseletinidae
"Mourlonia confertinemilata" = Pleurorima confertinemilata
"Mourlonia confertinemilata" = Pleurorima confertinemilata Fagerstrom 1961 snail
n. sp.
Cephalopoda
 Nautilida - Rutoceratidae
Goldringia cf. ammon nautiloid
originally entered as "Goldringia cf. ammon"
Stromatoporoidea
 Stromatoporellida - Stromatoporellidae
Anthozoa
 Stauriida - Eridophyllidae
Acinophyllum mclareni horn coral
n. sp.