Dundee Limestone

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Dundee Limestone
Stratigraphic range: Middle Devonian,
397.5โ€“391.8 Ma
TypeFormation
UnderliesTraverse Group, Rogers City Limestone, and Silica Formation
OverliesAnderdon Limestone, Detroit River Group, and Lucas Formation
Thickness144.78 metres (475.0 ft)
Lithology
Primarylimestone, dolomite, chert
Location
RegionOntario, Michigan, and Ohio
CountryUnited States, Canada
Type section
Named forDundee, Michigan

Dundee Limestone (also referred to as the "Columbus" Limestone) is a geologic formation in Michigan, Ohio and Ontario. It preserves fossils dating back to the Middle Devonian.

Description

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The Dundee Limestone is named after Dundee, the area where the original outcrops were found . It is, as the name states, made up of limestones, though the makeup of the limestone change throughout the strata. These are able to be divided into two units. The upper strata of Dundee are made up of medium to course grain limestone and is where most fossils from the limestone are present. The lower strata are made up of sandy dolomite along with limestone and nodular chert.[1][2]

The limestone represents the Dundee Sea, a shallow sea named after the limestone. There is only a small amount of macrofossils known from the lower Dundee which contrasts the nearby Delaware Limestone. This lack of macrofossils can potentially be attributed to highly saline periods of time. As time went on, there is evidence that a lagoon or another near-shore environment formed, allowing for an influx of fauna.[2]

Paleobiotia

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Annelida

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Genus Species Notes Image
Eunicites[3] E. effusus
E. euconus
E. extensus
Ildraites[3] I. eminulus
Marleneites[3] M. elatus
M. explicatus
Nereidavus[3] N. exploratus
Paleoenonites[3] P. editus
P. exsertus
Staurocephalites[3] S. eucharis
S. ejectus

Anthozoa

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Genus Species Notes Image
Favosites[4] F. "turbinatus"
File:Favosites (10.1371-journal.pone.0149767) Figure 3.tiff
Heterophrentis[4] H. prolifica
Hexagonaria[4][5] H. alternata
H. anna
File:Hexagonaria sp.jpg
H. sp. aff. H. coalita
H. parva
H. stewartae
H. tabulata
H. tabulata convexa
H. truncata
H. sp. A aff. H. truncata
H. sp. B aff. H. prisma

Brachiopoda

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Genus Species Notes Image
Atrypa[4] A. costata
File:Atrypa reticularis pedunculate Gondelsheim CRF.jpg
A. elegans grabau
Brachyspirifer[4] B. lucasensis
File:Brachyspirifer audaculus.jpg
B. manni
Cyrtospirifer[4] C. sp. aff. grieri
File:Cyrtospirifer verneuili duo.jpg
Megastrophia[4] M. sp. aff. hemispherica
File:Megastrophia (fossil brachiopod) with encrusting Hederella (Silica Formation, Middle Devonian; quarry in Lucas County, Ohio, USA).jpg
Pholidostronhia[4] P. nacrea
Protoleptostrophia[4] P. perplana
Rhipidomella [4] R. variabilis
Schizophoria[4] S. folevi
File:Schizophoria.jpg
Spinulicosta[6][4] S. spinulicosta
Stropheodonta[4] S. sp. aff. demissa
File:Stropheodonta demissa.jpg

Bryozoa

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Genus Species Notes Image
Sulcoretepora[4] S. gilberti
File:Sulcoretepora deissi - National Museum of Nature and Science, Tokyo - DSC07728.JPG

Charophyta

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Genus Species Notes Image
Trochiliscus[7] T. bellatulus

Conodonta

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Genus Species Notes Image
Acodina[8] A. formosa
Angulodus[8] A. walrathi
Bryantodus[8] B. mundus
Hibbardella[8] H. austinensis
H. hawkeyensa
H. separata
H. triangularis
H. n. sp. A
H. n. sp. B
Icriodus[8] I. angustus
I. "cymbiformis"
I. nodosus
I. sp. aff. I. eslaensi
I. latericrescens subsp. A
I. postifexus
Neoprioniodus[8] N. alatus
N. bicuwatus
N. n. sp.
N. pronus
Ozarkodina[8] O. congesta
O. lata
Paltodus[8] P. n. sp.
Plectospathodus[8] P. n. sp.
Polygnathus[8] P. eiflia
File:Polygnathus Pa elements.png
P. linguiformis
P. robusticostata
P. webbi
Prioniodus[8] P. aversa
File:Bulletin of the Buffalo Society of Natural Sciences (1919) (19820165934).jpg

incertae sedis

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Genus Species Notes Image
Coleolus[4] C. sp. aff. C. carbonarius

Mollusca

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Genus Species Notes Image
Conocardium[4] C. subtrigonale
File:Conocardiumkonincki.jpg
Cornellites[4] C. flabella
Michelinoceras M. ohioensis
File:Michelinoceras.jpg
Paracydas [4] P. proavia
Platyceras[4] P. carinatum
File:PlatycerasLoganOhio.jpg
P. dumosum
P. keoughi
Pleuronotus[4] P. decewi
File:Pleuronotus radiatus.jpg

Osteichthyes

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Genus Species Notes Image
Onychodus[9] O. eriensis
File:Onychodus jandemarrai holotype skull.png

Ostracoda

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Genus Species Notes Image
Barychilina[10] B. periptyches
Dizygopleura[10] D. compsa
Hollinella[10] H. variopapillata
Keslingolophia[10] K. chariessa
Octonaria[10] O. sp
Trypetera[10] T. barathrota

Tentaculitida

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Genus Species Notes Image
Tentaculites [4] T. scalariformis

Trilobita

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Genus Species Notes Image
Basidechenella[4] B. rowi
File:Basidechenella lucasensis (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 2 (48340429277) (cropped).jpg
Coronura[11] C. sp. aff. C. aspectans
File:Annual report of the Regents (1891) (14781545852).jpg
Crassiproetus[4] C. crassimarginatus
File:Crassiproetus.jpg
Dechenella[4] D. planimarginata
File:Dechenella fossil from the Devonian period, Iran.jpg
Phacops[12] P. rana
File:Phacops rana.jpg
Trypaulites[11] T. sp. aff. T. calypso
Viaphacops[4] V. cristatus
File:Viaphacops multicinctus lateral.jpg

References

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