Rockport Quarry Limestone

|?M. sp.

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|A single specimen (UMMP 13047).

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|P. cf. P. sophiae

|Alpena, Michigan.{{Cite journal |last1=Swinehart |first1=Anthony L. |last2=Hoenig |first2=Matthew M. J. |last3=Ginter |first3=Michal |date=July 2020 |title=A New Addition to the Devonian Elasmobranch Fauna of Michigan, U.S.A. |url=https://bioone.org/journals/the-american-midland-naturalist/volume-184/issue-1/0003-0031-184.1.109/A-New-Addition-to-the-Devonian-Elasmobranch-Fauna-of-Michigan/10.1637/0003-0031-184.1.109.full |journal=The American Midland Naturalist |volume=184 |issue=1 |pages=109–115 |doi=10.1637/0003-0031-184.1.109 |doi-broken-date=1 November 2024 |issn=0003-0031}}

|A tooth.

|An early elasmobranch.

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|?T. sp.

|"At the abandoned Kelly Island Limestone Quarry at Rockport State Park, Alpena County".

|A single small spine (UMMP 13147).

|A ctenacanthoid.

|File:An examination of the Devonian fishes of Michigan fig-4-d.png

|D. sp.

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|An arthrodire.

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|D. sp.

|Rockport Quarry, Alpena County.

|A single incomplete right anterior ventrolateral (UMMP 16152).

|An arthrodire.

|File:An examination of the Devonian fishes of Michigan fig-4-c.png

|?H. rugosum

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|A single specimen (UMMP 3898).

|An arthrodire.

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|26 specimens.

|An arthrodire.

|File:An examination of the Devonian fishes of Michigan fig-4-a.png

|M. sp.

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|A single specimen (UMMP 13612).

|An arthrodire.

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|At the abandoned Kelly Island Limestone Quarry at Rockport State Park, Alpena County.

|2 specimens (7M, VP. 522.)

|Placoderms of unknown affinity.

|File:An examination of the Devonian fishes of Michigan fig-4-b.png

|P. rockportensis

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|59 specimens.

|An arthrodire.

|File:An examination of the Devonian fishes of Michigan fig-6-full.png

|P. sp.

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|A single specimen (UMMP 13045).

|A ptyctodontid.

|File:Ptyctodus compressus.jpg

|C. mediolatus

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|{{Cite journal |last=Imbrie |first=John |date=1959 |title=Brachiopods of the Traverse group (Devonian) of Michigan. Part 1, Dalmanellacea, Pentameracea, Strophomenacea, Orthotetacea, Chonetacea, and Productacea. Bulletin of the AMNH ; v. 116, article 4 |hdl=2246/1258 |url=https://digitallibrary.amnh.org/handle/2246/1258 |language=en-US}}

|Also found in the Bell Shale, Ferron Point Formation and St. Laurent Limestone.

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|P. sp. B

|Basal 8 inches of the formation.

|2 specimens.

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|P. gracilis gracilis

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|Also found in the Bell, Ferron Point and Genshaw formations.

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|S. ferronensis

|Basal 8 inches of the formation.

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|Also found in the Bell Shale, Ferron Point Formation and Silica Shale.

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|S. crassa

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|Also found in the lower Bell Shale, Ferron Point Formation and Arkona Shale.

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|S. mutocosta

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|Also found in the Bell, Ferron Point, Four Mile Dam, Beebe School, Thunder Bay and Potter Farm formations.

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|S. extenuata rockportensis

|Lower 8 inches of the formation.

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|T. rockportensis

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|{{Cite journal |last1=Rogers |first1=Frederick S. |last2=Pitrat |first2=Charles W. |date=1987 |title=Distribution of Tylothyris (Brachiopoda) and Its Occurrence in the Traverse Group (Middle Devonian) of Michigan |url=https://www.jstor.org/stable/1305304 |journal=Journal of Paleontology |volume=61 |issue=3 |pages=494–507 |doi=10.1017/S0022336000028651 |jstor=1305304 |bibcode=1987JPal...61..494R |s2cid=130922140 |issn=0022-3360}}

|Appears to be endemic to the Michigan Basin.

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|Also found in the Cedar Valley, Milwaukee, Mineola, Bell, Ferron Point, Genshaw, Alpena, Gravel Point, Norway Point and Potter Farm formations.

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|Species A

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|{{Cite journal |last=Cookman |first=C. W. |date=1976 |title=Petrology of the Rockport Quarry Limestone (Middle Devonian Traverse Group) Alpena, Presque Isle and Montmorency Counties, Michigan |s2cid=130419618 |language=en}}

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|Species A

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|P. rockportensis

|Basal part of the formation.{{Cite journal |last=Kesling |first=R. V. |date=1953 |title=A New Beyrichiid Ostracod from the Middle Devonian Rockport Quarry Limestone of Michigan |s2cid=127104889 |language=en}}

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|An ostracod.

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|"Observed as disaggregated ossicles, ossicles stacked en echellon, and fragments of columnals".

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|"All specimens collected as single-hand specimens".

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| 200 m south of the large sinkhole on the west wall of Rockport Quarry.

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|C. sp. A

|"Abandoned quarry of the Onaway Limestone Company on the shore of Black Lake".

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|"Abandoned quarry of the Onaway Limestone Company on the shore of Black Lake".

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|Indeterminate

|200 m south of the large sinkhole on the west wall of Rockport Quarry.

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|"Observed as transverse sections, most specimens now irregular in shape due to crushing".

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|Indeterminate

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|"Spherical bodies 3-5 microns in diameter".

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|"Some post-depositional crushing of the sample has occurred".

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|"Abandoned quarry of the Onaway Limestone Company on the shore of Black Lake".

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|"Found sparsely as solitary individuals in 6 specimens".

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