Species: secans NEWBERRY, 1873
Etymology:

Cotype: AMNH 275

Locality: Delaware, Delaware County, Ohio.

Horizon: Delaware Limestone.

Biostratigraphy:

Age: Middle Devonian.

Mateerial: Block of limestone with 3 dental plates of one individual.

Cotypes:

AMNH 283: Upper dental plate, lacking tipe of “tooth”.

AMNH 287: Right lower dental plate.

Referred material:

HANSEN, 1997

OSU 3789: Upper tooth.

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Species: excavatus NEWBERRY, 1875
Etymology:

Holotype:

Locality: Iowa.

Horizon: Cedar Valley Limestone.

Biostratigraphy:

Age: Givetian Stage, Upper Mid Devonian Epoch, Middle Devonian.

Material:

Referred material:

HUSSAKOF & BRYANT, 1918

Locality: Milwaukee, Milwaukee County, Wisconsin.

Horizon: Hamilton Limestone.

Biostratigraphy:

Age: Givetian Stage, Upper Mid Devonian Epoch, Middle Devonian.

Material:

Museum of the Buffalo Society of Natural Science, E. 1879: Left lower dental plate.

E. 1880: Right lower dental plate.

E. 1881: Right lower dental plate.

HUSSAKOF, 1908

Locality: Brown Deer, Milwaukee County, Wiscoinsin.

Horizon: Hamilton, Milwaukee Formation.

Biostratigraphy:

Age: Givetian Stage, Upper Mid Devonian Epoch, Middle Devonian.

Material:

AMNH 1083: Small dental plate.

= Rhynchodus occidentalis NEWBERRY, 1878
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

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Species: major EASTMAN, 1898
Etymology:

Holotype:

Locality: Eifel, (Rhenish Prussia), Rhieland-Pfalz State, Germany.

Horizon: Crionidenmerg.

Biostratigraphy:

Age: Eifelain Stage, Lower Mid Devonian Epoch, Middle Devonian.

Material:

Reerred material:

= Rhynchodus emigratus HUENE, 1900
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

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Species: rostratus EASTMAN, 1898
Etymology:

Holotype:

Locality: Eifel, Rhieland-Pfalz State, Germany.

Horizon:

Biostratigraphy:

Age: Givetian Stage, Upper Mid Devonian Epoch, Middle Devonian.

Material: Dental plates.

Note: Based on part of Physichthys hoeninghausi MEYER, 1856.
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Species: tetrodon (JAEKEL, 1903)
Etymology:
= Ramphodus tetrodon JAKELE, 1903 non DAVIS, 1883
= Rhamphodus tetrodon JAEKEL, 1906
= Rhamphodontus tetrodon JAEKEL, 1906 teste GROSS, 1933

Holotype:

Locality: Bad Wildungen, Hesse State, Germany.

Horizon: Kellwasserkalk of the Manticoceras beds.

Biostratigraphy:

Age: Upper Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material:
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Species: pertenuis EASTMAN, 1904
Etymology:

Holotype:

Locality: Franklin, Delaware County, New York.

Horizon: Kattel shale of Napels Group.

Biostratigraphy:

Age: Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material: Fragmentary remains.
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Species: telleri HUSSAKOF & BYRANT, 1918
Etymology:

Cotypes: Museum of the Buffalo Society of Natural Science, E. 2436, E. 1927

Locality: Eighteen Mile Creek, Near North Evans, Erie County, New York.

Horizon: North Evans Limestone.

Biostratigraphy:

Age: Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material: Dental plates.

Referred material;

E. 2435: A dental palte in matrix.

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Species: ornatus HUSSAKOF & BRYANT, 1918
Etymology:

Holotype: Museum of the Buffalo Society of Natural Science, E. 1950, 1950 (a)

Locality: Eighteen Mile Creek, near North Evans, Erie County, New York.

Horizon: North Evans Limestone.

Biostratigraphy:

Age: Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material: Dental plates.

Referred material:

E. 1947: 2 dental plates.

E. 1947a:

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Species: eximius (JAEKEL, 1919)
Etymology:
= Rhynchodontus eximius JAEKEL, 1919
= Rhynchosteus eximius JAEKEL, 1925
= Rhamphodontus eximius (JAEKEL, 1919) WATSON, 1934

Holotype:

Locality: Bad Wildungen, Hesse State, Germany.

Horizon: Kellwasserkalk of the Manticoceras beds.

Biostratigraphy:

Age: Upper Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material:

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Species: wildungensis (JAEKEL, 1929)
Etymology:
= Rhynchognathus wildungensis JAEKEL, 1929

Holotype:

Locality: Bad Wildungen, Hesse State, Germany.

Horizon: Kellwasserkalk of the Manticoceras beds.

Biostratigraphy:

Age: Upper Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material:
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Species: marginalis GORIZDRO-KULCZYCKA, 1934
Etymology:

Holotype:

Locality: Holy Cross Mountains, Poland.

Horizon: Calcaire a Hypothyridina corunula.

Biostratigraphy:

Age: Frasnian Stage, Lower Late Devonian Epoch, Late Devonian.

Material: Dental plate.
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