Delphi Reef, Indiana (Silurian of the United States)

Also known as Reef 1863

Where: Indiana (40.6° N, 86.7° W: paleocoordinates 25.1° S, 52.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Louisville Formation, Niagaran (438.0 - 421.3 Ma)

• Middle Devonian rocks (Traverse Fm) unconformably overlie the peripheral area of the reef

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified reef rocks

Primary reference: A. W. Archer, D. J. Bottjer, A. S. Horrowitz, S. MKelly, D. L. Krisher and R. H. Shaver. 1980. Stratigraphy, structure, and zonation of large Silurian reef at Delphi, Indiana. AAPG Bulletin 64(1):115-131 [W. Kiessling/B. Bookhagen/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 22818: authorized by Wolfgang Kiessling, entered by Britta Bookhagen on 27.06.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Monomorella sp., Lechritochoceras desplainense, Protokoinoceras sp., Protokoinoceras medullare, Trimoceras gilberti, Crotalocrinus cora, Periechocrinites sp.
Crinoidea
 Sagenocrinida - Nipterocrinidae
Pycnosaccus sp.
 Monobathrida - Eucalyptocrinitidae
Calliocrinus cornutus, Calliocrinus cornutus
Calliocrinus cornutus Sea lily
subspecies excavatus
Rhombifera
 Hemicosmitoida - Caryocrinitidae
Caryocrinites sp.
Conodonta
  -
Spathognathodus cf. snadjri
Craniata
 Trimerellida - Trimerellidae
Dinobolus cf. conradi, Trimerella sp.
Trimerella sp. Billings 1862
Strophomenata
 Orthotetida - Schuchertellidae
Schuchertella subplana
 Strophomenida - Strophonellidae
Strophonella williamsi
Rhynchonellata
 Pentamerida - Pentameridae
"? Apopentamerus sp." = Harpidium (Isovella), Kirkidium laqueatum, Kirkidium spp., Kirkidium cf. knighti, Pentamerus oblungus
"? Apopentamerus sp." = Harpidium (Isovella) Breyvel and Breyvel 1970
Kirkidium spp. Amsden et al. 1967
Kirkidium cf. knighti Sowerby 1813
Pentamerus oblungus
subspecies cylindricus
 Pentamerida - Subrianidae
Conchidium sp., Conchidium cf. biolularis, Conchidium laqueatum, Conchidium exporrecta, Conchidium exporrecta
Conchidium sp. Oehlert 1887
Conchidium exporrecta
subspecies myrtia
 Spiriferida - Cyrtiidae
"Spirifer (Eospirifer) radiatus" = Eospirifer radiatus
"Spirifer (Eospirifer) radiatus" = Eospirifer radiatus Sowerby 1834
 Atrypida - Lissatrypidae
Lissatrypa sp.
Lissatrypa sp. Twenhofel 1914
 Atrypida - Atrypidae
Atrypa sp., Atrypa cf. reticularis, Plectatrypa sp.
Atrypa sp. Dalman 1828
Atrypa cf. reticularis Linnaeus 1758
Plectatrypa sp. Schuchert and Cooper 1930
 Orthida - Rhipidomellidae
Rhipidomella hybrida
Cephalopoda
  -
"Cephalopoda" indet.
 Ammonitida - Hoplitidae
"Dawsonoceras annulatum" = Orthocera annulata
"Dawsonoceras annulatum" = Orthocera annulata Sowerby 1816 ammonite
 Discosorida - Phragmoceratidae
Protophragmoceras hercules
Protophragmoceras hercules
subspecies carrollensis
 Ascocerida - Ascoceratidae
Ascoceras newberryi, Ascoceras wabashense
 Oncocerida -
Gomphoceras projectum, Gomphoceras wabashense
 Oncocerida - Hemiphragmoceratidae
Hexameroceras cacabiforme, Hexameroceras delphicolum
 Oncocerida - Trimeroceratidae
Pentameroceras cumingsi
 Orthocerida - Kionoceratidae
Kionoceras cancellatum, Kionoceras delphiense
Gastropoda
  -
"Gastropoda" indet., "Gastropoda" indet.
"Gastropoda" indet. Cuvier 1795 snail
"Gastropoda" indet. Cuvier 1795 snail
 Bellerophontida - Bucaniidae
Tremanotus sp., Tremanotus chicagoensis
Tremanotus sp. Hall 1868 snail
Tremanotus chicagoensis McChesney 1859 snail
 Murchisoniina - Murchisoniidae
"Turritoma laphami" = Murchisonia laphami
"Turritoma laphami" = Murchisonia laphami Hall 1860 snail
 Murchisoniina - Lophospiridae
Lophospiridae indet., "Schizolopha prosseri" = Arjamannia aulangonensis
Lophospiridae indet. Wenz 1938 snail
"Schizolopha prosseri" = Arjamannia aulangonensis Peel 1975 snail
 Murchisoniina - Luciellidae
"Pleurotomaria eloroidea" = Prosolarium crenulata
"Pleurotomaria eloroidea" = Prosolarium crenulata Sedgwick and M'Coy 1855 snail
 Murchisoniina - Eotomariidae
Eotomaria laphami
Eotomaria laphami Whitfield 1878 snail
 Euomphalina - Euomphalidae
Euomphalopterus alatus, Poleumita sp.
Euomphalopterus alatus Wahlenberg 1821 snail
Euomphalus alatus limatoideus
Poleumita sp. Clarke and Ruedemann 1903 snail
 Euomphalina - Oriostomatidae
"Oriostoma cf. huntingtonensis" = Oriostoma globosum, "Pleurotomaria hoyi" = Oriostoma hoyi
"Oriostoma cf. huntingtonensis" = Oriostoma globosum von Schlotheim 1820 snail
"Pleurotomaria hoyi" = Oriostoma hoyi Hall 1861 snail
Bivalvia
 Ostreida - Pterineidae
Pterinea sp.
Pterinea sp. Goldfuss 1832 oyster
 Megalodontida - Megalodontidae
"Megalomus canadensis" = Megalomoidea
"Megalomus canadensis" = Megalomoidea clam
Trilobita
  -
"Trilobita" indet.
"Trilobita" indet. Walch 1771 trilobite
 Corynexochida - Illaenidae
Bumastus sp., Bumastus insignis
Bumastus sp. Murchison 1839 trilobite
Bumastus insignis Hall 1865 trilobite
 Phacopida - Calymenidae
Calymene sp.
Calymene sp. Brongniart 1822 trilobite
 Phacopida - Encrinuridae
Encrinurus indianaensis
 Phacopida - Cheiruridae
Sphaerexochus romingeri
Sphaerexochus romingeri Hall 1868 trilobite
Anthozoa
 Cystiphyllida - Fletcheriidae
Fletcheria spp.
Fletcheria spp. Milne-Edwards and Haime 1851 horn coral
 Stauriida - Hapsiphyllidae
Neozaphrentis sp.
Neozaphrentis sp. Grove 1935 horn coral
 Stauriida - Arachnophyllidae
Arachnophyllum cf. striatum
 Favositida - Favositidae
Favosites sp.
Favosites sp. Lamarck 1816 tabulate coral
 Favositida - Coenitidae
Coenites cf. laqueata
Coenites cf. laqueata tabulate coral
 Auloporida - Syringoporidae
Syringopora sp.
Syringopora sp. Goldfuss 1826 tabulate coral
 Heliolitida - Halysitidae
Halysites labyrinthicus, Halysites catenularia
Halysites catenularia Linnaeus 1767 tabulate coral
microporus
Cyclospongia discus
  -
Cyclospongia discus
Cyclospongia discus Miller 1891
Stromatoporoidea
 Stromatoporoidea -
"Stromatoporoidea" indet.
"Stromatoporoidea" indet. stromatoporoid sponge