Pint's Quarry (Devonian of the United States)

Where: Blackhawk County, Iowa (42.5° N, 92.2° W: paleocoordinates 33.0° S, 37.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Rapid Member (Cedar Valley Formation), Givetian (387.7 - 382.7 Ma)

• lens ca. 2.1 m above top of Solon Mbr. and 11.7 m below base of Coralbille Mbr. "provisionally correllated with the lowermost asymmetricus Zone."

• bed-level stratigraphic resolution

Environment/lithology: lenticular, glauconitic, phosphatic, pyritic, quartzose, argillaceous, silty dolomite

• "an argillaceous silty dolomite with scattered patches of calcite spar, glauconite, phosphate clasts, fine, angular quartz sand, and chert spherulites. Pyrite commonly relaces the phosphate clasts. Crossbeds are also present in the lend, but bioturbation has apparently altered microdepositional textures."

Size class: macrofossils

Preservation: adpression

Collected by E. Hix, P. Menzel in 1965–1970

Collection methods: salvage, surface (float),

Primary reference: R. H. Denison. 1985. A new ptyctodont placoderm, Ptyctodopsis, from the Middle Devonian of Iowa. Journal of Paleontology 59(3):511-522 [M. Carrano/M. Carrano]more details

PaleoDB collection 163063: authorized by Matthew Carrano, entered by Matthew Carrano on 10.10.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Placodermi
 Ptyctodontida - Ptyctodontidae
Ptyctodus sp., Ptyctodopsis menzeli n. gen. n. sp., Rhynchodus sp.
Ptyctodus sp. Pander 1858 armour-plated fish
Ptyctodopsis menzeli n. gen. n. sp. Denison 1985 armour-plated fish
SUI 33860
Rhynchodus sp. Newberry 1873 armour-plated fish
Osteichthyes
 Onychodontiformes - Onychodontidae
Onychodus sp.
Onychodus sp. Newberry 1857 lobe-finned fish
Conodonta
 Ozarkodinida - Polygnathidae
Polygnathus xylus
Polygnathus xylus Stauffer 1940 conodont
P. xylus xylus
 Prioniodontida - Icriodontidae
Icriodus subterminus
Icriodus subterminus Youngquist 1947 conodont