Estabrook Park, first hydraulic cement quarry of Milwaukee (Devonian of the United States)

Where: Milwaukee County, Wisconsin (43.1° N, 87.9° W)

• Paleocoordinates: 28.6° S, 53.5° W (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

When: Milwaukee Formation, Givetian (387.7 - 382.7 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: C. Eastman. 1897. On the relations of certain plates in the Dinichthyids, with descriptions of new species. Bulletin of the Museum of Comparative zoology at Harvard College 31:19-44more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 238125: authorized by Joseph Flannery-Sutherland, entered by Joseph Flannery-Sutherland on 10.01.2025

Creative Commons license: CC0 (CC0)

Taxonomic list

Placodermi
 Arthrodira - Dinichthyidae
Eastmanosteus pustulosus Eastman 1897 armour-plated fish
Holotype MCZ 1381, collected 1881, so definitely the first cement quarry