Martin Marietta Quarry [Castle Hayne Limestone] (Eocene of the United States)

Also known as Superior Stone Quarry

Where: New Hanover County, North Carolina (34.4° N, 77.9° W: paleocoordinates 34.2° N, 68.7° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Castle Hayne Formation, Bartonian (41.3 - 38.0 Ma)

Environment/lithology: deep subtidal; pebbly, phosphatic, shelly/skeletal wackestone and grainstone

• three facies in ascending stratigraphic order: phosphate pebble biomicrudite, bryozoan biosparrudite, bryozoan biomicrudite

Size class: macrofossils

Primary reference: P. M. Kier. 1980. The Echinoids of the Middle Eocene Warley Hill Formation, Santee Limestone, and Castle Hayne Limestone of North and South Carolina. Smithsonian Contributions to Paleobiology 39:1-102 [A. Miller/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 5459: authorized by Arnold Miller, entered by Karen Layou on 04.10.1999, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Sirenia - Protosirenidae
Protosiren sp.1 Abel 1904 sirenian
Echinoidea
 Spatangoida - Prenasteridae
Carolinaster varnami n. gen. n. sp.2
Carolinaster varnami n. gen. n. sp.2 Osborn et al. 2016 heart urchin
 Spatangoida - Schizasteridae
Agassizia wilmingtonensis heart urchin
Agassizia wilmingtonensis wilmingtonensis
Linthia wilmingtonensis Clark and Twitchell 1915 heart urchin
Linthia harmatuki Kier 1980 heart urchin
Linthia hanoverensis Kellum 1926 heart urchin
 Spatangoida - Spatangidae
Maretia subrostrata heart urchin
 Echinolampadoida - Echinolampadidae
Echinolampas appendiculata Emmons 1858 sea urchin
 Cassiduloida - Neolampadidae
Eurhodia depressa sea urchin
Eurhodia rugosa depressa, new subspecies
Eurhodia ideali sea urchin
Eurhodia rugosa ideali, new subspecies
 Cassiduloida - Cassidulidae
Rhyncholampas carolinensis Clark and Twitchell 1915 sea urchin
 Clypeasteroida - Protoscutellidae
Periarchus lyelli Conrad 1834 sand dollar
Protoscutella plana Conrad 1865 sand dollar