Ideal Cement Co. quarry (Castle Hayne LS, N. Carolina) (Eocene of the United States)

Where: New Hanover County, North Carolina (34.4° N, 77.8° W: paleocoordinates 34.2° N, 68.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

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

• offshore, rather quiet, water depth no greater than 60 m
• three facies in ascending stratigraphic order: phosphate pebble biomicrudite, bryozoan biosparrudite, and 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 5386: authorized by Arnold Miller, entered by Karen Layou on 29.09.1999, edited by Mark Uhen, Uta Merkel and Marko Manojlovic

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Rhynchonellata
 Terebratulida - Terebratulidae
Plicatoria wilmingtonensis1 Lyell and Sowerby 1845
about 600
Bivalvia
 Arcida - Arcidae
Arca sp.5 Linnaeus 1758 ark
Barbatia sp.5 Gray 1842 clam
 Pectinida - Pectinoidae
Spondylus sp.5 Linnaeus 1758 scallop
Pecten sp.5 Müller 1776 scallop
 Carditida - Crassatellidae
"Crassatella alta" = Crassatellites altus5
"Crassatella alta" = Crassatellites altus5 Conrad 1855 clam
 Carditida - Carditidae
Venericardia sp.5 Lamarck 1801 clam
 Pholadomyida - Pholadomyidae
Pholadomya sp.5 Sowerby 1823 clam
Gastropoda
 Xenophoroidea - Xenophoridae
Xenophora sp.5 Fischer von Waldheim 1807 carrier shell
Gnathostomata
  -
Chondrichthyes sp.5 Huxley 1880 cartilaginous fish
Mammalia
 Sirenia - Sirenia
Sirenia indet.2 sirenian
 Cetacea - Basilosauridae
Basilosauridae indet.4 Cope 1867 whale
Echinoidea
 Cidaroida - Cidaridae
Cidaris pratti Clark and Twitchell 1915 pencil urchin
 Arbacioida - Arbaciidae
Coelopleurus carolinensis Cooke 1941 sea urchin
Coelopleurus infulatus Morton 1833 sea urchin
 Spatangoida - Prenasteridae
Unifascia carolinensis Clark and Twitchell 1915 heart urchin
 Spatangoida - Schizasteridae
Linthia hanoverensis Kellum 1926 heart urchin
 Spatangoida - Spatangidae
Maretia subrostrata heart urchin
 Spatangoida - Brissidae
Eupatagus wilsoni Kier 1980 heart urchin
Eupatagus lawsonae Kier 1980 heart urchin
Eupatagus carolinensis Clark and Twitchell 1915 heart urchin
 Echinolampadoida - Echinolampadidae
Echinolampas appendiculata Emmons 1858 sea urchin
 Cassiduloida - Neolampadidae
Eurhodia ideali sea urchin
Eurhodia rugosa ideali, new subspecies
 Clypeasteroida - Fibulariidae
Echinocyamus parvus Emmonds 1858 sand dollar
 Clypeasteroida - Protoscutellidae
Periarchus lyelli Conrad 1834 sand dollar
Demospongea
 Clavulina - Clionaidae
"Cliona" sp.3 demosponge
Hexactinellida
 Innaecoeliida - Craticulariidae
Laocoetis cf. crassipes3 Pomel 1872 glass sponge
 Hexactinosa - Aphrocallistidae
Druidia wilsoni3 Finks et al. 2011 glass sponge
Calcarea
 Lithonida - Minchinellidae
Bactronella womblei3 Finks et al. 2011 calcareous sponge