ACH-19 (N Creek Clay) (Eocene of the United States)

Where: Choctaw County, Alabama (31.8° N, 88.3° W: paleocoordinates 32.2° N, 80.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: North Twistwood Creek Clay Member (Yazoo Clay Formation), Priabonian (38.0 - 33.9 Ma)

• supposedly "Bartonian"; stage assignment based on Baum et al. 1994; Station ACh-19

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified, gray, sandy claystone

• lithology described as a sandy clay

Size class: mesofossils

Primary reference: L. D. Toulmin. 1977. Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region. Geological Survey of Alabama, Monograph 13(1):1-602 [M. Patzkowsky/K. Layou/P. Mannion]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 3539: authorized by Mark Patzkowsky, entered by Karen Layou on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Dendrophylliidae
Endopachys maclurii
Endopachys maclurii Lea 1833 stony coral
unclassified
  -
Vertebrata indet.
Vertebrata indet. Lamarck 1801
ray dental plate and ray tail spine
Gastropoda
 Epitonioidea - Epitoniidae
Cirsotrema danvillense
Cirsotrema danvillense Harris and Palmer 1947 wentletrap
Bivalvia
 Carditida - Carditidae
"Venericardia diversidentata" = Venericardia (Rotundicardia) diversidentata
"Venericardia diversidentata" = Venericardia (Rotundicardia) diversidentata Meyer 1885 clam
 Lucinida - Lucinidae
Lucina sp., Saxolucina gaufia
Lucina sp. Bruguière 1797 clam
Saxolucina gaufia Harris 1946 clam
 Cardiida - Tellinidae
Tellina sp.
Tellina sp. Linnaeus 1758 tellin clam
 Cardiida - Veneridae
Pitar securiformis, Callista sp., Callista annexa
Pitar securiformis Conrad 1865 venus clam
Callista sp. Poli 1791 venus clam
Callista annexa Conrad 1865 venus clam
 Cardiida - Mactridae
Spisula sp.
Spisula sp. Gray 1837 clam
 Pholadida - Corbulidae
Caryocorbula willistoni, Caestocorbula wailesiana, "Caryocorbula densata" = Corbula densata
Caryocorbula willistoni Meyer 1885 clam
"Caryocorbula densata" = Corbula densata Conrad 1854 clam
 Hiatellida - Hiatellidae
cf. Panopea oblongata
cf. Panopea oblongata Conrad 1848 clam
originally entered as "Panopea cf. P. oblongata"
 Ostreida - Pteriidae
Pteria vanwinkleae
Pteria vanwinkleae pearl oyster
Pteria limula vanwinkleae
 Ostreida - Pinnidae
Atrina jacksoniana
Atrina jacksoniana Dall 1898 oyster
 Ostreida - Gryphaeidae
Gryphaeostrea plicatella
Gryphaeostrea plicatella oyster
Gryphaeostrea vomer plicatella
 Ostreida - Ostreidae
Ostrea sp., Crassostrea sp.
Ostrea sp. Linnaeus 1758 oyster
originally entered as "Ostrea spp."
Crassostrea sp. Sacco 1897 oyster
 Pectinida - Pectinoidae
Pecten sp., Eburneopecten scintillatus, Chlamys danvillensis, Chlamys sp., Chlamys deshayesii
Pecten sp. Müller 1776 scallop
Eburneopecten scintillatus Conrad 1854 scallop
Chlamys sp. Röding 1798 scallop
originally entered as "Chlamys spp."
Chlamys deshayesii Lea 1833 scallop
 Pectinida - Anomiidae
Anomia sp.
Anomia sp. Linnaeus 1758 jingle
 Nuculida - Nuculidae
"Nucula spheniopsis" = Nucula (Nucula) sphenopsis
"Nucula spheniopsis" = Nucula (Nucula) sphenopsis Conrad 1865 nut clam
 Nuculanida - Nuculanidae
Calorhadia mater
Calorhadia mater Meyer 1885 pointed nut clam
Thecostraca
 Balanomorpha - Balanidae
Balanus sp.
Balanus sp. Da Costa 1778 barnacle
 Pollicipomorpha - Zeugmatolepadidae
Aporolepas howei
Aporolepas howei Cheetham 1963 barnacle