Golden Cat Company Clay Pit, near Olmsted (Paleocene of the United States)

Where: Pulaski County, Illinois (37.2° N, 89.1° W: paleocoordinates 40.4° N, 67.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Clayton Formation, Danian (66.0 - 61.6 Ma)

• "immediately above the K/T (Cretaceous/Tertiary) boundary"; section is "5 to 6 meters" thick

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; bioturbated, fine-grained, medium, glauconitic, green sandstone and gray claystone

• "near shore brackish to nearly marine environment... [specifically] a riverine, coastal environment"
• "bioturbated, dark green, glauconitic, micaceous, fine to medium sands alternating with layers of dark gray clay"

Size class: macrofossils

Collection methods: salvage,

• "Fossils were collected and processed from spoil piles"

Primary reference: J. A. Holman. 2002. Paleocene turtles and crocodilians directly above the Cretaceous/Tertiary (K/T) boundary in Pulaski County, Illinois. Michigan Academician 34(2):163-174 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70129: authorized by John Alroy, entered by John Alroy on 18.03.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Callianassidae
Callianassa cf. mortoni2 Rathbun 1935 decapod
 Decapoda - Nephropidae
Hoploparia tennesseensis2 Rathbun and Wade 1926 clawed lobster
 Decapoda - Annuntidiogenidae
Paguristes johnsoni2 Rathbun 1935 hermit crab
 Decapoda - Palinuridae
Linuparus canadensis2 Whiteaves 1884 spiny lobster
Polychaeta
 Spionida - Spionidae
Meandropolydora sp.2 Voigt 1965
Gymnolaemata
 Cheilostomata - Electridae
Conopeum damicornis Canu and Bassler 1920
Bivalvia
 Nuculanida - Nuculanidae
Jupiteria smirna2 pointed nut clam
 Ostreida - Ostreidae
Ostrea pulaskensis Harris 1892 oyster
Ostrea crenulimarginata2 Gabb 1860 oyster
 Arcida - Glycymerididae
Glycymeris idonea2 Conrad 1865 clam
 Carditida - Carditidae
"Venericardia wilcoxensis" = Venericardia (Baluchicardia) wilcoxensis2 Dall 1903 clam
Venericardia sp. Lamarck 1801 clam
"Venericardia smithii" = Venericardia (Venericor) smithii Aldrich 1894 clam
Venericardia mediaplata2 Gardner and Bowles 1939 clam
 Cardiida - Veneridae
 Pholadida - Teredinidae
Teredo mississippiensis2 Conrad 1854 clam
 Pholadida - Pholadidae
Gastropoda
 Opisthobranchia - Cylichnidae
 Heterostropha - Acteonidae
cf. Tornatellaea cretacea2 Wade 1926 snail
ssp. appressa
 Heterostropha - Mathildidae
 Neotaenioglossa - Calyptraeidae
Calyptraea sp.2 Lamarck 1799 slipper shell
 Neogastropoda - Costellariidae
? Orthosurcula sp.2 Casey 1904 ribbed mitre
 Neogastropoda - Volutidae
? Bullata cf. semen2 Lea 1833 volute
 Neogastropoda - Buccinidae
 Neogastropoda - Fasciolariidae
 Sorbeoconcha - Cymatiidae
 Sorbeoconcha - Naticidae
Natica reversa moon snail
 Epitonioidea - Epitoniidae
"? Epitonium cf. bexarense" = Striaticostatum bexarense2
"? Epitonium cf. bexarense" = Striaticostatum bexarense2 Stephenson 1941 wentletrap
 Vanikoroidea - Eulimidae
cf. Eulima clara2 Wade 1926 snail
 Cerithioidea - Turritellidae
"Turritella alabamiensis" = Mesalia alabamiensis, Turritella aldrichi2
"Turritella alabamiensis" = Mesalia alabamiensis De Gregorio 1890 turret shell
Turritella aldrichi2 turret shell
Osteichthyes
 Acipenseriformes - Acipenseridae
Propenser hewletti Applegate 1970 ray-finned fish
Reptilia
 Loricata -
Crocodylia indet. crocodilian
 Testudines - Trionychidae
Trionychidae indet.1 Gray 1825 softshell turtle
 Testudines -
"Chelonia sp." = Testudines
"Chelonia sp." = Testudines Batsch 1788 turtle
Actinopteri
 Tselfatiiformes - Plethodidae
"Bananogmius cf. crieleyi" = Pentanogmius crieleyi
"Bananogmius cf. crieleyi" = Pentanogmius crieleyi Applegate 1970
 Crossognathiformes - Pachyrhizodontidae
Chondrichthyes
 Hybodontiformes - Ptychodontidae
Ptychodus sp. Agassiz 1834 elasmobranch
 Lamniformes - Odontaspididae
"Lamna cuspidata" = Araloselachus cuspidatus
"Lamna cuspidata" = Araloselachus cuspidatus Agassiz 1843 sand tiger shark
 Chimaeriformes - Callorhynchidae
Ischyodus williamsae plownose chimaera
 Ichnofossils -
Teredolites sp.2 Leymerie 1842