FJa-1 (Crystal River) (Eocene of the United States)

Where: Jackson County, Florida (30.8° N, 85.2° W: paleocoordinates 31.1° N, 77.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Crystal River Limestone Formation, Priabonian (38.0 - 33.9 Ma)

• supposedly "Ludian"; stage assignment based on Baum et al. 1994; Section FJa-1

• group of beds-level stratigraphic resolution

Environment/lithology: marine; carbonate

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 3569: authorized by Mark Patzkowsky, entered by Karen Layou on 05.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Vertebrata indet. Lamarck 1801
shark tooth
Echinoidea
 Clypeasteroida - Oligopygidae
"Oligopygus haldemani" = Oligopygus haldermani
"Oligopygus haldemani" = Oligopygus haldermani Conrad 1850 sand dollar
 Clypeasteroida - Faujasiidae
"Cassidulus lyelli" = Cassidulus (Paralampas) lyelli
"Cassidulus lyelli" = Cassidulus (Paralampas) lyelli Conrad 1850 sand dollar
Cassidulus conradi lyelli
 Clypeasteroida - Neolaganidae
Weisbordella cubae sand dollar
 Clypeasteroida - Clypeasteridae
cf. Clypeaster oxybaphon Jackson 1922 sand dollar
originally entered as "Clypeaster cf. C. oxybaphon"
 Cassiduloida - Neolampadidae
Eurhodia patelliformis Bouvé 1851 sea urchin
Bivalvia
 Pectinida - Pectinoidae
"Amussium ocalanum" = Amusium scallop
originally entered as "Amusium ocalanum"
Chlamys clinchfieldensis scallop
Chlamys spillmani clinchfieldensis
Rhynchonellata
 Terebratulida - Cancellothyrididae
unclassified
  -
Arthropoda indet. Latreille 1829
crab carapace
Malacostraca
 Decapoda - Raninidae
Lophoranina georgiana Rathbun 1935 crab