Locality 14, Francis Road, Ledyard and Wanakah Members, Ludlowville Formation, G (Devonian of the United States)

Where: Genesee County, New York (42.9° N, 78.2° W: paleocoordinates 36.5° S, 25.7° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Wanakah Member (Ludlowville Formation), Givetian (387.7 - 382.7 Ma)

• samples not specified as from Ledyard or Wanakah

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; bioturbated, pyritic, gray, calcareous mudstone

• soft, medium gray, slightly calcareous, siliciclastic mudstones, geographically widespread beds of carbonate or pyritic concretions and fossil layers occur at many levels

Preservation: trace, concretion, original calcite, replaced with pyrite

Collection methods: bulk,

Primary reference: C. E. Brett, V. B. Dick, and G. C. Baird. 1991. Comparative Taphonomy and Paleoecology of Middle Devonian Dark Gray and Black Shale Facies from Western New York. In E. Landing, C. E. Brett (eds.), Dynamic Stratigraphy and Depositional Environments of the Hamilton Group (Middle Devonian) in New York State, Part II 469:5-36 [A. Miller/K. Layou/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 9359: authorized by Arnold Miller, entered by Karen Layou on 24.10.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• Relative abundance symbols listed in comments field are as follows: a = abundant, 10s to 100s of specimens; c = commonly found, 10s of specimens; x = present, fewer than 10 specimens; r = rare, usually only one specimen; ? = identification questionable
Bivalvia
 Nuculanida - Cucullellidae
 Nuculanida - Malletiidae
Palaeoneilo sp. Hall and Whitfield 1869 clam
x [entered as Paleoneilo sp.]
 Solenida - Orthonotidae
Orthonota sp. Conrad 1841 clam
c
 Cardiidia - Sanguinolitidae
 Cardiidia - Grammysiidae
Grammysia arcuata Conrad 1841 clam
x
 Cardiida - Kalenteridae
 Myalinida - Lunulacardiidae
 Ostreida - Pterineidae
"Leiopteria sp." = Leptodesma (Leiopteria)
"Leiopteria sp." = Leptodesma (Leiopteria) Hall 1883 oyster
x
 Cyrtodontida - Praecardiidae
Buchiola sp. Barrande 1881 clam
x
Lingulata
 Lingulida - Discinidae
Orbiculoidea sp. d'Orbigny 1847
c
Rhynchonellata
 Rhynchonellida - Leiorhynchidae
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893
x
 Spiriferida - Mucrospiriferidae
 Spiriferida - Ambocoeliidae
Ambocoelia umbonata Conrad 1842
a
  - Tropidoleptidae
 Spiriferinida - Cyrtinidae
 Orthida - Rhipidomellidae
Strophomenata
 Strophomenida - Anopliidae
"Chonetes lepidus" = Klocinetes lepidus
"Chonetes lepidus" = Klocinetes lepidus Hall 1857
x
 Strophomenida - Chonetidae
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
x
Stenolaemata
 Cryptostomata - Palescharidae