Unit 2 Kinney Brick Company Quarry (Carboniferous of the United States)

Where: Bernalillo County County, New Mexico (34.9° N, 106.3° W: paleocoordinates 1.2° S, 37.7° W)

When: Wild Cow Formation (Madera Group), Kasimovian (307.0 - 303.7 Ma)

• other authors report Virgilian age for the strata; this author argues for middle to late Missourian age referring to brachiopods and conodonts which would then put the strata into the lower protion of the Pine Shadow or upper part of the Sol se Mete Members

Environment/lithology: lagoonal or restricted shallow subtidal; mudstone

• in general: strata define a regressive facies sequence which reflects the pro-gradation of a clastic delta; depositional history of this delta was interrupted on at least two occasions by marine transgressions

•unit 2: presence of pyrite on bedding surfaces and on valves of lingulid and articulate brachiopods indicates deposition under reducing conditions; marine environment with restricted circulation, though maintaining near-normal salinity, with a reduced oxygen content is indicated by the assemblage composition and taphonomy; facies is interpreted as deposited in the distal portion of a developing bay or lagoon

• the upper 7 cm of the micrite (referring to unit 1) has uniform, fine laminations, and the transition from laminar to finely laminated bedding is sharp but gradational; unit is petroliferous;

Size classes: macrofossils, mesofossils

• Lingula-Solemya-Myalina community; gastric residues; coprolites

Primary reference: P. Huber. 1992. Faunal distribution, seasonal deposition, and fish taphonomy at the Upper Pennsylvanian (Missourian) Kinney Brick Company Quarry, central New Mexico. New Mexico Bureau of Mines & Mineral Resources, Bulletin 138:37-48 [B. Seuss/B. Seuss/B. Seuss]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 217021: authorized by Barbara Seuss, entered by Barbara Seuss on 18.01.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
 Radiatopses - Medullosaceae
Neuropteris sp. Brongniart 1828
pinnules
Polypodiopsida
 Equisetales - Equisetidae
Calamitaceae indet.
calamitalean trunks
Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
columnals
Chondrichthyes
 Petalodontiformes - Pristodontidae
Peripristis sp. St. John 1870 chimaera
 Acanthodiformes - Acanthodidae
Acanthodes sp. Agassiz 1833 spiny fish
Osteichthyes
 Elonichthyiformes - Elonichthyidae
"Elonichthys" spp. Giebel 1848 ray-finned fish
 Palaeonisciformes - Platysomidae
Platysomus sp. Agassiz 1833
 Eurynotiformes - Amphicentridae
"Amphicentrum sp." = Chirodus
"Amphicentrum sp." = Chirodus M'Coy 1848
 Dipnoi -
Proceratodus sp. Cope 1884 lungfish
Polychaeta
  -
Polychaeta indet. Grube 1850
spirorbid worms
Lingulata
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
Strophomenata
 Productida - Productellidae
Antiquatonia sp. Miloradovich 1945
 Productida - Linoproductidae
 Strophomenida - Rugosochonetidae
Chonetinella sp. Ramsbottom 1952
Rhynchonellata
 Spiriferida - Trigonotretidae
Neospirifer sp. Fredericks 1919
 Athyridida - Athyrididae
Composita sp. Brown 1849
Bivalvia
 Myalinida - Myalinidae
Myalina sp. de Koninck 1842 clam
 Pectinida - Pterinopectinidae
Dunbarella sp. Newell 1938 scallop
 Pectinida - Aviculopectinidae
Aviculopecten sp. M'Coy 1851 scallop
 Solemyida - Solemyidae
Solemya sp. Children 1823 Awning Clam
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
high-spired
Cephalopoda
  -
Cephalopoda indet. Cuvier 1797
Deuteropoda
  -
Ostracoda indet. Latreille 1802 ostracod
smooth carapax