Where: Merida, Venezuela (8.0° N, 71.3° W: paleocoordinates 5.5° S, 34.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Palmarito Formation, Kungurian (279.3 - 272.3 Ma)
• Brachiopod similarities suggests equivalence to Road Canyon Fm (Kungurian-Roadian), Palmarito Fm contains Perrinites hilli and Parafusulina of Kungurian age. 0.5 cubic metres sampled.
• bed-level stratigraphic resolution
Environment/lithology: open shallow subtidal; silty wackestone
Size class: macrofossils
Preservation: mold/impression, replaced with silica
Collection methods: surface (in situ), mechanical,
• Rock was totally leached of all soluble carbonate to a depth of 1 m (due to weathering). Fossils were recovered from surface collections and by cutting through dried silt with dental tools and air abrasion.
Primary reference: P.R. Hoover. 1981. Paleontology, Taphonomy, and Paleoecology of the Palmarito Formation (Permian of Venezuela). Bulletins of American Paleontology 80(313):1-138 [D. Bottjer/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 41514: authorized by David Bottjer, entered by Matthew Clapham on 15.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
"Lophophyllidium aff. spinosum" = Lophophyllidium (Lophophyllidium) absitum
"Lophophyllidium aff. spinosum" = Lophophyllidium (Lophophyllidium) absitum Jeffords 1947 horn coral | |
unclassified | |
Porifera indet. Grant 1836 | |
Crinoidea | |
| |
Echinoidea | |
| |
Gastropoda | |
Meekospira sp. Ulrich and Scofield 1897 snail | |
Kinishbia sp. Winters 1956 snail | |
| |
"Straparollus (Euomphalus) aff. kaibabensis" = Euomphalus kaibabensis
"Straparollus (Euomphalus) aff. kaibabensis" = Euomphalus kaibabensis Chronic 1952 snail | |
Bivalvia | |
Schizodus canalis Branson 1930 clam | |
Strophomenata | |
? Paucispinifera cf. sulcata Cooper and Grant 1975 | |
? Holotricharina "sp. A" Cooper and Grant 1975
Holotricharina hirsuta Cooper and Grant 1975 | |
Echinauris cf. liumbona Cooper and Grant 1975
"Kutorginella cf. umbonata" = Retaria umbonata Muir-Wood and Cooper 1960
Rugatia intermedia Hoover 1981 | |
Spinifrons grandicosta Hoover 1981 | |
"Stauromata esoterica n. gen." = Dyoros esoterica, Chonetinetes cf. varians
"Stauromata esoterica n. gen." = Dyoros esoterica Hoover 1981 | |
Meekella skenoides Girty 1908 | |
Derbyia cf. complicata Cooper and Grant 1974
Derbyia auriplexa Hoover 1981 | |
Rhynchonellata | |
Neospirifer venezuelensis Gerth 1931 | |
Neophricadothyris cf. crassibecca Cooper and Grant 1976 | |
Hustedia sp. Hall and Clarke 1893 | |
Composita cf. pilula Cooper and Grant 1976 | |
Pontisia stehlii Cooper and Grant 1969 | |
Bryozoa | |
| |
Stenolaemata | |
"Fenestrida indet." = Fenestelloidea
|