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)
• Assigned to Upper Palmarito Limestones; samples collected over lateral distance of 1 m through stratigraphic interval of ~1 m. Fusulinids and ammonoids suggest that locality 4 (and underlying localities 1 and 2) are "late Leonardian" (Kungurian) in age. Palmarito Fm contains Perrinites hilli and Parafusulina of Kungurian age.
• bed-level stratigraphic resolution
Environment/lithology: lagoonal or restricted shallow subtidal; shelly/skeletal, gray, silty wackestone and gray, calcareous siltstone
Size class: macrofossils
Preservation: replaced with silica
Collection methods: bulk, chemical,
• Samples collected over lateral distance of 1 m through stratigraphic interval of ~1 m. Prepared by hydrochloric acid etching.
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 41507: authorized by David Bottjer, entered by Matthew Clapham on 15.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Hexactinellida | |
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Demospongiae | |
"Girtyocoelia dunbari" = Girtyocoelia beedei, "Apocoelia sphaera n. gen. n. sp." = Girtyocoelia sphaera
"Girtyocoelia dunbari" = Girtyocoelia beedei Girty 1909 demosponge
"Apocoelia sphaera n. gen. n. sp." = Girtyocoelia sphaera Rigby 1984 demosponge | |
Cystothalamia nana n. sp., Guadalupia minuta
Cystothalamia nana n. sp. Rigby 1984 demosponge
Guadalupia minuta Rigby 1984 demosponge | |
? Vesicocaulis sp. Ott 1967 demosponge | |
? Amblysiphonella sp. Steinmann 1882 demosponge | |
Colospongia monilis Rigby 1984 demosponge | |
Defordia digitata n. sp., Defordia verrucula n. sp.
Defordia digitata n. sp. Rigby 1984 demosponge
Defordia verrucula n. sp. Rigby 1984 demosponge | |
Anthozoa | |
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Strophomenata | |
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Meekella skenoides Girty 1908 | |
Rhynchonellata | |
Spiriferellina cf. hilli Girty 1908 | |
Hustedia hyporhachis Hoover 1981 | |
Composita cf. pilula Cooper and Grant 1976
Cleiothyridina cf. nana Cooper and Grant 1976 | |
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? Oligothyrina sp. Cooper 1956 | |
Stenolaemata | |
Fistuliporidae indet. Ulrich 1882 | |
Gastropoda | |
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"Straparollus (Euomphalus) sp." = Euomphalus
"Straparollus (Euomphalus) sp." = Euomphalus Sowerby 1814 snail | |
Anomphalus "n. sp." Meek and Worthen 1866 snail | |
? Cibecuia sp. Winters 1956 snail | |
Orthonema sp. Meek and Worthen 1862 snail | |
Dichostasia complex Yochelson 1956 snail | |
"? Pleurotomariacea indet." = Pleurotomarioidea
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"Strobeus" sp. de Koninck 1881 snail | |
Worthenia sp. de Koninck 1883 snail
Discotomaria cf. basisulcata Batten 1956 snail
? Lamellospira sp. Batten 1958 snail | |
Apachella sp. Winters 1956 snail
Apachella aff. franciscana Chronic 1952 snail | |
Crinoidea | |
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