Where: Sonora, Mexico (29.4° N, 109.9° W: paleocoordinates 4.3° S, 44.6° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: La Joya Formation, Westphalian D (311.4 - 306.9 Ma)
• 100 m thick section, Late Atokan
•JA: entered as Atokan, but "early Late Moscovian" = Westphalian D is a more precise age call
• group of beds-level stratigraphic resolution
Environment/lithology: perireef or subreef; lithified grainstone and lithified packstone
Size classes: macrofossils, mesofossils, microfossils
Collection methods: peel or thin section,
Primary reference: B. E. Buitron-Sanchez, C. Gomez-Espinosa, E. Almazan-Vazquez and D. Vachard. 2007. A Late Atokan regional encrinite (early Late Moscovian, Middle Pennsylvanian) in the Sierra Agua Verde, Sonora state, NW Mexico. in J. J. Alvaro, M. Aretz, F. Boulvain, A. Munnecke, D. Vachard, E. Vennin, eds., Palaeozoic reefs and bioaccumulations: climatic and evolutionary controls. Geological Society Special Publication 275:201-209 [W. Kiessling/U. Merkel]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 76170: authorized by Wolfgang Kiessling, entered by Uta Merkel on 15.11.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Rhodophyceae | |
Ulvophyceae | |
Eugonophyllum sp. Konishi and Wray 1961 | |
Chlorophyceae | |
? Kamaena sp. Antropov 1967 | |
Foraminifera | |
Globivalvulina bulloides Brady 1876 | |
Endothyra ex gr. bowmani Phillips 1846 | |
Fusulinella thompsoni Wilde and Skinner 1954 | |
Pseudostaffella sp. Thompson 1942 | |
Demospongiae | |
Chaetetes sp. Fischer von Waldheim 1829 demosponge | |
Anthozoa | |
Michelinia sp. de Koninck 1841 tabulate coral | |
Lophophyllidium sp. Grabau 1928 horn coral | |
Rhynchonellata | |
Spirifer sp. Sowerby 1818 | |
Gastropoda | |
Euomphalus sp. Sowerby 1814 snail | |
cf. Donaldina robusta Stevens 1858 snail | |
Crinoidea | |
Heterostelechus keithi, Lamprosterigma erathense, Lamprosterigma mirificum, Pentagonopterix insculptus, Mooreanteris waylandensis, Pentaridica simplicis, Cyclocrista martini, Cycloscapus laevis, Cyclocaudex insaturatus, Preptopremnum laeve, Preptopremnum rugosum
Lamprosterigma erathense Sea lily
Lamprosterigma mirificum Sea lily
Pentagonopterix insculptus Sea lily
Mooreanteris waylandensis Sea lily
Pentaridica simplicis Sea lily
Cyclocrista martini Sea lily
Cycloscapus laevis Sea lily
Cyclocaudex insaturatus Sea lily
Preptopremnum laeve Sea lily
Preptopremnum rugosum Sea lily |