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 (309.8 - 307.5 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 | |
Chlorophyceae | |
? Kamaena sp. Antropov 1967 | |
Ulvophyceae | |
Eugonophyllum sp. Konishi and Wray 1961 | |
Foraminifera | |
Fusulinella thompsoni Wilde and Skinner 1954 | |
Pseudostaffella sp. Thompson 1942 | |
Endothyra ex gr. bowmani Phillips 1846 | |
Globivalvulina bulloides Brady 1876 | |
Demospongiae | |
Chaetetes sp. Fischer von Waldheim 1829 demosponge | |
Anthozoa | |
Michelinia sp. de Koninck 1841 tabulate coral | |
Lophophyllidium sp. Grabau 1928 horn coral | |
Crinoidea | |
Mooreanteris waylandensis, Cyclocrista martini, Preptopremnum laeve, Preptopremnum rugosum, Pentaridica simplicis, Cycloscapus laevis, Lamprosterigma erathense, Lamprosterigma mirificum, Heterostelechus keithi, Cyclocaudex insaturatus, Pentagonopterix insculptus
Mooreanteris waylandensis Sea lily
Cyclocrista martini Sea lily
Preptopremnum laeve Sea lily
Preptopremnum rugosum Sea lily
Pentaridica simplicis Sea lily
Cycloscapus laevis Sea lily
Lamprosterigma erathense Sea lily
Lamprosterigma mirificum Sea lily
Cyclocaudex insaturatus Sea lily
Pentagonopterix insculptus Sea lily | |
Gastropoda | |
Euomphalus sp. Sowerby 1814 snail | |
cf. Donaldina robusta Stevens 1858 snail | |
Rhynchonellata | |
Spirifer sp. Sowerby 1818 |