Where: Tamaulipas, Mexico (23.8° N, 99.3° W: paleocoordinates 25.6° S, 76.0° W)
• small collection-level geographic resolution
When: Santa Ana Limestone Member (Canon de Caballeros Formation), Homerian to Homerian (430.5 - 425.6 Ma)
• The authors indicate that the Santa Ana Member may be diachronous, as to the N some taxa there indicate an age of late Llandovery. They feel that it isn't diachronous, just the age determination needs more work.
• member-level stratigraphic resolution
Environment/lithology: sand shoal; lithified, shelly/skeletal grainstone
Primary reference: A. J. Boucot, R. B. Blodgett, and J. H. Stewart. 1997. European province Late Silurian brachiopods from the Ciudad Victoria area, Tamaulipas, northeastern Mexico. Geological Society of America Special Paper 321:273-293 [J. Alroy/M. Sommers/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 5119: authorized by John Alroy, entered by Mike Sommers on 30.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Tentaculita | |
Cornulites sp. Schlotheim 1820 | |
Strophomenata | |
Stropheodontidae indet. Caster 1939 | |
Leptaena rhomboidalis Wahlenberg 1818 | |
Rhynchonellata | |
Cyrtia sp. Dalman 1828
Eospirifer sp. Schuchert 1913 | |
Atrypa reticularis Linnaeus 1758 | |
"Rhynchonella aff. stricklandi" = Trigonirhynchia stricklandii
"Rhynchonella aff. stricklandi" = Trigonirhynchia stricklandii Sowerby and Murchison 1839 | |
Resserella sp. Bancroft 1928
? Isorthis sp. Kozlowski 1929 | |
Bivalvia | |
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Trilobita | |
| |
Anthozoa | |
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Favositidae indet. Dana 1846 tabulate coral |