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 5115: authorized by John Alroy, entered by Mike Sommers on 30.08.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
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Dicoelosia sp. King 1850 | |
Dalmanellidae indet. Schuchert 1913 | |
Strophomenata | |
| |
Stropheodontidae indet. Caster 1939 | |
Orthotetidae indet. Waagen 1884 |