Cuidad Victoria, USNM 13003 (Silurian of Mexico)

Where: Tamaulipas, Mexico (23.8° N, 99.3° W: paleocoordinates 26.9° S, 74.7° W)

• small collection-level geographic resolution

When: Upper Member (Canon de Caballeros Formation), Ludfordian (425.6 - 423.0 Ma)

• "Late Ludlow - Early Pridoli"

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone and sandstone

• 100 m shaley siltstone, very f.gr. ss and a few beds of f.- med.gr. ss. Considered a "shallow water deposit."

Collection methods: "We have restudied fossils collected by Jose Cabrillo-Bravo, R.B. Mixon, and D.D. Johnson...from USNM...13003..." and made new collections from those localities as well.

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: taxonomic analysis

PaleoDB collection 3566: authorized by John Alroy, entered by Mike Sommers on 04.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Proschizophoriidae
Baturria mexicana
 Orthida - Dalmanellidae
Isorthis sp., Isorthis sp.
Isorthis sp. Kozlowski 1929
(Ovalella); present but not counted
Isorthis sp. Kozlowski 1929
 Orthida - Rhipidomellidae
Dalejina sp.
Dalejina sp. Havlicek 1953
"Large"
 Rhynchonellida - Rhynchonellidae
Rhynchonellidae indet.
 Rhynchonellida - Uncinulidae
Uncinulidae indet.
Uncinulidae indet. Rzonsnitzkaja 1956
Uncinuloid
 Athyridida - Nucleospiridae
Nucleospira sp.
Nucleospira sp. Hall 1859
 Spiriferida - Delthyrididae
Delthyris sp.
Delthyris sp. Dalman 1828
"large"
Strophomenata
 Orthotetida - Orthotetidae
Orthotetidae indet.
Orthotetidae indet. Waagen 1884
"Orthotetacid"
 Strophomenida - Strophonellidae
Strophoprion cf. euglypha
Strophoprion cf. euglypha Dalman 1828
originally entered as "Strophoprion cf. euglypha"
 Strophomenida - Leptostrophiidae
Leptostrophia sp.
Leptostrophia sp. Hall and Clarke 1892
 Strophomenida - Rafinesquinidae
Leptaena rhomboidalis
Leptaena rhomboidalis Wahlenberg 1818