Mud Springs, Mountains (Ordovician of the United States)

Where: El Paso County, New Mexico (33.2° N, 107.3° W: paleocoordinates 14.0° S, 86.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Scenic Drive Member (Padre Formation), Cassinian (478.6 - 468.1 Ma)

• Given as B2b member of Scenic Drive Formation in Flower 1968; early Arenig; correlates to G zone of Hintze (1952)

• formation-level stratigraphic resolution

Environment/lithology: lithified limestone and lithified, black, cherty/siliceous limestone

• All are from a single 3' layer of black limestone containing fossils and nodules preserved in russet-weathering chert, roughly in the middle of the 226' of limestone comprising the upper member of the Scenic Drive formation, B2b of Cloud and Barnes.

Size class: macrofossils

Preservation: replaced with silica

Primary reference: R. H. Flower. 1968. Part I - Some El Paso guide fossils. New Mexico Institute of Mining and Technology Memoir 22(1):1-21 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 56655: authorized by Pete Wagner, entered by Pete Wagner on 21.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Euomphalina - Macluritidae
"Bridgeina carinifera" = Macluritella carinifera, "Bridgeina rotunda" = Macluritella rotunda
"Bridgeina carinifera" = Macluritella carinifera Flower 1968 snail
"Bridgeina rotunda" = Macluritella rotunda Flower 1968 snail
 Murchisoniina - Subulitidae
"Hormotoma zelleri" = Eroicaspira zelleri
"Hormotoma zelleri" = Eroicaspira zelleri Flower 1968 snail