ammonites
TMM 43003, Blanco River (Cretaceous of the United States)

Where: Blanco County, Texas (30.1° N, 98.5° W: paleocoordinates 27.8° N, 59.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lower Member (Glen Rose Formation), Albian (112.0 - 99.6 Ma)

• at the base of the Salenia taxana Zone

• bed-level stratigraphic resolution

Environment/lithology: marine; lime mudstone and mudstone

• Tracks were made on algal-laminated micrite deposited in a northeast-southwest trending intertidal zone on the southeaster flank of the Llano Uplift
• micrite/mudstone; "a distinctive wave rippled algal laminate"

Size class: macrofossils

Preservation: mold/impression, trace

Reposited in the TMM

Collection methods: surface (in situ),

• algal lamination

Primary reference: J. G. Pittman. 1989. Stratigraphy, lithology, depositional environment, and track type of dinosaur track-bearing beds of the Gulf Coastal Plain. In D. D. Gillette and M. G. Lockley (eds.), Dinosaur Tracks and Traces. Cambridge University Press, Cambridge 135-153 [M. Carrano/K. Maguire/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 52327: authorized by Matt Carrano, entered by Kaitlin Maguire on 03.08.2005