[Last Updated 10 Dec 2024]

Placid Shale Strata
(formerly member of Brad Fm.)


The Geology of Texas - Volume 1 - Stratigraphy

Brad Strata

"  The Brad Strata consists chiefly of shales and limestones.  The members now recognized are the Placid shale and Ranger limestone.  In the Brazos River valley the members originally recognized were the Seaman Ranch beds and the Ranger limestone (1228, p. 109). In Wise County the Adams Branch limestone is wanting, and in this county the shales and sandstones from the Devils Den limestone to the Ranger limestone have been named the Ventioner beds (1398b). The Ranger limestone may be followed northeast into Wise County, where it passes under the Cretaceous.  Type locality: The type locality is at Brad in Palo Pinto County;  thickness, 125 to 200 feet.  "


Geology:
Young County, Texas
 Young County, Texas
  
Fossil pics:
Group shot of all fossils found

Strata: Placid shale?
Period: Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  July 1, 2007.		 Chonetina flemingi  brachiopods

Strata: Placid shale?
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  July 1, 2007.		 Lophophyillidium proliferum corals

Strata: Placid shale?
Period: Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  July 1, 2007.
Pustula sp. or Echinaria semipunctata?

Strata: Placid shale?
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  July 1, 2007.		 crinoid columnals 

Strata: Placid shale?
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  27 Jan 2024.		 unknown

Strata: Placid Shale
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  27 Jan 2024. 
 
Strata: Placid Shale
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  27 Jan 2024. 		  
Strata: Placid Shale
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  27 Jan 2024. 		  
Strata: Placid Shale
Period:  Pennsylvanian (c. 300 mya)
Loc: Palo Pinto Co., TX.  27 Jan 2024.