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Williamson County, Texas Fossils

Vertebrates

Cretoxyrhina mantelli

Eagle Ford/Atco (None)
Williamson County | 68

Cretoxyrhina mantelli

Shark Vertebrae

Eagle Ford/Atco (None)
Williamson County | W2-603

Shark Vertebrae

Crocodile Osteoderm

Eagle Ford (Kef)
Williamson County | 338

Crocodile Osteoderm

Coral

Placosmilia?

Eagle Ford (Kef)
Williamson County | 78

Placosmilia?

Echinoderms

Salenia volana

Buda (Kbu)
Williamson County | W2-580

Salenia volana

Echinoid

Buda (Kbu)
Williamson County | W2-738

Echinoid

Echinoid

Buda (Kbu)
Williamson County | W2-642

Echinoid

Enchinoid

Austin Chalk (Kau)
Williamson County | W1-724

Enchinoid

Phymosoma Sp.

Buda (Kbu)
Williamson County | W2-737

Phymosoma Sp.

Mollusks

Tylostoma harrisi

Buda (Kbu)
Williamson County | W2-694

Tylostoma harrisi

Anchura Texana

Austin Chalk (Kau)
Williamson County | W1-697

Anchura Texana

Gastropod

Austin Chalk (Kau)
Williamson County | W1-672

Gastropod

Gastropod

Austin Chalk (Kau)
Williamson County | W1-681

Gastropod

Gastropod

Buda (Kbu)
Williamson County | W2-695

Gastropod

Gastropod

Austin Chalk (Kau)
Williamson County | W1-716

Gastropod - None

Gastropod

Austin Chalk (Kau)
Williamson County | W1-717

Gastropod - None

Gastropod

Austin Chalk (Kau)
Williamson County | 575

Gastropod

Silicified Turritella

Austin Chalk (Kau)
Williamson County | W1-641

Silicified Turritella

Turritella Sp.

Buda (Kbu)
Williamson County | W2-581

Turritella Sp.

Turritella bybeei

Buda (Kbu)
Williamson County | W2-17

Turritella bybeei

Cerithium bosquense

Comanche Peak (Kcp)
Williamson County | 9

Cerithium bosquense

Baculites sp.

Austin Chalk (Kau)
Williamson County | W1-488

Baculites sp.

Baculites sp.

Austin Chalk (Kau)
Williamson County | W1-492

Baculites sp.

Faraudiella roemeri

Buda (Kbu)
Williamson County | 61

Faraudiella roemeri

Inoceramus

Austin Chalk (Kau)
Williamson County | W1-490

Inoceramus

Inoceramus Vinson?

Austin Chalk (Kau)
Williamson County | 264

Inoceramus Vinson?

Inoceramus labiatus

Eagle Ford (Kef)
Williamson County | 90

Inoceramus labiatus

Platyceramus

Austin Chalk (Kau)
Williamson County | 116

Platyceramus

Unknown bivalve

Eagle Ford (Kef)
Williamson County | 79

Unknown bivalve

Spondylus guadalupae

Austin Chalk (Kau)
Williamson County | W1-718

Spondylus guadalupae - None

Neithea sp.

Buda (Kbu)
Williamson County | W2-643

Neithea sp.

Neithea sp.

Austin Chalk (Kau)
Williamson County | W1-491

Neithea sp.

Neithea sp.

Buda (Kbu)
Williamson County | W2-19

Neithea sp.

Pecten roemeri

Buda (Kbu)
Williamson County | 370

Pecten roemeri

Bivalve

Austin Chalk (Kau)
Williamson County | W1-725

Bivalve

Bivalve Sp.

Austin Chalk (Kau)
Williamson County | W1-674

Bivalve Sp.

Bivalve?

Austin Chalk (Kau)
Williamson County | W1-671

Bivalve?

Bivalve?

Austin Chalk (Kau)
Williamson County | W1-684

Bivalve?

Bivalve Sp.

Austin Chalk (Kau)
Williamson County | W1-670

Bivalve Sp.

Cucullaea Sp.

Austin Chalk (Kau)
Williamson County | W1-687

Cucullaea Sp.

Idonearca?

Austin Chalk (Kau)
Williamson County | W1-673

Idonearca?

Bivalve Sp.

Austin Chalk (Kau)
Williamson County | W1-675

Bivalve Sp.

Lima Wacoensis

Buda (Kbu)
Williamson County | 686

Lima Wacoensis

Liopistha elegantuia?

Austin Chalk (Kau)
Williamson County | W1-495

Liopistha elegantuia?

Gryphaea Sp.

Austin Chalk (Kau)
Williamson County | W1-683

Gryphaea Sp.

Gryphaea aucella

Austin Chalk (Kau)
Williamson County | 3

Gryphaea aucella

Small Oyster

Austin Chalk (Kau)
Williamson County | W1-682

Small Oyster

Texigryphaea washitaensis

Eagle Ford (Kef)
Williamson County | 584

Texigryphaea washitaensis

Oyster Sp.

Austin Chalk (Kau)
Williamson County | W1-676

Oyster Sp.

Oyster Sp.

Austin Chalk (Kau)
Williamson County | W1-493

Oyster Sp.

Oyster Sp.

Austin Chalk (Kau)
Williamson County | W1-494

Oyster Sp.

Oyster?

Austin Chalk (Kau)
Williamson County | W1-677

Oyster?

Toucasia sp.

Edwards Limestone (Kft)
Williamson County | 146

Toucasia sp.

Eoradiolites davidsoni

Edwards Limestone (Kft)
Williamson County | 145

Eoradiolites davidsoni

Plants

Petrified Wood

Eagle Ford (Kef)
Williamson County | 73

Petrified Wood

Petrified Wood

Eagle Ford (Kef)
Williamson County | 573

Petrified Wood

Trace

Therapod Track

Glen Rose (Kgr)
Williamson County | 111

Therapod Track

Burrow

Buda (Kbu)
Williamson County | 577

Burrow

Burrow Atco Member

Austin Chalk (Kau)
Williamson County | 385

Burrow Atco Member

Boring Sponge

Austin Chalk (Kau)
Williamson County | 582

Boring Sponge

Geology

Atco

Austin Chalk (Kau)
Williamson County | 388

Atco

Atco Member

Austin Chalk (Kau)
Williamson County | 258

Atco Member

Atco Member

Austin Chalk (Kau)
Williamson County | 259

Atco Member

Atco Member

Austin Chalk (Kau)
Williamson County | 260

Atco Member

Atco Member

Austin Chalk (Kau)
Williamson County | 386

Atco Member

Bouldin Flags

Eagle Ford (Kef)
Williamson County | 377

Bouldin Flags

Bouldin Flags

Eagle Ford (Kef)
Williamson County | 378

Bouldin Flags

Buda Formation

Buda (Kbu)
Williamson County | 576

Buda Formation - None

Cloice Shale

Eagle Ford (Kef)
Williamson County | 376

Cloice Shale

Dessau Member?

Austin Chalk (Kau)
Williamson County | 270

Dessau Member?

Dessau Member?

Austin Chalk (Kau)
Williamson County | 271

Dessau Member?

Dessau Storm Bed?

Austin Chalk (Kau)
Williamson County | 269

Dessau Storm Bed?

Grainstone

Austin Chalk (Kau)
Williamson County | 248

Grainstone

Jonah Outcrop

Austin Chalk (Kau)
Williamson County | W1-678

Jonah Outcrop

Jonah Outcrop

Austin Chalk (Kau)
Williamson County | W1-679

Jonah Outcrop

Jonah Outcrop

Austin Chalk (Kau)
Williamson County | W1-680

Jonah Outcrop

Outcrop

Buda (Kbu)
Williamson County | 257

Outcrop

Outcrop

Buda (Kbu)
Williamson County | 371

Outcrop

Outcrop

Buda (Kbu)
Williamson County | 372

Outcrop

Packstone/Grainstone

Austin Chalk (Kau)
Williamson County | 247

Packstone/Grainstone

Packstone/Grainstone

Austin Chalk (Kau)
Williamson County | 249

Packstone/Grainstone

Pepper Shale

Eagle Ford (Kef)
Williamson County | 379

Pepper Shale

Shale

Eagle Ford (Kef)
Williamson County | 109

Shale

Beekite

Austin Chalk (Kau)
Williamson County | W1-579

Beekite

Beekite on Shell

Austin Chalk (Kau)
Williamson County | W1-578

Beekite on Shell

Fault/Tilted Beds

Eagle Ford (Kef)
Williamson County | 373

Fault/Tilted Beds

Fault/Tilted Beds

Eagle Ford (Kef)
Williamson County | 374

Fault/Tilted Beds

Fault/Tilted Beds

Eagle Ford (Kef)
Williamson County | 375

Fault/Tilted Beds

Summary Table