Texas Pennsylvanian Fossils

Vertebrate-Chondrichthyes 

Scroll through images below the guide or click to enlarge.  Fossils are in alphabetical order by Genus.

Collections are from Mike DeBrock (MD), Josh Hanley (JH), Dr. Peter Holterhoff (PH), Mark McKinzie (MM),  John McLeod (JM), ), Dr. Ben Neuman (BN), Bob Williams (BW), Sveta Earnest (SE), and Rodney Wise (RW).  

All scales are shown in millimeters unless otherwise noted.                  Download the chart

Images

Taxonomy/Stratigraphy/
Location/Collection

Images

Taxonomy/Stratigraphy/
Location/Collection

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Genus: Acathodes 

Desc: Scales

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Genus: Antliodus 

Species: A. sp.

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Eugeneodontiformes

Family: Helicoprionidae

Genus: Arpagodus?

Species: 

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: BN

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Genus: Bransonella 

Species: B. lingulata

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Eugeneodontiformes

Family: 

Genus: Campyloprion

Species: C. sp.

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum:

Class: Chondrichthyes

Order: Cochliodontiformes

Family: Cochliodontidae

Desc: Cochliodontid

Species: 

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM, BW

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Anachronistiformes

Family: Anachronistidae

Genus: Cooleyella 

Species: C. cf amazonensis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MD

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Ctenacanthiformes 

Family: 

Genus: 

Desc: Misc. Parts

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Ctenacanthiformes 

Family: 

Genus: 

Desc: Braincases

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: BW, MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Cochliodontiformes

Family: Cochliodontidae

Genus: Deltodus

Species: D. angularis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Symmoriiformes

Family: Falcatidae

Genus: Denaea

Species: D. sp.

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MD

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Desc:Euchondrocephalian

Desc: tooth plate

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes  

Order: Eugeneodontiformes

Family: 

Genus: 

Desc: indet

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Eugeneodontiformes

Family: Caseodontidae

Genus: Fadenia 

Species: F.  sp.

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: BW

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Ctenacanthiformes 

Family: Ctenacanthidae

Genus: Glikmanius

Species: G. occidentalis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Desc: Helodontiform 

Desc: tooth whorl

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Helodontiformes

Family: Helodontidae

Genus: Helodus

Species: H. simplex

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Ctenacanthiformes 

Family: Heslerodidae

Genus: Heslerodus

Species: H. divergens

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Desc: Hybodontid

Desc: Scales

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: 

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Orodontiformes

Family: Orodontidae

Genus: Orodus

Species: O. variabilis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: Petalodontiformes

Family: Pristodontidae

Genus: Peripristis

Species: P. semicurcularis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: BW

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order:  Petalodontiformes

Family: Petalodontidae

Genus: Petalodus

Species: P. ohioensis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Genus: Physonemus

Species: P. mirabilis

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: MM

Kingdom: Animalia

Phylum: Chordata

Class: Chondrichthyes 

Order: 

Family: 

Genus: Pssamodus

Desc: grinding tooth

Finis Shale, Graham Formation

Lost Creek Dam, Jacksboro, TX

Collection: