North Texas Fossils
Cretaceous Era (65 - 150 Million Years Ago)
Fossil finds from Dallas, Ft. Worth, Midlothian, Post Oak Creek,
Dennison, Lake Texoma and North Sulphur River
Atco, Eagle Ford, Ozan, Kiamichi, Woodbine and Other Formations
Since North Texas and Central Texas are both predominantly Cretaceous they do share many of the same fossil species, therefore I am not including ALL fossils found in North Texas, only ones that are significantly different or especially good examples.
Mosasaur Tylosaurus sp.
North Sulphur River
Reptile Coniasaurus sp.
Post Oak Creek
Mosasaur Tooth
Wolfe City Formation
Mosasaur Jaw Fragment
North Sulphur River
Mosasaur Vertebrae
North Sulphur River
Plesiosaur Vertebrae
Woodbine Formation
Unknown Bone
North Sulphur River
Mosasaur quadrate Bone
North Sulphur River
Mosasaur Rib
North Sulphur River
Turtle Plastron
North Sulphur River
Turtle Coracoid Bone
North Sulphur River
Turtle Plastron
Post Oak Creek
Ammonite Trachyscaphites spiniger
North Sulphur River
Ammonite Menabites danei
North Sulphur River
Ammonite Pachydiscus paulsoni
North Sulphur River
Ammonite Unknown
Ammonite Engonoceras serpentium
Paw Paw Formation
Ammonite Acanthoceras sp.
Paw Paw Formation
Ammonite Didymoceras sp.
Ammonite Calycoceraas tarrantense
Ammonite Microsulcatoceras texanum
Eagle Ford Formation
Ammonite Eopachydiscus marcianus
Ft. Worth Formation
Ammonite Mortoniceras nodosa
Duck Creek Formation
Ammonite Scaphites bosquensis
Grayson Formation
Ammonite Submortoniceras aff condamyi
North Sulphur River
Ammonite Trachyscaphites spiniger
North Sulphur River
Ammonite Glyptoxoceras
North Sulphur River
Ammonite Prionocyclus hyatti
Eagle Ford Formation
Ammonite Metoicoceras whitei
Woodbine Formation
Ammonite Oxytropidoceras
Walnut Formation
Ammonite Engonoceras serpentium
Grayson Formation
Ammonite Otoscaphites subevolutus
Grayson Formation
Ammonite Mariella worthensis
Grayson Formation
Ammonite Baculites
North Sulphur River
Ammonite Baculites
North Sulphur River
Ammonite Baculites
North Sulphur River
Ammonite Metaptychoceras annulatum
Eagle Ford Formation
Ammonite Sciponoceras gracile
Eagle Ford Formation
Ammonite Baculites sp. cfr. bacuioides
Greyson Formation
Echinoid Heteraster mexicanus
Kiamichi Formation
Echinoid Pliotoxaster whitei
Duck Creek Formation
Echinoid Tetragramma taffi
Ft. Worth Formation
Echinoid Goniophorus whitneyi
Greyson Formation
Echinoid Goniophorus scotti
Duck Creek Formation
Echinoid Spine
Eagle Ford Formation
Echinoid Cidaris Spine
Paw Paw Formation
Echinoid Cidaris Spine
Paw Paw Formation
Echinoid Cidaris Plate
Paw Paw Formation
Crustacean - Lobster
Post Oak Creek
Unknown Crab Claw
Eagle Ford Formation
Unknown Crab Claw
Post Oak Creek
Crab Claw
Atco Formation
Crab Claw
Post Oak Creek
Crab Claw
Post Oak Creek
Crab Callianassa klofi
Duck Creek Formation
Unknown Crab
Grayson Formation
Unknown Crab
Woodbine Formation
Unknown Crab
Post Oak Creek
Unknown Crab
Post Oak Creek
Unknown Crab
Post Oak Creek
Shark Cretodus crassidens
Eagle Ford Formation
Shark Ptychodus whipplei
Atco Formation
Shark Squalicorax falcatus
Atco Formation
Shark Ptychodus whipplei
Post Oak Creek
Shark Ptychodus atcoensis
Atco Formation
Shark Ptychodus mammillaris
Atco Formation
Shark Scapanorhynchus raphiodon
Atco Formation
Shark Ptychodus anonymous
Post Oak Creek
Shark Squalicorax kaupi
North Sulphur River
Shark Microcorax crassus
North Sulphur River
Shark Ptychodus sp.
Atco Formation
Shark Pseudocorax granti
North Sulphur River
Shark Odontaspis aculeatus
North Sulphur River
Shark Carcharias sp.
Post Oak Creek
Shark Carcharias sp.
North Sulphur River
Sawfish Ptychotrygon triangularis
Post Oak Creek
Shark Ptychodus sp.
Post Oak Creek
Shark Dallasiella willistoni
Post Oak Creek
Shark Hybodus sp.
Woodbine Formation
Shark Cantioscyllium decipiens
Atco Formation
Sawfish Texatrygon hooveri
Post Oak Creek
Shark Cretodus sp. posterior
Post Oak Creek
Shark Carcharias samhammeri
North Sulphur River
Shark Pseudocorax laevi
Atco Formation
Shark Cretolamna appendicula
Paw Paw Formation
Sawfish Ischyrhiza mira
Post Oak Creek
Shark Scapanorhynchus texanus
Post Oak Creek
Sawfish Ptychotrygon triangularis
Post Oak Creek
Shark Pseudocorax granti
North Sulphur River
Shark Scapanorhynchus texanus
North Sulphur River
Shark Carcharias amonensis
Woodbine Formation
Shark Dallasiella sp.
North Sulphur River
Shark Leptostyrax macrorhiza
Woodbine Formation
Shark Squalicorax falcatus
Eagle Ford Formation
Sawfish Ischyrhiza texana
Post Oak Creek
Ray Rhinobatos lobatus
Woodbine Formation
Shark Hybodus sp.
Post Oak Creek
Shark Dallasiella willistoni
Post Oak Creek
Shark Ptychodus sp.
Post Oak Creek
Ray Pseudohypolophus mcnultyi
Woodbine Foramtion
Sawfish Ischyrhiza mira
North Sulphur River
Sawfish Sclerorhynchus sp.
North Sulphur River
Dermal Denticle
Post Oak Creek
Dermal Denticle
North Sulphur River
Dermal Denticle
Post Oak Creek
Shark Cartilege
North Sulphur River
Shark Vertebra
North Sulphur River
Shark Vertebra
Atco Formation
Shark Vertebra
Eagle Ford Formation
Shark Vertebrae
Post Oak Creek
Fish Vertebra
Post Oak Creek
Fish Enchodus
North Sulphur River
Fish Enchodus sp.
North Sulphur River
Fish Jaw
North Sulphur River
Fish Hadrodus sp.
North Sulphur River
Unknown Fish Tooth
North Sulphur River
Fish Pachyrhizodus sp.
Post Oak Creek
Fish Xiphactinus sp.
Atco Formation
Fish Pycnodonte sp.
Woodbine Formation
Unknown Fish Tooth
Eagle Ford Formation
Fish Enchodus sp.
North Sulphur River
Unknown Tooth
Woodbine Formation
Unknown Fish Tooth
Woodbine Formation
Gastropod Banis siniformis
Eagle Ford Formation
Gastropod Turritella sp.
North Sulphur River
Gastropod Euspira sp.
North Sulphur River
Unknown Gastropod
Grayson Formation
Unknown Gastropod
Grayson Formation
Gastropod Pseudomelania basicostata
Post Oak Creek
Oyster Peilinia quadripilicata
Paw Paw Formation
Oyster Texigryphaea washitensis
Paw Paw Formation
Oyster Rastellum carinatum
Paw Paw Formation
Bivalve Lopha bellaplicata
Post Oak Creek
Bivalve Unknown
North Sulphur River
Bivalve Unknown
North Sulphur River
Bivalve Pholodomya sanctisaba
Walnut Formation
Brachiopod Rhynchonnelid
North Sulphur River
Bivalve Neithea texana
Greyson Formation
Bivalve Scabrotrigonia emoryi
Duck Creek Formation
Bivalve Plicatula subgurgitis
Greyson Formation
Oyster Ilymatogyra arietina
Greyson Formation
Bivalve Unknown
Paw Paw Formation
Bivalve Plicatula incongrua
Paw Paw Formation
Starfish Ossicle
Grayson Formation
Crinoid Plotocrinus sp.
Eagle Ford Formation
Crinoid Roveocrinus sp.
Greyson Foramtion
Foraminifera Dentalina mutablis
North Sulphur River
Coral Microbacia sp.
North Sulphur River
Coral Trochocyathus sp.
North Sulphur River
Rudist Durania sp.
North Sulphur River
Worm Pyrgopolon squamosus
Grayson Formation
Worm Pyrgopolon onyx
North Sulphur River
Worm Pyrgopolon squamosus
North Sulphur River