Pennsylvanian Era (250-300 Million Years Ago)
Fossil finds from Mineral Wells, Jacksboro, Brownwood, Brady and Marathon
Trilobite Ditomopyge scitula
Shark Petalodus ohioensis
Shark Petalodus ohioensis
Nautiloid Brachycycloceras sp.
Goniatite Glaphyrites millsi
Goniatite Prouddenites grafordensis
Goniatite Imitoceras grahamensis
Goniatite Peritrochia sp,
Goniatite Wiedeyoceras pingue
Nautiloid Stenopoceras sp.
Goniatite Eoasianites anguloumbilicatus
Goniatite Vidrioceras uddeni
Goniatites Gonioloboceras sp.
Goniatite Pennoceras curtum
Cephalopod Bactrites finisensi
Cephalopod Pseudorthoceras sp.
Cephalopod Euloxoceras greenei
Cephalopod Pseudorthoceras sp.
Cephalopod Poterioceras subllipticum
Echinoid Plate Pronechinus
Echinoid Archeocidaris sp.
Echinoid Archeocidaris sp. Spine
Echinoid Archeocidaris Plate
Crinoid Delocrinus vulgatus
Crinoid Calyx Paragassizocrinus tarri
Crinoid Allegecrinus bassleri
Crinoid Calyx Paramphicrinus
Crinoid Primibrachial axillary
Crinoid Primibrachial axillary
Crinoid Primibrachial axillary
Crinoid Primibrachial axillary
Fern Pinnule Marattialean sp.
Plant Seed Hexaloba finisensia
Coral Lophophyillidium profundum
Coral Lophophyllidium spinosum
Coral Lophophyillidium proliferum
Coral Striatopora plummeri
Coral Cladochonus fragilis
Gastropod Spiroscala georgiannae
Gastropod Euphemites vittatus
Gastropod Cymatospira montfortianus
Gastropod Pseudozygopleura scitula
Gastropod Pharkidonotus percarinatus
Gastropod Spirscala pagoda
Gastropod Phymatopleura sp.
Gastropod Euphemites enodus
Gastropod Euphemites blaneyanus
Gastropod Bellerophon graphicus
Gastropod Meekospira peracuta
Gastropod Trepospira discoidalis
Gastropod Glabrocingulum sp.
Gastropod Euconospira turbiniform
Gastropod Glabrocingulum wannense
Gastropod Glabrocingulum grayvillense
Gastropod Worthenia tabulata
Gastropod Straparollus sp.
Gastropod Royalella swallowiana
Gastropod Donaldina stevensana
Gastropod Soleniscus regularis
Rostrochonch Apotocardium sp.
Brachiopod Neochonetes granulifer
Brachiopod Punctospirifer kentuckyensis
Brachiopod Neochonetes acanthophorus
Brachiopod Cleiothyridina orbicularis
Brachiopod Unknown Underside valve
Brachiopod Wellerella osagensis
Brachiopod Rhipidomella carbonaria
Brachiopod Husteda mormoni
Brachiopod Chonetinella rostrata
Brachiopod Eridmatus texanus
Brachiopod Kozlowskia splendens
Brachiopod Linoproductus cora
Brachiopod Neochonetes granulifer
Brachiopod Chonetinella verneuiliana
Brachiopod Crurithyris planoconvexa
Brachiopod Hystriculina texana
Brachiopod Parajuresania nebrascensi
Brachiopod Composita subtilita
Brachiopod Acanthospirifer opimus
Brachiopod Echinoconchus semipunctatus
Brachiopod Orbiculoidea missouriensis
Brachiopod Cancrinella boonensis
Brachiopod Derbyia crassa
Brachiopod Reticulatia americana
Brachiopod Orbiculoidea capuliformis
Bivalve Derbyia jacksboroensis
Brachiopod Linoproductus cora
Bivalve Edmondia nebrascensis
Bivalve Pteronites percuata
Bivalve Orthomyalina subquadrata
Bivalve Acanthopecten sp.
Bivalve Allorisma terminale
Sponge Amblysiphonella prosseri
Bryozoan Fistulipora incrustans
Bryozoan Synocladia biserialis
Bryozoan Tabulipora carbonaria
Size 1/2 inch
Scaphopod Plagioglypta canna
Scaphopod Proentalium sublaeve
Scaphopod Plagioglypta annulostriata