Pennsylvanian Era

Pennsylvanian Era (250-300 Million Years Ago)

Fossil finds from Mineral Wells, Jacksboro, Brownwood, Brady and Marathon

Trilobite Molt

Size 1/8 Inch

Trilobite Pygidium

Size 1/8 inch

Trilobite

Size 1/8 Inch

Nautiloid Tainoceras

Size 3 Inches

Nautiloid Agathiceras ciscoense

Size 1 1/4 inch


Goniatite Eoasianites anguloumbilicatus

Size 1 1/4 Inch

Goniatites Gonioloboceras sp.

Size 2 inches

Goniatite Pennoceras curtum

Size 1 1/4 inch

Nautiloid Stenopoceras sp.

Size 1 inch

Cephalopod Bactrites finisensi

Size 1 inch

Cephalopod Orthoceras

Size 1 1/2 inch

Cephalopod Euloxoceras greenei

Size 1 inch

Cephalopod Pseudorthoceras sp.

Size 2 inches

Cephalopod Poterioceras subllipticum

Size 1 1/2 inch

Trilobite Genal Spine

Size 1/2 inch

Scaphopod Plagioglypta canna

Size 2 inches

Scaphopod Plagioglypta annulostriata

Size 1/2 inch

Scaphopod Proentalium sublaeve

Size 1/4 inch

Echinoid Plates

Size 1/16 and 1/4

Echinoid Hash Plate Pronechinus

Size 1 Inch

Echinoid Plate

Size 1/4 Inch

Echinoid Plates Archeocidaris

Size 1 inch

Echinoid Plate Pronechinus

Size 1/16 inch

Echinoid Spine

Size 1 inch

Echinoid Spine

Size 1/2 inch

Echinoid Plate Archeocidaris

Size 1/8 inch

Echinoid Spine

Size 1/2 inch

Crinoid Spine (regenerating)

Size 1/4 inch

Crinoid Graffhamicrinus Basal Cup

Size 1 inch largest

Crinoid Spine

Size 1 inch

Crinioid Delecrinus vulgatus

Size 2 inches

Crinoid Arms

Size 1/4 inch

Crinoid Basal Cup

Size 1/4 inch

Crinoid Basal Cup

Size 1/2 Inch

Crinoid Basal Cup Paragassizocrinus tarri

Size 1/2 Inch

Crinoid Columnal

Size 1/4 Inch

Crinoid Allegecrinus bassleri

Size 1/8 inch

Crinoid Basal Cup

Size 1/4 inch

Crinoid Columnal

Size 1/4 inch

Crinoid Columnal

Size 1/4 inch

Crinoid Columnal

Size 1/4 inch

Crinoid Columnal

Size 1/8 inch

Crinoid Basal Cup

Size 1/2 inch

Coral Palaeacis sp,

Size 1 inch

Coral Zaphrentis gibsoni

Size 1 1/4 inch

Coral Lophophyllidium spinosum

Size 2 Inches

Coral Michelinia sp.

Size 1 Inch

Coral Lophophyillidium proliferum

Size 1 Inch

Coral Striatopora plummeri

Size 2 Inches

Coral Cladochonus fragilis

Size 1 1/4 Inch

Shark Tooth Petalodus

Size 1 inch

Gastropod Cymatospira montfortianus

Size 1/2 inch

Gastropod Pseudozygopleura scitula

Size 1/4 inch

Gastropod Pharkidonotus percarinatu

Size 1/2 inch

Gastropod Spirscala pagoda

Size 1/4 Inch

Gastropod Strobelus

Size 1/2 Inch

Gastropod Phymatopleura sp.

Size 1/2 inch

Gastropod Euphemites enodus

Size 1/4 inch

Gastropod Euphemites blaneyanus

Size 1/4 inch

Gastropod Bellerophon graphicus

Size 1/2 inch

Gastropod Meekospira peracuta

Size 1/2 Inch

Gastropod Trepospira discoidalis

Size 1 Inch

Gastropod Goniasma

Size 1 Inch

Gastropod Glabrocingulum grayvillense

Size 1 Inch

Gastropod Straparolles sp.

Size 1 Inch

Gastropod Worthenia tabulata

Size 1 1/2 Inch

Gastropod Royalella swallowiana

Size 1/4 inch

Gastropod Donaldina stevensana

Size 1/2 inch

Gastropod Soleniscus regularis

Size 1/2 inch

Gastropod Euomphalus

Size 1 3/4 inch

Brachiopod Neochontes

Size 1/2 inch

Brachiopod Marginifera sp.

Size 1 inch

Brachiopod Neospirifer

Size 1 1/2 Inch

Brachiopod Wellerella

Size: 1 Inch

Brachiopod Punctospirifer

Size 1/4 Inch

Brachiopod Rhipidomella carbonaria

Size: 1/2 inch

Brachiopod Meekella sp.

SIze 11/4 inch

Brachiopod Husteda sp.

Size 1/4 inch

Brachiopod Chonetinella rostrata

Size 1/8 inch

Brachiopod Eridmatus texanus

Size 1 inch

Brachiopod Quadrochonetes geronticus

Size 1/8 inch

Brachiopod Chonetinella verneuiliana

Size 1/2 Inch

Brachiopod Crurithyris planoconvexa

Size: 1/2 Inch

Brachiopod Hystriculina texana

Size: 1 Inch

Brachiopod Juresenia sp.

1 1/2 Inch

Brachiopod Composita subtilita

1 Inch

Brachiopod Acanthospirifer opimus

Size 1 Inch

Brachiopod Echinoconchus semipunctatus

Size 1 Inch

Bivalve Pteronites percuata

Size 1 Inch

Bivalve Derbyia ciscoense

Size 1/8 inch

Bivalve Conularia

Size 1/2 inch

Bivalve Derbyia jacksboroensis

Size 3 inches

Brachiopod Linoproductus cora

Size 2 inches

Bivalve Edmondia nebrascensis

Size 1 Inch

Bivalve Polidevcia arata

Size 1/4 Inch

Bivalve Nuculopsis sp

Size 1 inch

Bivalve Astartella vera

Size 1 inch

Bivalve Meekopinna americana

Size 1/2 inch

Bivalve Yoldia gabra

Size 1 inch

Bivalve Orthomyalina subquadrata

Sze 3 inches

Bivalve Acanthopecten

Size 1/2 inch

Bivalve Allorisma terminale

Size 2 inches

Sponge Girtycoelia

Size 1/4 inch

Sponge Wewekkola

Size 1 1/2 inch

Sponge Amblysiphonella prosseri

Size 1/4 inch

Bryozoan Fenestella sp,

Size 1/2 inch

Bryozoan Rhombopora sp,

Size 1 inch

Bryozoan Fistulipora sp.

Size 1/2 inch

Bryozoan Synocladia biserialis

Size 1 inch

Bryozoan Tabulipora sp.

Size 2 inches

Bryozoan Tabulipora carbonaria

Size 1/2 inch

Fern Pinnule Marattialean sp.

Size 3/4 inch

Plant Seed Hexaloba finisensia

Size 1 inch

Wood Unknown

Sixe 1 inch