Fossils Found on Field Trips

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T H U M B N A I L     I N D E X

FOSSILS FOUND ON FIELD TRIPS

Articulate Brachiopods

Dalmanella (formerly Onniella)
Glyptorthis
Hebertella
Holtedahlina sulcata
Lepidocyclus/Hiscobeccus
Leptaena
Plaesiomys subquadrata
Platystrophia
Platystrophia cypha
Platystrophia hopensis
Platystrophia ponderosa
Plectorthis
Rafinesquina
Rafinesquina nasuta
Retrorsirostra carleyi
Rhynchotrema
Sowerbyella
Strophomena
Thaerodonta
Zygospira

Inarticulate Brachiopods

Trematis
Pseudolingula
Petrocrania scabiosa
Philhedra
Schizocrania filosa

Bryozoans

Constellaria
Spatiopora
Prasapora
Aspidopora
Escaropora
Fenestrate Bryozoans
Other Bryozoans

Cephalopods

Coiled Cephalopods
Straight Shelled Cephalopods

Coral

Grewingkia Horn Coral
Streptelasma Horn Coral
Tetradium Colonial Coral
Protaraea Colonial Coral
Other Colonial Corals

Crinoids

Ectenocrinus
Cincinnaticrinus
Cupulocrinus
Anomalocrinus
Other Crinoid Calyxes
Crinoid Holdfasts
Crinoid Stems
Other Crinoid Parts

Echinoderms Other Than Crinoids

Edrioasteroids
Cystoid Rhombiferans
Cystoids
Carpoids
Sea Stars
Cyclocystoids

Whole Flexicalymene Trilobites

In the Prone Position
In the Enrolled Position
Partially Enrolled
Group Shots

Flexicalymene Parts

Glabella
Thorax
Pygidium
Free Cheek
Hypostome
Misc Molts

Trilobite: Isotelus

Enrolled Isotelus
Prone Isotelus
Isotelus Eye
Isotelus Glabella
Isotelus Thorax Segments
Isotelus Pygidium
Isotelus Hypostoma
Isotelus Genal Area and Spine
Misc. Isotelus Fragments

Other Trilobites

Cryptolithus
Acidaspis
Ceraurinus
Tricopelta
Primaspis
Ceraurus
Other Trilobites

Gastropods

Monoplacophorans
Cyclonema
Phragmolites
Liospira
Loxoplocus
Other Gastropods

Ichnofossils (Trace Fossils)

Rusophycus (Trilobite Burrow)
Cruziana
Borings
Burrows
Catellocaula
Other Trace Fossils

Micro and Mini Fossils

Ostracodes
Scolecodonts

Pelecypods

Ambonychia and Similar
Modiolopsis and Similar
Caritodens
Other Clams

Plant Fossils

Problematica

Cornulites and Tentaculites
Machaeridian Plates
Conularia
Graptolites
Sphenothallus
Unidentified

Fossil Identification Photos: Ordovician
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Fossil Identification Photos: Non-Ordovician
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