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St. Louis Pennsylvanian Fossils of the Altamont Formation

Middle Pennsylvanian Series - Desmoinesian Stage
Marmaton Group - Altamont Formation

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Phylum Porifera (sponges)
Phylum Cnidaria (corals)
Phylum Ectoprocta (bryozoans)
Phylum Brachiopoda (brachiopods)
Phylum Mollusca (
chitons, cephalopods, clams, gastropods, rostroconchs)
Phylum Arthropoda (trilobites)
Phylum Echinodermata (crinoids)
Phylum Chordata (sharks & bony fish - Tetrapod)
Plants
Trace Fossils

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Phylum Porifera (sponges)

Class Calcarea


Regispongia contorta (King) & spicule


Regispongia contorta (King)
attached to a crinoid column


Sponge holdfast


Phylum Cnidaria
(corals)

Class Tabulata


Michelinia sp.


Phylum Ectoprocta (bryozoans)


Prismopora triquetra Hall 1883


Phylum Brachiopoda (brachiopods)

Class Inarticulata


Orbiculoidea missouriensis (Shumard, 1858)

Class Articulata


Composita subtilita (Hall, 1852)


Beecheria bovidens (Morton, 1836)


Derbyia crassa (Meek & Hayden, 1859)


Crurithyris planoconvexa (Shumard, 1855)


Hustedia mormoni (Marcou, 1858)


Kozlowskia haydenensis (Girty, 1903)


Kozlowskia splendens


Meekella striatocostata Cox

Useful Rules for Identification
Brachiopods and Bivalves


Phylum Mollusca

Class Polyplacophora (chitons)


chiton head valve
Glaphurochiton carbonarius (Stevens, 1858)


chiton intermediate valve
Glaphurochiton carbonarius (Stevens, 1858)


chiton tail valve
Glaphurochiton carbonarius (Stevens, 1858)

Class Cephalopoda (cephalopods)


Domatoceras sp.


Temnocheilus annulonodosus ?


Parametacoceras bellatulum Miller & Owen, 1934

Class Bivalvia (clams)


Astartella concentrica (Conrad, 1842)


Astartella varica McChesney, 1859


Nuculopsis girtyi


Parallelodon sp.

Useful Rules for Identification
Brachiopods and Bivalves

Class Gastropoda (gastropods - snails)


Amphiscapha reedsi


Jedria sp.


Jedria meeki (Knight, 1933)


Orthonema chorda



Platyceras (Orthonychia) parva


Pseudozygopleura scitula (2 cm)


Pseudozygopleura scitula (3 cm)



Shansiella carbonaria


Shansiella carbonaria (early juvenile)


Strobeus sp.


Strobeus sp.


Strobeus primigenius (Conrad, 1835)


Trachydomia nodosa (Meek & Worthen, 1861)


Trepospira depressa and Trepospira minima

Class Rostroconchia (rostroconchs)


Pseudobigalea crista Hoare et al., 1982


Pseudoconocardium sp.


Phylum Arthropoda
(trilobites)

Class Trilobita


Ditomopyge scitula (enrolled)


Ditomopyge sp.


Phylum Echinodermata
(crinoids)

Class Crinoidea



Arm plates of disparid inadunates crinoids


Ethelocrinus sp. (plates)


Phylum Chordata


Sharks and bony fish

Petrodus
sp.
dermal denticles (oscicles)


   
  
Petrodus sp. - dermal denticles

Shark Spines & Scales phosphatic nodules


Listracanthus sp.


Fish scale?


Assortment of unbroken nodules

Teeth


Chomatodus
sp.


Agassizodus sp.


Edestus sp.


Petalodus sp.


Tetrapod


Tetrapod (rib fragment)


Plants


Stigmaria sp. - Lycopod root fragment


Trace Fossils

Borings and markings



Borings on crinoid columns


Unusual parasitic markings
on crinoid column

Worm tube constructions


Serpulid worm tubes on a bivalve


Predator borings on Inarticulate Brachiopod

Rooting traces


root molds


root molds

Distinguishing roots from burrows
Dr. Andrew K. Rindsberg

Some Useful Rules of Fossil Identification

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Carboniferous Fossils of Russia
Produced by: Barry Sutton, Alexander Davydov and Tom Yancey
This website is presented to showcase Carboniferous fossils of the
Moscow region of Russia; an area that is world famous for beautifully
preserved fossils.


Russia-USA joint venture Paleontology project
Language separates us ... Pictures bring us together
Alexander Davydov (Moscow, Russia)
Barry Sutton (St. Louis, Missouri - USA)


Paleontology and Geology of Missouri
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Barry Sutton ("That Guy on the Side of the Road")
BGSutton@LakeNeosho.org

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answers and never be embarrassed to say ... "I don't know."

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