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Collection: Layer 18 Herkimer County, New York, USA

Age	470 - 458.4 Ma (Middle Ordovician)
Interval	Middle Ordovician
Lat/Long	43.2778,-75.1389
Co-ordinates derived from	estimated from map
Location	Denley Limestone
Mindat.org Region (for given coordinates)	Herkimer County, New York, USA
Geographic Scale	outcrop
Formation	Rust
Member	Spillway
Lithology Description	tabular, fine grained lime mudstone (micrite or calcilutite)
Lithology	lime mudstone
Environment	marine indet.

Associated Collections

Collection	Formation	Member	Lithology	Age
Denley Limestone, Trenton Gorge	Denley Limestone	Poland	"shale"	460.9 - 449.5 Ma (Ordovician)
Layer 10	Rust	Spillway	lime mudstone	460.9 - 449.5 Ma (Ordovician)
Layer 3	Rust	Spillway	lime mudstone	460.9 - 449.5 Ma (Ordovician)
Layer 4	Rust	Spillway	lime mudstone	460.9 - 449.5 Ma (Ordovician)
Layer 8	Rust	Spillway	lime mudstone	460.9 - 449.5 Ma (Ordovician)
Layer 11	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 13 (14)	Rust	Spillway	wackestone	470 - 458.4 Ma (Middle Ordovician)
Layer 17	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 19	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 20	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 21	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 22	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 24	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 5	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)
Layer 9	Rust	Spillway	lime mudstone	470 - 458.4 Ma (Middle Ordovician)

Recorded Fossils

Accepted Name	Hierarchy	Preservation	Age
Lepidocoleus jamesi species	Animalia : Annelida : Polychaeta : Phyllodocida : Lepidocoleidae : Lepidocoleus : *Lepidocoleus jamesi*	body	470 - 458.4 Ma Middle Ordovician
Isotelus gigas species	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Isotelus : *Isotelus gigas*	low Mg calcite, chitin body,trace	460.9 - 449.5 Ma Ordovician
Isotelus walcotti species	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Isotelus : *Isotelus walcotti*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Isotelus gigas species	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Isotelus : *Isotelus gigas*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Isotelus genus	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : *Isotelus*	low Mg calcite, chitin body	470 - 458.4 Ma Middle Ordovician
Isotelus gigas species	Animalia : Arthropoda : Trilobita : Asaphida : Asaphidae : Isotelus : *Isotelus gigas*	low Mg calcite, chitin body	470 - 458.4 Ma Middle Ordovician
Hypodicranotus striatulus species	Animalia : Arthropoda : Trilobita : Asaphida : Remopleurididae : Hypodicranotus : *Hypodicranotus striatulus*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Nanillaenus genus	Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : *Nanillaenus*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Bumastoides genus	Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : *Bumastoides*	low Mg calcite, chitin body	470 - 458.4 Ma Middle Ordovician
Primaspis (Primaspis) subgenus	Animalia : Arthropoda : Trilobita : Odontopleurida : Odontopleuridae : Primaspis : *Primaspis (Primaspis)*	body	460.9 - 449.5 Ma Ordovician
Diacanthaspis genus	Animalia : Arthropoda : Trilobita : Lichida : Odontopleuridae : *Diacanthaspis*	body	460.9 - 449.5 Ma Ordovician
Primaspis (Primaspis) subgenus	Animalia : Arthropoda : Trilobita : Odontopleurida : Odontopleuridae : Primaspis : *Primaspis (Primaspis)*	body	470 - 458.4 Ma Middle Ordovician
Meadowtownella genus	Animalia : Arthropoda : Trilobita : Lichida : Odontopleuridae : *Meadowtownella*	low Mg calcite, chitin body	470 - 458.4 Ma Middle Ordovician
Primaspis (Primaspis) subgenus	Animalia : Arthropoda : Trilobita : Odontopleurida : Odontopleuridae : Primaspis : *Primaspis (Primaspis)*	body	470 - 458.4 Ma Middle Ordovician
Flexicalymene senaria species	Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Flexicalymene : *Flexicalymene senaria*	low Mg calcite, chitin body,trace	460.9 - 449.5 Ma Ordovician
Ceraurus pleurexanthemus species	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Ceraurus : *Ceraurus pleurexanthemus*	body	460.9 - 449.5 Ma Ordovician
Sphaerocoryphe genus	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : *Sphaerocoryphe*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Ceraurus genus	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : *Ceraurus*	body	460.9 - 449.5 Ma Ordovician
Ceraurus pleurexanthemus species	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Ceraurus : *Ceraurus pleurexanthemus*	body	470 - 458.4 Ma Middle Ordovician
Ceraurus genus	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : *Ceraurus*	body	470 - 458.4 Ma Middle Ordovician
Achatella achates species	Animalia : Arthropoda : Trilobita : Phacopida : Pterygometopidae : Achatella : *Achatella achates*	body	460.9 - 449.5 Ma Ordovician
Calyptaulax genus	Animalia : Arthropoda : Trilobita : Phacopida : Pterygometopidae : *Calyptaulax*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Achatella achates species	Animalia : Arthropoda : Trilobita : Phacopida : Pterygometopidae : Achatella : *Achatella achates*	body	460.9 - 449.5 Ma Ordovician
Calyptaulax genus	Animalia : Arthropoda : Trilobita : Phacopida : Pterygometopidae : *Calyptaulax*	low Mg calcite, chitin body	460.9 - 449.5 Ma Ordovician
Lingula riciniformis species	Animalia : Brachiopoda : Lingulata : Lingulida : Lingulidae : Lingula : *Lingula riciniformis*	phosphatic body,trace	460.9 - 449.5 Ma Ordovician
Schizocrania genus	Animalia : Brachiopoda : Lingulata : Lingulida : Trematidae : *Schizocrania*	phosphatic body,trace	460.9 - 449.5 Ma Ordovician
Paucicrura rogata species	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Paucicrura : *Paucicrura rogata*	body,trace	460.9 - 449.5 Ma Ordovician
Platystrophia genus	Animalia : Brachiopoda : Rhynchonellata : Orthida : Platystrophiidae : *Platystrophia*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Rafinesquina alternata species	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Rafinesquina : *Rafinesquina alternata*	body,trace	460.9 - 449.5 Ma Ordovician
Rafinesquina genus	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : *Rafinesquina*	body,trace	460.9 - 449.5 Ma Ordovician
Sowerbyella genus	Animalia : Brachiopoda : Strophomenata : Strophomenida : Sowerbyellidae : *Sowerbyella*	body,trace	460.9 - 449.5 Ma Ordovician
Graptodictya genus	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Ptilodictyidae : *Graptodictya*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Pachydictya genus	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Rhinidictyidae : *Pachydictya*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Stictopora genus	Animalia : Bryozoa : Stenolaemata : Cryptostomida : Ptilodictyidae : *Stictopora*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Bythopora genus	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Batostomellidae : *Bythopora*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Dekayia genus	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : *Dekayia*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Prasopora genus	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Monticuliporidae : *Prasopora*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Eridotrypa mutabilis species	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Aisenvergiidae : Eridotrypa : *Eridotrypa mutabilis*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Newportopora genus	Animalia : Bryozoa : Stenolaemata : Trepostomatida : *Newportopora*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Amplexopora genus	Animalia : Bryozoa : Stenolaemata : Trepostomatida : Amplexoporidae : *Amplexopora*	low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Dapsilodus mutatus species	Animalia : Chordata : Conodonta : Belodellida : Dapsilodontidae : Dapsilodus : *Dapsilodus mutatus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Oistodus genus	Animalia : Chordata : Conodonta : Conodontophorida : *Oistodus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Amorphognathus genus	Animalia : Chordata : Balognathidae : *Amorphognathus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Icriodella genus	Animalia : Chordata : Balognathidae : *Icriodella*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Distacodus genus	Animalia : Chordata : Conodonta : Distacodidae : *Distacodus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Phragmodus genus	Animalia : Chordata : Conodonta : *Phragmodus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Scolopodus insculptus species	Animalia : Chordata : Conodonta : Strachanognathidae : Scolopodus : *Scolopodus insculptus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Periodon grandis species	Animalia : Chordata : Conodonta : Ozarkodinida : Periodon : *Periodon grandis*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Drepanoistodus suberectus species	Animalia : Chordata : Conodonta : Protopanderodontida : Drepanoistodus : *Drepanoistodus suberectus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Drepanoistodus genus	Animalia : Chordata : *Drepanoistodus*	hydroxylapatite body,trace	460.9 - 449.5 Ma Ordovician
Conchopeltis genus	Animalia : Cnidaria : Scyphozoa : *Conchopeltis*	body	460.9 - 449.5 Ma Ordovician
Merocrinus genus	Animalia : Echinodermata : Crinoidea : *Merocrinus*	high Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Cincinnaticrinus genus	Animalia : Echinodermata : Crinoidea : *Cincinnaticrinus*	high Mg calcite body	460.9 - 449.5 Ma Ordovician
Ectenocrinus simplex species	Animalia : Echinodermata : Crinoidea : Homocrinida : Homocrinidae : Ectenocrinus : *Ectenocrinus simplex*	high Mg calcite body	460.9 - 449.5 Ma Ordovician
Heterocrinus heterodactylus species	Animalia : Echinodermata : Crinoidea : Heterocrinidae : Heterocrinus : *Heterocrinus heterodactylus*	high Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Lichenocrinus genus	Animalia : Echinodermata : Crinoidea : *Lichenocrinus*	high Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Dendrocystites genus	Animalia : Echinodermata : Soluta : Dendrocystitida : *Dendrocystites*	high Mg calcite body,trace	460.9 - 449.5 Ma Ordovician
Enoploura balanoides species	Animalia : Echinodermata : Stylophora : Mitrata : Anomalocystitidae : Enoploura : *Enoploura balanoides*	high Mg calcite body	460.9 - 449.5 Ma Ordovician
Ctenodonta peracuta species	Animalia : Mollusca : Bivalvia : Solemyida : Ctenodontidae : Ctenodonta : *Ctenodonta peracuta*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Cameroceras trentonense species	Animalia : Mollusca : Cephalopoda : Endoceratidae : Cameroceras : *Cameroceras trentonense*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Endoceras proteiforme species	Animalia : Mollusca : Cephalopoda : Endoceratidae : Endoceras : *Endoceras proteiforme*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Cyrtorizoceras genus	Animalia : Mollusca : Cephalopoda : Oncoceratidae : *Cyrtorizoceras*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Oncoceras genus	Animalia : Mollusca : Cephalopoda : Oncoceratidae : *Oncoceras*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Ordogeisonoceras amplicameratum species	Animalia : Mollusca : Cephalopoda : Orthocerida : Geisonoceratidae : Ordogeisonoceras : *Ordogeisonoceras amplicameratum*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Geisonoceras genus	Animalia : Mollusca : Cephalopoda : Geisonoceratidae : *Geisonoceras*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Trocholites ammonius species	Animalia : Mollusca : Cephalopoda : Trocholitidae : Trocholites : *Trocholites ammonius*	aragonite body,trace	460.9 - 449.5 Ma Ordovician
Sinuites cancellatus species	Animalia : Mollusca : Gastropoda : Bellerophontida : Sinuitidae : Sinuites : *Sinuites cancellatus*	aragonite, low Mg calcite body,trace	460.9 - 449.5 Ma Ordovician

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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