Sugar River Limestone, Trenton Gorge: Chatfieldian, New York

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
Crinoidea informal indet. sp. 1 Miller 1821
Crinoidea informal indet. sp. 2 Miller 1821
Crinoidea informal indet. sp. 3 Miller 1821
Crinoidea informal indet. sp. 4 Miller 1821
Crinoidea informal indet. sp. 5 Miller 1821
Crinoidea informal indet. sp. 6 Miller 1821
Crinoidea - Heterocrinidae
Heterocrinus heterodactylus Hall 1847
Crinoidea - Myelodactylida - Iocrinidae
Iocrinus subcrassus (Meek and Worthen 1865)
Iocrinus trentonensis Walcott 1883
Crinoidea
Lichenocrinus sp. Hall 1866
Conodonta - Prioniodontida - Polyplacognathidae
Polyplacognathus ramosa
Conodonta - Prioniodontida - Balognathidae
Rhodesognathus elegans (Rhodes 1953)
Amorphognathus tvaerensis
Conodonta - Prioniodontida
Phragmodus undatus
Conodonta - Belodellida - Dapsilodontidae
Acodus mutatus (Branson and Mehl 1933)
recombined as Dapsilodus mutatus
Conodonta - Panderodontida - Panderodontidae
Panderodus sp. Ethington 1959
Panderodus spp.
Conodonta - Ozarkodinida
Periodon grandis (Ethington 1959)
Conodonta - Protopanderodontida - Drepanoistodontidae
Paltodus indet. Pander 1856
Drepanoistodus sp. Lindstrom 1971
Drepanoistodus suberectus (Branson and Mehl 1933)
Lingulata - Lingulida - Pseudolingulidae
Lingula rectilateralis Emmons 1842
recombined as Pseudolingula rectilateralis
"major"
Lingulata - Lingulida - Obolidae
Lingula riciniformis Hall 1847
recombined as Glossina riciniformis
Lingulata - Lingulida - Trematidae
Trematis terminalis (Emmons 1842)
Craniata - Craniida - Craniidae
Petrocrania sp. Raymond 1910
Strophomenata - Strophomenida - Sowerbyellidae
Sowerbyella sericea (Sowerby 1839)
recombined as Sowerbyella (Sowerbyella) sericea
Strophomenata - Strophomenida - Plectambonitidae
Plectambonites sp. Pander 1830
Strophomenata - Strophomenida - Strophomenidae
Strophomena conradi
Strophomenata - Strophomenida - Rafinesquinidae
Rafinesquina praecursor
Rafinesquina prestonensis
Rafinesquina alternata (Conrad 1838)
Rhynchonellata - Orthida - Dalmanellidae
Paucicrura rogata (Sardeson 1892)
Rhynchonellata - Orthida - Platystrophiidae
Platystrophia sp. King 1850
Stenolaemata - Trepostomida - Amplexoporidae
Amplexopora minnesotensis
Stenolaemata - Trepostomida - Monticuliporidae
Prasopora similatrix
Stenolaemata - Cryptostomata - Rhinidictyidae
Stictopora blackensis
Pachydictya acuta
Stenolaemata - Cryptostomata - Escharoporidae
Graptodictya sp. Ulrich 1882
Stenolaemata - Trepostomata - Heterotrypidae
Dekayia sp. Milne-Edwards and Haime 1851
Stenolaemata - Trepostomata - Halloporidae
Hallopora sp. Bassler 1911
Stenolaemata - Trepostomata - Aisenvergiidae
Eridotrypa mutabilis Ulrich 1893
Newportopora typicalis
Cephalopoda - Endocerida - Endoceratidae
Endoceras proteiforme Hall 1847
Gastropoda - Murchisoniina - Loxonematidae
Hormotoma trentonensis Ulrich and Scofield 1897
recombined as Omospira trentonensis
Bivalvia - Solemyida - Ctenodontidae
Ctenodonta levata Raymond 1902
synonym of Ctenodonta peracuta
Bivalvia - Modiomorphida - Modiomorphidae
Endodesma sp. Ulrich 1894
synonym of Cymatonota
Trilobita - Phacopida - Calymenidae
Flexicalymene senaria (Conrad 1841)
recombined as Flexicalymene (Flexicalymene) senaria
Trilobita - Phacopida - Cheiruridae
Ceraurus pleurexanthemus Green 1832
Trilobita - Trinucleida - Trinucleidae
Cryptolithus tesselatus Green 1832
corrected as Cryptolithus tessellatus
Cryptolithus lorettensis Foerste 1924
synonym of Cryptolithus tessellatus
Trilobita - Asaphida - Asaphidae
Isotelus gigas (Dekay 1824)
recombined as Asaphus gigas
Scyphozoa - Conulariida - Conulariidae
Conularia trentonensis
Florideophyceae
Tetradium fibratum Safford 1856
recombined as Prismostylus fibratum
see common names

Geography
Country:United States State/province:New York
Coordinates: 43.0° North, 75.0° West (view map)
Paleocoordinates:27.8° South, 53.2° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4-5
Key time interval:Chatfieldian Graptolite zone: Climacograptus americanus
Age range of interval:453.70000 - 451.10000 m.y. ago
Stratigraphy
Geological group:Lower Trenton Formation:Sugar River Limestone
Stratigraphic resolution:formation
Stratigraphy comments: Trematis community, listed as Middle Caradoc/Shorehamian
Lithology and environment
Primary lithology: poorly lithified calcareous "shale"
Lithology description: Thin-bedded calcarenites interbedded with thin calcareous shales
Environment:deep subtidal shelf
Geology comments: No algae! Rarely current laminated
Taphonomy
Modes of preservation:body,trace
Degree of concentration:-single event
Size of fossils:macrofossils,mesofossils
Temporal resolution:snapshot
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:76090
Authorizer:P. Novack-Gottshall Enterer:P. Hearn
Modifier:P. Wagner Research group:marine invertebrate
Subset of collection #:335
Created:2007-11-13 11:13:51 Last modified:2018-03-24 00:20:15
Access level:the public Released:2007-11-13 11:13:51
Creative Commons license:CC BY
Reference information

Primary reference:
25788. R. Titus and B. Cameron. 1976. Fossil communities of the lower Trenton Group (Middle Ordovician) of central and northwestern New York State. Journal of Paleontology 50:1209-1225 [P. Novack-Gottshall/P. Hearn]