Whitfieldella-Large Leptaena Community of the Irondequoit Limestone (Silurian of the United States)

Where: New York (43.2° N, 77.6° W: paleocoordinates 27.4° S, 43.6° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Irondequoit Limestone Formation (Clinton Group), Wenlock (433.4 - 427.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: offshore ramp; lithified packstone

• 2003:04:06: SEP sequence call based on assumption of colelction from Rockway Member (lower Irondequoit). If collection from upper Model City Member, then sequence should be TST (see Brett et al. (1998). Silurian Cycles. Bulletin NY state museum 491, p. 108).

•

•NOTE: environmental call here of "reef, buildup, or biohermal" may be stretching it a bit. Probably should be offshore carbonate ramp so I have changed it.

• crinoidal packstone and grainstone with small micritic fistuliporoid bioherms

Primary reference: C. E. Brett. 1999. Wenlockian fossil communities in New York State and adjacent areas: Paleontology and Paleoecology. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities: A Case Study from the Silurian and Lower Devonian 592-637 [M. Foote/K. Koverman/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13053: authorized by Michael Foote, entered by Kimberly Koverman on 17.01.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Spatipora maculata
Anthozoa
 Favositida - Favositidae
Favosites pyriformis
Favosites pyriformis tabulate coral
 Stauriida - Streptelasmatidae
Enterolasma caliculum
Scyphozoa
 Conulariida - Conulariidae
Conularia niagarensis
Crinoidea
 Sagenocrinida - Lecanocrinidae
Lecanocrinus macropetalus
 Flexibilia -
Icthyocrinus laevis
 Diplobathrida - Dimerocrinitidae
Dimerocrinites lilliformis
 Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites sp.
Eucalyptocrinites sp. Goldfuss 1831 Sea lily
Rhombifera
 Hemicosmitoida - Caryocrinitidae
Caryocrinites ornatus
Blastoidea
 Coronata - Stephanocrinidae
Cupulocorona gemmiformis, Stephanocrinus angulatus
Cupulocorona gemmiformis Hall 1872 blastoid
Stephanocrinus angulatus Conrad 1842 blastoid
Gastropoda
 Euomphalina - Platyceratidae
Platyceras spp., "Naticonema niagarensis" = Platyostoma niagarensis
Platyceras spp. Conrad 1840 snail
"Naticonema niagarensis" = Platyostoma niagarensis Hall 1852 snail
Bivalvia
 Cardiidia - Grammysiidae
Cuneamya alveata
 Myalinida - Ambonychiidae
Amphicoelia ordiculoides
 Ostreida - Pterineidae
Cornellites emaceratus, Leptodesma rhomboidea, "Leiopteria subplana" = Leptodesma (Leiopteria)
"Leiopteria subplana" = Leptodesma (Leiopteria) oyster
Cephalopoda
 Orthocerida - Dawsonoceratidae
Dawsonoceras annulatum
 Orthocerida - Orthoceratidae
? Orthoceras abruptum
Strophomenata
 Strophomenida - Strophodontidae
"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda, "Stropheodonta deflecta" = Strophomena (Strophodonta)
"Protomegastrophia profunda" = Brachyprion (Protomegastrophia) profunda Hall 1852
"Stropheodonta deflecta" = Strophomena (Strophodonta)
 Strophomenida - Rafinesquinidae
Leptaena ? rhomboidalis
Leptaena ? rhomboidalis Wahlenberg 1818
Leptaena 'rhomboidalis'
 Orthotetida - Chilidiopsidae
"Coolinia subplana" = Fardenia (Coolinia), "Coolinia tnuis" = Fardenia (Coolinia)
"Coolinia subplana" = Fardenia (Coolinia)
"Coolinia tnuis" = Fardenia (Coolinia)
Chileata
 Dictyonellida - Eichwaldiidae
"Dictyonella corallifera" = Eodictyonella
"Dictyonella corallifera" = Eodictyonella
Rhynchonellata
 Pentamerida - Clorindidae
Clorinda fornicata
 Orthida - Orthidae
? Orthis tenuidens
? Orthis tenuidens
'Orthis'? tenuidens
 Orthida - Dalmanellidae
Resserella elegantula
 Spiriferida - Spiriferidae
? Spirifer repertus
? Spirifer repertus
'Spirifer' repertus
 Spiriferida - Cyrtiidae
Striispirifer niagarensis, Macropleura eudora, Cyrtia meta
 Spiriferida - Reticulariidae
Reticularia bicastata
 Spiriferida - Cyrtinopsidae
Boucotinskia sulcatus
 Athyridida - Rhynchospirinidae
Trematospira camura
 Athyridida - Meristellidae
Whitfieldella cylindrica, Whitfieldella intermedia, ? Whitfieldella naviformis, Whitfieldella nitida
 Athyridida - Nucleospiridae
Nucleospira pisiformis
 Atrypida - Atrypidae
Plectatrypa nodostriata, Atrypa gibbosa, Atrypa ? reticularis
Atrypa ? reticularis Linnaeus 1758
Atrypa 'reticularis'
 Atrypida - Atrypinidae
Atrypina diparilis
 Protorthida - Skenidiidae
Skenidioides pyramidalis
Skenidioides pyramidalis Twenhofel 1928
 Rhynchonellida - Rhynchotrematidae
Stegerhynchus neglectum
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia obtusiplicata
Lingulata
 Lingulida - Discinidae
Schizotreta tenuilamellata
Stenolaemata
 Cystoporata - Fistuliporidae
Chilotrypa ostiolata
  - Phylloporinidae
"Drymotrypa diffusa" = Pseudohornera, Phylloporina asperatostriata
"Drymotrypa diffusa" = Pseudohornera
 Cryptostomata - Rhinoporidae
Stictotrypa punctipora, Rhinopora verrucus
 Cryptostomata - Semicosciniidae
Semicoscinium tenuiceps
 Cryptostomata - Fenestellidae
Fenestella elegans
 Trepostomida - Monticuliporidae
Mesotrypa nummiformis
 Trepostomata - Aisenvergiidae
Eridotrypa striata
Trilobita
 Proetida - Proetidae
Proetidae indet.
Proetidae indet. Salter 1864 trilobite
 Phacopida - Dalmanitidae
Dalmanites limulurus
 Phacopida - Calymenidae
Calymene sp., Liocalymene clintoni
Calymene sp. Brongniart 1822 trilobite
 Phacopida - Homalonotidae
Trimerus delphinocephalus
Ostracoda
 Beyrichiacea - Zygobolbidae
Plethobolbina typicalis, Mastigobolbina punctata, Mastigobolbina trilobata, Mastigobolbina typus
 Platycopida - Kloedenellidae
Dizygopleura intermedia
 Palaeocopida - Beyrichiidae
Dibolbina sp. n. sp.
Dibolbina sp. n. sp. Ulrich and Bassler 1923 ostracod