Caryocrinites ornatus-Eucalyptocrinites Association of the Gasport (Silurian of the United States)

Where: New York (43.2° N, 78.6° W)

• Paleocoordinates: 27.8° S, 81.1° W (Wright 2013)

• coordinate based on political unit

• basin-level geographic resolution

When: Gasport Limstone Formation (Clinton Group), Wenlock (433.4 - 427.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, graded, dolomitic packstone

• The dominant lithology is dolomitic pelmatozoan pack- and grainstones; fossils are disarticulated and commonly fragmented, but (rarely) complete tecae and evencrowns of pelmatozoans occur, particularly on the flanks of small bioherms. Lamination, minor graded bedding, and cross stratification are common, and in the Gasport Limestone, apparent bipolar (herringbone) cross lamination is well developed in some outcrops.

Primary reference: T. J. Frest, C. E. Brett, and B. J. Witzke. 1999. Caradocian-Gedinnian echinoderm associations of Central and Eastern North America. Paleocommunities--a case study from the Silurian and Lower Devonian 638-783 [M. Foote/K. Koverman/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13338: authorized by Michael Foote, entered by Kimberly Koverman on 28.02.2002

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Asaphocinus sp., Gomphocysstites cf. tenax, Camarata indet.
Camarata indet.
indet. camarate 1, 2, and 3
 Sphaeronitida - Holocystitidae
? Holocystites sp.
Rhombifera
 Hemicosmitoida - Caryocrinitidae
Caryocrinites ornatus
 Rhombifera - Cheirocrinidae
"Calceocrinus chrysalis" = Cheirocrinus chrysalis
"Calceocrinus chrysalis" = Cheirocrinus chrysalis Hall 1860
[entered as Caleocrinus chrysalis]
 Rhombifera - Callocystitidae
Callocystites jewetti
Blastoidea
 Coronata - Stephanocrinidae
Stephanocrinus angulatus
Stephanocrinus angulatus Conrad 1842 blastoid
Crinoidea
 Monobathrida - Patelliocrinidae
Macrostylocrinus cf. granulosus, Macrostylocrinus sp.
 Monobathrida - Periechocrinidae
Periechocrinus cf. speciosus
 Monobathrida - Eucalyptocrinitidae
Calliocrinus sp., Eucalyptocrinites caelatus, Eucalyptocrinites sp.
Calliocrinus sp. Orbigny 1850 Sea lily
Eucalyptocrinites sp. Goldfuss 1831 Sea lily
 Diplobathrida - Gazacrinidae
Gazacrinus immaturus
 Diplobathrida - Dimerocrinitidae
Dimerocrinites lockportensis
 Flexibilia -
Icthyocrinus conoideus, Icthyocrinus laevis, Icthyocrinus subangulatus
 Sagenocrinida - Lecanocrinidae
Lecanocrinus cf. pusillus
 Cladida - Botryocrinidae
? Gothocrinus multibrachiatus
 Calceocrinida - Calceocrinidae
Catatonocrinus halli, ? Eohalysiocrinus typus
 Pisocrinida - Pisocrinidae
Pisocrinus sp.
Pisocrinus sp. de Koninck 1858 Sea lily