Eohalysiocrinus stigmatus-Sievertsia Assoc., Vail Stone Quarry: Wenlock, Indiana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Saccocrinus christyi
Diabolorhynchia acinus
Anthozoa
Anthozoa indet. Ehrenberg 1834
"solitary corals"
Anthozoa - Favositida - Favositidae
Favosites spinigerus
Favosites forbesi
Favosites informal sp. 2 Lamarck 1816
Anthozoa - Auloporida - Auloporidae
Auloporella sp. Grubbs 1939
Demospongiae - Astylospongiidae
Astylospongia praemorsa (Goldfuss 1826)
Crinoidea
Passalocrinus sp.
Crinoidea - Cyathocrinida - Codiacrinidae
Amphipsalidocrinus sp. Weller 1930
Crinoidea - Cyathocrinida - Thalamocrinidae
Thalamocrinus sp. Miller and Gurley 1895
Crinoidea - Cyathocrinida - Cyathocrinitidae
Cyathocrinites (Rugosocyathocrinites) sanduskyensis Frest 1977
Crinoidea - Botryocrinidae
Botryocrinus polyxo
Crinoidea - Sagenocrinida - Lecanocrinidae
Lecanocrinus pusillus
Crinoidea
Icthyocrinus corbis
Disparida indet. Moore and Laudon 1943
"disparid gen. nov. Sevastopulo and Lane"
Crinoidea - Synbathocrinidae
"Phimocrinus" sp. Schultze 1867
Crinoidea - Calceocrinida - Calceocrinidae
Calceocrinidae indet. Meek and Worthen 1869
"new calceocrinid"
Eohalysiocrinus stigmatus
Crinoidea - Homocrinida - Homocrinidae
Homocrinus sp. Hall 1852
Crinoidea - Diplobathrida - Rhodocrinitidae
Lyriocrinus melissa
Crinoidea - Diplobathrida - Dimerocrinitidae
Cyphocrinus sp. Miller 1892
Dimerocrinites occidentalis
Dimerocrinites inornatus
Dimerocrinites carleyi
Crinoidea - Monobathrida - Patelliocrinidae
Macrostylocrinus fasciatus
Macrostylocrinus striatus
Crinoidea - Monobathrida
Lobomelocrinus obconicus
Crinoidea - Monobathrida - Eucalyptocrinitidae
Eucalyptocrinites crassus
Eucalyptocrinites caelatus
Rhombifera - Callocystitidae
Callocystites brevis
Blastoidea - Fissiculata - Phaenoschismatidae
Decaschisma pulchellum (Miller and Dyer 1878)
recombined as Decaschisma pulchellus
Asteroidea
Asteroidea indet. de Blainville 1830
"starfish plates"
Ophiuroidea
Ophiuroidea indet. Gray 1840
Cyclocystoidea - Cyclocystoididae
Sievertsia sp. Smith and Paul 1982
Polytryphocycloides sp. Smith and Paul 1982
Gastropoda
Gastropoda informal indet. 1 Cuvier 1795
Gastropoda informal indet. 2 Cuvier 1795
Gastropoda informal indet. 3 Cuvier 1795
Gastropoda - Murchisoniina - Loxonematidae
Loxonema sp. Phillips 1841
Gastropoda - Murchisoniina - Eotomariidae
Eotomariidae indet. Wenz 1938
Gastropoda - Bellerophontida
Bellerophontacea indet. M'Coy 1851
corrected as Bellerophontoidea
Gastropoda - Bellerophontida - Bellerophontidae
Liljevallospira sp. Knight 1945
"Bellerophon" tuber Hall 1879
recombined as Sphaerocyclus tuber
Gastropoda - Naticopsidae
Naticonema plebium (Perner 1903)
original and current combination Naticopsis plebeia
Gastropoda - Euomphalina - Platyceratidae
Strophostylus cyclostomus Hall 1864
Naticonema niagarensis (Hall 1852)
original and current combination Platyostoma niagarensis
Bivalvia - Nuculanida - Nuculanidae
Nuculanidae indet. Adams and Adams 1858
Bivalvia - Modiomorphida - Modiomorphidae
Modiolopsis sp. Hall 1847
Paragastropoda - Mimospirida - Clisospiridae
Clisospiridae indet. Miller 1889
Tergomya - Cyrtonellida - Cyrtolitidae
Cyrtolites sinuosus Hall 1879
Strophomenata - Strophomenida - Leptestiidae
Leangella sp. Opik 1933
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena rhomboidalis (Wahlenberg 1818)
recombined as Leptaena (Leptaena) rhomboidalis
Strophomenata - Orthotetida - Triplesiidae
Triplesia putillus
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia subplana
spelled with current rank as Fardenia (Coolinia)
Chileata - Dictyonellida - Eichwaldiidae
Dictyonella reticulata Hall 1868
Rhynchonellata - Pentamerida - Parastrophinidae
Anastrophia (Savageina) internascens
Rhynchonellata - Orthida - Hesperorthidae
? Dolerorthis sp. Schuchert and Cooper 1931
Rhynchonellata - Orthida - Dalmanellidae
Isorthis sp. Kozlowski 1929
Resserella "elegantula" (Dalman 1828)
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina "hybrida" (Sowerby 1839)
Rhynchonellata - Spiriferida - Cyrtiidae
Hedeina eudora
Rhynchonellata - Spiriferida - Delthyrididae
Howellella "crispa" (Hisinger 1827)
Rhynchonellata - Athyridida - Meristidae
Merista sp. Suess 1851
Rhynchonellata - Athyridida - Meristellidae
Whitfieldella nitida (Hall 1843)
Meristina rectirostra
Meristina maria (Hall 1863)
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira pisiformis
Rhynchonellata - Atrypida - Atrypidae
Atrypa "reticularis" (Linnaeus 1758)
original and current combination Anomia reticularis
Rhynchonellata - Atrypida - Atrypinidae
Atrypina disparilis (Hall 1852)
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Stegerhynchus whitii
original and current combination Rhynchonella (Stegerhynchus)
Stegerhynchus indianensis
original and current combination Rhynchonella (Stegerhynchus)
Stegerhynchus neglectus
original and current combination Rhynchonella (Stegerhynchus)
Stegerhynchus spp.
original and current combination Rhynchonella (Stegerhynchus)
juveniles
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Rhynchotreta americana (Hall 1879)
Rhynchonellata - Rhynchonellida - Hebetoechiidae
Sphaerirhynchia stricklandi
unclassified
Bryozoa indet. Ehrenberg 1831
Stenolaemata - Trepostomida - Monticuliporidae
Prasopora sp. Nicholson and Etheridge 1877
Polychaeta - Phyllodocida
Machaeridia indet.
Polychaeta - Sabellida - Serpulidae
Spirorbis spp.
Tentaculita - Cornulitida - Cornulitidae
Cornulites proprius
Trilobita - Lichida - Lichidae
Arctinurus sp. Castelnau 1843
Trilobita - Corynexochida - Styginidae
Styginidae indet. Vogdes 1890
"bumastid"
Trilobita - Phacopida - Calymenidae
Calymene niagarensis Hall 1843
Ostracoda
Ostracoda indet. Latreille 1802
see common names

Geography
Country:United States State/province:Indiana
Coordinates: 39.5° North, 85.5° West (view map)
Paleocoordinates:27.6° South, 51.5° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Silurian Epoch:Wenlock
10 m.y. bin:Silurian 2
Key time interval:Wenlock
Age range of interval:433.40000 - 427.40000 m.y. ago
Stratigraphy
Formation:Laurel
Stratigraphic resolution:formation
Stratigraphy comments: "Formational assignment of the strat with this community is somewhat problematic. At most outcrops, the Laurel-Waldron contact is abrupt and has low relief, even though in many places it is a hardground. At Sandusky and elsewhere it is more gradiational. The unit was termed the 'transitional beds' by Frest (1977) and assigned, somewhat arbitrarily, to the Laurel because of the mixed fauna and predominantly carbonate lithology."
Lithology and environment
Primary lithology:shelly/skeletal grainstone
Secondary lithology:shelly/skeletal packstone
Includes fossils?Y
Includes fossils?Y
Lithology description: "Abundantly fossiliferous. The most common lithology is whole fossils or large-clast grainstone, but packstone textures are almost equally common. Individual beds generally do not exceed 3 cm...Many are strongly graded, with fines generally on the upper surfaces. Some debris layers have fines winnowed out although they are otherwise poorly sorted. Large-debris lenses are common, but these rarely persist laterally for more than 2 m...."
Environment:deep subtidal indet. Tectonic setting:cratonic basin
Geology comments: "...most intact cups are those of resistant taxa...holdfasts and root systems common...This environment was evidently fairly frequently subject to wave winnowing, and hence likely occurred above mean storm wave base. Excellent and unbroken preservation of many echinoderm calices and brachiopods preculdes the presence of regular currents. The moderate diversity of both echinoderms and brachiopods is suggestive of BA 3. A. Boucot...states that the brachiopod assemblage most strongly suggests outer BA 3; this is consistent with the sizable blastozoan representation as well."
SEP environmental call based on given information and knowledge of regional geology
Taphonomy
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Collection method comments: Taxa listed with abundances in table 45.35. Three taxa, mentioned in text but not listed in table, have been added.
Metadata
Database number:26778
Authorizer:M. Foote Enterer:M. Foote
Modifier:S. Peters Research group:marine invertebrate
Created:2002-10-31 08:42:29 Last modified:2003-05-04 12:20:57
Access level:the public Released:2002-10-31 08:42:29
Creative Commons license:CC BY
Reference information

Primary reference:
4379. 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]