PBDB Collection

Scyphocrinites-Edriocrinus Assoc., Linden Group (Devonian of the United States)

Where: Tennessee (35.9° N, 88.1° W: paleocoordinates 36.1° S, 49.0° W)

• coordinate stated in text

• basin-level geographic resolution

When: Linden Group, Lochkovian (419.2 - 410.8 Ma)

• "Lower Devonian (Gedinnian);Birdsong Shale, Upper Rockhouse Formation"

Environment/lithology: marine; shelly/skeletal wackestone and glauconitic, argillaceous packstone

• "[Preservation variable]; crowns rarely found; root systems common; bryzoans locally form thickets...Fauna resembles that of Haragan Edriocrinus Pygmaeocrinus Assoc. [PBDB coll. 26826]...larger coral fauna...some features of depositional environment suggest slightly more shoreward benthic position, i.e. BA 4. Enough differences can be noted from outcrop to outcrop within the Birdsong that it is likely that the unit will be divided into several communities with further study."

• "Often abundantly fossiliferous. The most common lithology is muddy calcareous wackestone in thin beds...Subordinate is calcareous, slightly glauconitic, thin-bedded muddy packstone..."

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 26852: authorized by Michael Foote, entered by Michael Foote on 05.11.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Stereocrinus sp. Stereocrinus sp.
Anthozoa
Favositida - Micheliniidae	Pleurodictyum sp. Pleurodictyum sp. Goldfuss 1829 tabulate coral
Favositida - Favositidae	Favosites sp. Favosites sp. Lamarck 1816 tabulate coral
Rugosa -	Rugosa indet. Rugosa indet. horn coral

Rhombifera - Echinoencrinitidae	Tyrridiocystis sp. Tyrridiocystis sp. Broadhead and Strimple 1978
Crinoidea
-	Crinoidea indet. Crinoidea indet. Miller 1821 Sea lily
Disparida - Synbathocrinidae	Theloreus sp. Theloreus sp. Moore 1962 Sea lily
Flexibilia - Edriocrinidae	Edriocrinus spp. Edriocrinus spp. Hall 1858 Sea lily
Monobathrida - Scyphocrinitidae	Scyphocrinites sp. Scyphocrinites sp. Zenker 1833 Sea lily

Lophophorata -	Tentaculitida indet. Tentaculitida indet. Ljaschenko 1955
Bryozoa
-	Bryozoa indet. Bryozoa indet. Ehrenberg 1831
Rhynchonellata
Spiriferida - Delthyrididae	Delthyris sp. Delthyris sp. Dalman 1828
Spiriferida - Cyrtiidae	Macropleura sp. Macropleura sp. Boucot 1963
Athyridida - Rhynchospirinidae	Rhynchospirina sp., Trematospira sp. Rhynchospirina sp. Schuchert and LeVene 1929 Trematospira sp.
Athyridida - Meristellidae	Meristella sp. Meristella sp.
Atrypida - Atrypinidae	Atrypina sp. Atrypina sp. Hall and Clarke 1893
Atrypida - Atrypidae	Atrypa sp. Atrypa sp. Dalman 1828
Orthida - Dicoelosiidae	Dicoelosia sp. Dicoelosia sp. King 1850
Orthida - Rhipidomellidae	Dalejina sp. Dalejina sp. Havlicek 1953
Orthida - Orthidae	Orthostrophia sp. Orthostrophia sp.
Protorthida - Skenidiidae	Skenidium sp. Skenidium sp.
Spiriferinida - Cyrtinidae	Cyrtina sp. Cyrtina sp. Davidson 1858
Pentamerida - Gypidulidae	Gypidula sp. Gypidula sp. Hall 1867
Pentamerida - Parastrophinidae	Anastrophia sp. Anastrophia sp. Hall 1867
Rhynchonellida - Camarotoechiidae	Camarotoechia sp. Camarotoechia sp. Hall and Clarke 1893
Rhynchonellida - Hebetoechiidae	Sphaerirhynchia sp. Sphaerirhynchia sp. Cooper and Muir-Wood 1951
Strophomenata
Strophomenida - Leptostrophiidae	Brachyprion sp., Leptostrophia sp. Brachyprion sp. Shaler 1865 Leptostrophia sp. Hall and Clarke 1892
Strophomenida - Rafinesquinidae	Leptaena sp. Leptaena sp. Dalman 1828
Polychaeta
Sabellida - Serpulidae	Spirorbis sp. Spirorbis sp. Daudin 1800
Tentaculita
Cornulitida - Cornulitidae	Cornulitidae indet. Cornulitidae indet. Fischer 1962
Bivalvia
-	"Pelecypoda indet." = Bivalvia "Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Cephalopoda
Nautiloidea -	Nautiloidea indet. Nautiloidea indet. Agassiz 1847 nautiloid
Gastropoda
Euomphalina - Platyceratidae	Platyceras sp. Platyceras sp. Conrad 1840 snail
Deuteropoda
-	Ostracoda indet. Ostracoda indet. Latreille 1802 ostracod
Trilobita
Phacopida - Phacopidae	Phacopidae indet. Phacopidae indet. Hawle and Corda 1847 trilobite
Phacopida - Dalmanitidae	Dalmanitidae indet. Dalmanitidae indet. Vogdes 1890 trilobite