Beech Grove (Ordovician of the United States)

Also known as Beechgrove

Where: Maury County, Tennessee (35.6° N, 87.0° W: paleocoordinates 27.7° S, 66.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Belodina compressa conodont zone, Carters Limestone Formation (Stones River Group), Rocklandian (457.3 - 449.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; fine-grained, brown, yellow limestone

• "fine-grained, yellowish-brown limestone" (Miller et al., 1966, Geologic Map of Tennessee, http://ngmdb.usgs.gov/ngm-bin/ILView.pl?sid=q250_68533_tn_1.sid&vtype=b&sfact=1.5))

Size class: macrofossils

Preservation: original silica

Reposited in the USNM

• RHF = collection of Rousseau H. Flower, transferred to the Smithsonian Institution/U.S. National Museum (see Wolberg, 1990, J. Paleont. 64(3, 5, 6))

Primary reference: R. C. Frey. 1995. Middle and Upper Ordovician nautiloid cephalopods of the Cincinnati Arch region of Kentucky, Indiana, and Ohio. U.S. Geological Survey Professional Paper 1066P:1-126 [S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87734: authorized by Björn Kröger, entered by Torsten Liebrecht on 23.03.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Orthocerida - Sactorthoceratidae
Cartersoceras shideleri n. gen. n. sp. Flower 1964
USNM 302549 (holotype, formerly RHF 390), 302550 (paratype, formerly RHF 391)
Cartersoceras cf. shideleri1 Flower 1964
RHF 392
Gastropoda
 Murchisoniina - Trochonematidae
"? Lophospira notablis n. sp." = Trochonemella notablis2
"? Lophospira notablis n. sp." = Trochonemella notablis2 Ulrich and Scofield 1897 snail
Just given as Maury County
 Murchisoniina - Eotomariidae
Eotomaria dryope2 Billings 1865 snail
Just given as Maury County
Liospira decipens2 Ulrich and Scofield 1897 snail
Just given as Maury County
 Murchisoniina - Hormotomidae
Hormotoma gracilis2 Hall 1847 snail
Hormotoma gracilis angustatus; Just given as Maury County