PBDB Collection

USNM 3651A-C. along south bluff hill. (Carboniferous of the United States)

Also known as Bluff east of Fayetteville sec. 9 T16N R29W. Includes A, B and C.

Where: Washington County, Arkansas (36.1° N, 94.0° W: paleocoordinates 15.5° S, 39.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lower Shale Member (Fayetteville Formation), Meramecian (343.0 - 335.5 Ma)

• Branson says Tumulites varians zone = Eumorphoceras milleri zone (Gordan 1969 vs. Gordan 1964), = early Elvirian or Arnsbergian, but Gordon et al. say Goniatites granosus zone. I'm going with the latter....

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shale

• black fissile shale that may contain medium- to light-gray, fetid septarian concretions as large as 2 ft (0.6 m) in diameter. (From: Mark R. Hudson, Kyle E. Murray, and Deborah Pezzutti, 2001. GEOLOGIC MAP OF THE JASPER QUADRANGLE, NEWTON AND BOONE COUNTIES, ARKANSAS. MISCELLANEOUS FIELD STUDIES MAP MF-2356; http://pubs.usgs.gov/mf/2001/mf-2356/mf-2356textonly.pdf)

•

•Typical shale is grayish black, rather silty, carbonaceous, normally fissile, locally papery, and weaters to a red or yellow clay.

Size class: macrofossils

Collected by R.D. Messler & G.H. Girty in 1907; reposited in the USNM

Primary reference: C. C. Branson. 1958. Two Mississippian species of Conocardium. Oklahoma Geology Notes 18(8/9):137-142 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67201: authorized by Pete Wagner, entered by Pete Wagner on 13.11.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Anthozoa
Stauriida - Hapsiphyllidae	Zaphrentites arkansanus³ Zaphrentites arkansanus³ Girty 1910 horn coral
Gastropoda
Murchisoniina - Gosseletinidae	Trepospira (? Angyomphalus) discus⁴ Trepospira (? Angyomphalus) discus⁴ Girty 1910 snail
Murchisoniina - Eotomariidae	Euconospira disjuncta⁴ Euconospira disjuncta⁴ Girty 1910 snail
Bellerophontida - Tropidodiscidae	"Sinuitina venata" = Sinuitina (Vorticina) venata⁴ "Sinuitina venata" = Sinuitina (Vorticina) venata⁴ Girty 1910 snail
Rostroconchia
Conocardiida - Bransoniidae	"Conocardium peculiare n. sp." = Apotocardium peculiare "Conocardium peculiare n. sp." = Apotocardium peculiare Girty 1910
Bivalvia
Nuculanida - Malletiidae	Palaeoneilo sera² Palaeoneilo sera² Girty 1910 clam
Nuculanida - Polidevciidae	"Phestia stevensiana" = Polidevcia stevensiana² "Phestia stevensiana" = Polidevcia stevensiana² Girty 1910 clam
Ostreida - Pterineidae	? Caneyella peculiaris² ? Caneyella peculiaris² Girty 1910 oyster
Pectinida - Aviculopectinidae	Aviculopecten inspeciosus², Aviculopecten squamula² Aviculopecten inspeciosus² Girty 1910 scallop Aviculopecten squamula² Girty 1910 scallop
Solenida - Solenomorphidae	Solenomorpha nitida² Solenomorpha nitida² Girty 1910 clam
Cardiidia - Grammysiidae	Sphenotus meslerianus², Sphenotus washingtonensis², Sphenotus dubius², ? Sphenotus branneri², ? Cardiomorpha inflata² Sphenotus meslerianus² Girty 1910 clam Sphenotus washingtonensis² Girty 1910 clam Sphenotus dubius² Girty 1910 clam ? Sphenotus branneri² Girty 1910 clam ? Cardiomorpha inflata² Girty 1910 clam
Pholadomyida - Edmondiidae	? Edmondia equilateralis² ? Edmondia equilateralis² Girty 1910 clam
Cardiida -	Cypricardella subalata² Cypricardella subalata² Girty 1910 clam
Trilobita
Proetida - Phillipsiidae	Paladin mucronatus¹ Paladin mucronatus¹ Girty 1910 trilobite

¹Gordon 1969; ²Pojeta 1969; ³Sando 1969; ⁴Yochelson 1969