Also known as 6.4 kilometers southeast of Leslie. USGS Locs: 16257-PC, 25011-PC, 25012-PC, 25021-PC, 22671-PC, 26556-PC, 28537-PC
Where: Van Buren County, Arkansas (35.8° N, 92.5° W: paleocoordinates 12.4° S, 34.0° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Imo Formation, Serpukhovian (330.9 - 323.2 Ma)
• Elvirian (E2b-c); Appx 30 m above base of fm. JA: late Chesterian is Serpukhovian according to Mii et al. 1999 (GSA Bull 111:960-973)
• bed-level stratigraphic resolution
Environment/lithology: offshore; lithified, concretionary, black, gray, sandy grainstone and shale
Reposited in the OSU, USNM
Primary reference: R. D. Hoare, M. J., I.I.I. Heaney, and R. H. Mapes. 1989. Bivalves (Mollusca) from the Imo Formation (Mississippian, Chesterian) of North-Central Arkansas. Journal of Paleontology 63(5):582-603 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 5517: authorized by John Alroy, entered by Mike Sommers on 08.10.1999, edited by Pete Wagner and Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Gastropoda | |
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"Globozyga grandyensis" = Imogloba gandyensis3
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Globozyga mediocris n. sp.3
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Patellilabia rhombadella n. sp.3, Patellilabia sulcata n. sp.3, Retispira aff. ordinata3, Retispira yochelsoni n. sp.3, Bellerophon (Bellerophon) welshi3
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"Straparollus (Euomphalus) intermedius" = Amphiscapha intermedius3, Straparollus (Euomphalus) konobasis n. sp.3, Straparollus (Euomphalus) variabilis n. sp.3
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Naticopsis (Naticopsis) cf. clinovata3, "Naticopsis (Naticopsis) genevievensis" = Naticopsis genevievensis3
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"Platyceras (? Orthonychia) sp." = Orthonychia3
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"Naticopsis (? Marmolatella) sp." = Marmolatella3, Naticopsis (Marmolatella) imoensis n. sp.3, Naticopsis (Marmolatella) macgordoni n. sp.3
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"Worthenia (Yochelsonospira) tenuilineata" = Yochelsonospira tenuilineata3
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Trepospira (Angyomphalus) desultoria n. sp.3, "Glabrocingulum (Glabrocingulum) binodosum" = Glabrocingulum binodosum3, Glabrocingulum (Glabrocingulum) parvanodum3, Glabrocingulum (Glabrocingulum) parasolum n. sp.3, Glabrocingulum (Glabrocingulum) coronulum n. sp.3, "Glabrocingulum (Glabrocingulum) quadrigatum" = Glabrocingulum quadrigatum3
"Glabrocingulum (Glabrocingulum) binodosum" = Glabrocingulum binodosum3 Sadlick and Nielsen 1963 snail
"Glabrocingulum (Glabrocingulum) quadrigatum" = Glabrocingulum quadrigatum3 Sadlick and Nielsen 1963 snail | |
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Bivalvia | |
Paleyoldia bruta n. sp., Paleyoldia angustia n. sp.
Paleyoldia bruta n. sp. Hoare et al. 1989 clam
Paleyoldia angustia n. sp. Hoare et al. 1989 clam | |
Spathelopsis browni n. gen. n. sp., Palaeoneilo sera
Spathelopsis browni n. gen. n. sp. Hoare et al. 1989 clam
Palaeoneilo sera Girty 1910 clam | |
Phestia obtusa n. sp. Hoare et al. 1989 clam
Phestia wortheni n. sp. Hoare et al. 1989 clam
Phestia corrugata n. sp. Hoare et al. 1989 clam | |
"Nuculopsis okawensis" = Nuculavus okawensis, Economolopsis gordoni n. gen. n. sp., Nuculopsis "sp. B", Nuculopsis shumardana
"Nuculopsis okawensis" = Nuculavus okawensis Schenck 1939 nut clam
Economolopsis gordoni n. gen. n. sp. Hoare et al. 1989 nut clam
Nuculopsis "sp. B" Girty 1912 nut clam
Nuculopsis shumardana Hall 1856 nut clam | |
Schizodus chesterensis Meek and Worthen 1860 clam | |
Sedgwickia sp., "Prothyris (? Prothyris) sp." = Prothyris, Prothyris (Lophoprothyris) crista n. sp., Prothyris (Prothyris) cf. soleniformis, ? Sphenotus sp., Sphenotus pisinnus n. sp., Ectogrammysia crassatis n. gen. n. sp., Asketomorpha grandis n. gen. n. sp.
Sedgwickia sp. McCoy 1844 clam
"Prothyris (? Prothyris) sp." = Prothyris Meek 1871 clam
Prothyris (Lophoprothyris) crista n. sp. Hoare et al. 1989 clam
Prothyris (Prothyris) cf. soleniformis Elias 1957 clam
? Sphenotus sp. Hall 1884 clam
Sphenotus pisinnus n. sp. Hoare et al. 1989 clam
Ectogrammysia crassatis n. gen. n. sp. Hoare et al. 1989 clam
Asketomorpha grandis n. gen. n. sp. Hoare et al. 1989 clam | |
Sanguinolites ? simulans Girty 1910 clam
Wilkingia cf. inflata Easton 1962 clam | |
Permophorus sp. Chavan 1954 clam | |
Solenomorpha nitida Girty 1910 clam | |
Astartella cf. concentrica Conrad 1842 clam | |
Parallelodon cf. cancellosus Mather 1915 clam | |
Aviculopecten spp., Imoella obscura n. gen. n. sp.
Aviculopecten spp. M'Coy 1851 scallop
Imoella obscura n. gen. n. sp. Hoare et al. 1989 scallop | |
Euchondria sp. Meek 1874 scallop | |
Caneyella cf. wapanuckensis Girty 1909 oyster | |
Myalina (Myalina) cf. parallela Easton 1962 clam
? Naiadites sp. Dawson 1860 clam
Septimyalina cf. perattenuata Meek and Hayden 1858 clam | |
Rostroconchia | |
"Pseudoconocardium polymitarium n. sp." = Apotocardium polymitarium2, "Pseudoconocardium ? snideri" = Apotocardium snideri2
"Pseudoconocardium polymitarium n. sp." = Apotocardium polymitarium2 Hoare et al. 1982
"Pseudoconocardium ? snideri" = Apotocardium snideri2 Morgan 1924 | |
Cephalopoda | |
"Liroceras bicostatum n. sp." = Bistrialites bicostatus1
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Imonautilus meeki n. gen. n. sp.4, Aphelaeceras arkansanum4, Epistroboceras sp.4, Epistroboceras lesliense n. sp.4
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Michelinoceras wapanuckense1 Girty 1909 | |
Rayonnoceras protentum n. sp.1
Rayonnoceras protentum n. sp.1 Gordon 1964 | |
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"Cravenoceras miseri" = Stenoglaphyrites miseri1
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Dolorthoceras incisum1 Gordon 1964 | |
Reticycloceras peytonense n. sp.1, Reticycloceras croneisi1, ? Tripteroceroides sp.1, Euloxoceras angustius n. sp.1
Reticycloceras peytonense n. sp.1 Gordon 1964
Reticycloceras croneisi1 Gordon 1960
? Tripteroceroides sp.1 Miller and Furnish 1940
Euloxoceras angustius n. sp.1 Gordon 1964 | |
Anthozoa | |
"Tectamichelina mangeri n. gen. n. sp." = Tectamichelinia5
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