Braggs-Ripley (Cretaceous of the United States)

Where: Lowndes County, Alabama (32.1° N, 86.8° W: paleocoordinates 35.3° N, 64.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ripley Formation (Selma Group), Maastrichtian (72.1 - 66.0 Ma)

• None given.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified sandstone

• None given.

Size class: mesofossils

Collection methods: bulk, surface (in situ),

• Some areas were sampled on the outcrop surface, others were excavated with pick and shovel and some more specimens came from screenwashing bulk sediments.

Primary reference: J. R. Bryan and D. S. Jones. 1989. Fabric of the Cretaceous-Tertiary Marine Macrofaunal Transition at Braggs, Alabama. Palaeogeography, Palaeoclimatology, Palaeoecology 69:279-301 [A. Miller/J. Sessa]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83239: authorized by Arnold Miller, entered by Jocelyn Sessa on 12.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• Faunal lists were supplemented by a US Geological Survey Open File Report (Sohl and Koch 1983). Most of the species listed from Ripley, Lower and Middle Prairie Bluff were taken from the Open File Report.
Show authors, comments, and common names
unclassified
  -
Flemingostea subspatulata, ? Pseudualimea reticulata
Polychaeta
 Serpulimorpha -
Hamulus onyx
Hamulus onyx Morton 1834
 Sabellida - Serpulidae
Serpula cretacea
Cephalopoda
 Ammonitida - Baculitidae
Baculites sp.
Baculites sp. Lamarck 1799 ammonite
Gastropoda
 Heterostropha - Acteonidae
Acteon sp.
Acteon sp. Montfort 1810 snail
 Heterostropha - Ringiculidae
Ringicula ? clanki
Ringicula ? clanki snail
Ringicula Ringiculini ? clanki
 Opisthobranchia - Cylichnidae
Cylichna diversilirata
Cylichna diversilirata Sohl 1964 snail
 Cerithioidea - Turritellidae
Turritella ? trilira, Turritella tippana
Turritella ? trilira Conrad 1860 turret shell
Turritella tippana Conrad 1858 turret shell
 Sorbeoconcha - Naticidae
Gyrodes supraplicatus, Euspira rectilabrum
Gyrodes supraplicatus Conrad 1858 moon snail
Euspira rectilabrum Conrad 1858 moon snail
 Neogastropoda - Fasciolariidae
? Drilluta sp.
? Drilluta sp. Wade 1916 snail
 Neogastropoda - Cancellariidae
Caveola sp.
Caveola sp. Stephenson 1941 snail
 Neogastropoda - Paladmetidae
Paladmete gardnerae
 Neogastropoda - Volutidae
cf. Liopeplum rugosum
cf. Liopeplum rugosum Stephenson 1955 volute
 Neogastropoda - Muricidae
cf. Sargana stantoni
cf. Sargana stantoni Weller 1907 murex snail
 Sorbeoconcha - Aporrhaidae
Anchura abrupta
Bivalvia
 Mytilida - Crenellidae
Crenella senica
 Mytilida - Mytilidae
Botula carolinensis
 Pectinida - Pectinoidae
Chlamys mississippiensis
Chlamys mississippiensis scallop
Chlamys Radiopectin mississippiensis
 Pectinida - Anomiidae
Anomia argentaria
Anomia argentaria Morton 1833 jingle
Anomia Anomia argenteria
 Pectinida - Plicatulidae
Plicatula sp.
Plicatula sp. Lamarck 1801 scallop
 Ostreida - Malleidae
cf. Isognomon carolinensis
 Ostreida - Flemingostreidae
Cubitostrea tecticosta
Cubitostrea tecticosta Gabb 1860 oyster
 Ostreida - Gryphaeidae
"Exogyra costata" = Exogyra (Exogyra) costata, Gryphaeostrea vomer
"Exogyra costata" = Exogyra (Exogyra) costata Say 1820 oyster
Gryphaeostrea vomer Morton 1828 oyster
 Arcida - Parallelodontidae
Nemodon sp.
Nemodon sp. Conrad 1869 clam
 Arcida - Cucullaeidae
Cucullaea littlei
Cucullaea littlei Gabb 1877 clam
 Arcida - Arcidae
Barbatia sp.
Barbatia sp. Gray 1842 clam
 Arcida - Glycymerididae
Glycymeris sp.
Glycymeris sp. Da Costa 1778 clam
 Cardiida - Cardiidae
Granocardium kummeli, Protocardia spillmani, Trachycardium eufaulense
Granocardium kummeli cockle
Granocardium Granocardium kummeli
Protocardia spillmani cockle
Protocardia Pachycardium spillmani
 Cardiida - Tellinidae
Aenona eufaulensis, "Linearia sp." = Linearis, cf. Tellina marcosensis
Aenona eufaulensis Conrad 1860 tellin clam
"Linearia sp." = Linearis Conrad 1860 tellin clam
New species
 Cardiida - Veneridae
Cyclorisma parva, Cyprimeria depressa
Cyclorisma parva venus clam
 Cardiida - Mactridae
Cymbophora cancellosa
 Cardiida - Arcticidae
Etea carolinensis, Veniella conradi, ? Tenea sp.
Etea carolinensis Conrad 1875 clam
Veniella conradi Morton 1833 clam
? Tenea sp. Conrad 1870 clam
 Pholadida - Corbulidae
Caestocorbula suffalciata
Caestocorbula suffalciata clam
Caestocorbula Parmicurbula suffalciata
 Poromyida - Poromyidae
Liopistha protexta
Liopistha protexta Conrad 1853 clam
 Lucinida - Lucinidae
Lucina parvilineata, ? Lucina sp.
Lucina parvilineata Shumard 1861 clam
? Lucina sp. Bruguière 1797 clam
 Carditida - Crassatellidae
Scambula perplana
Scambula perplana Conrad 1869 clam
 Carditida - Condylocardiidae
"Uddenia texana" = Cuna texana
"Uddenia texana" = Cuna texana Stephenson 1941 clam
 Carditida - Astartidae
? Astarte culebrensis
 Trigoniida - Megatrigonioidae
Scabrotrigonia eufaulensis
Anthozoa
 Scleractinia - Micrabaciidae
Micrabacia sp.
Micrabacia sp. Milne-Edwards 1849 stony coral