Reklaw-locality 4. Bluff on Ridge Creek (Eocene of the United States)

Also known as = Lyth, 1949, locality 7

Where: Milam County, Texas (30.8° N, 96.7° W: paleocoordinates 34.1° N, 82.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: NP 13 nannofossil zone, Marquez Shale Member (Reklaw Formation), Ypresian (56.0 - 47.8 Ma)

• Layer of up to 100' of brown clay with streaks of sand, green-sand, clay and clay-ironstone concretions.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; unlithified, concretionary, brown, green, sandy claystone

• Brown clay with streaks of sand, green sand, clay and clay-ironstone concretions.

Size class: mesofossils

Collection methods: bulk, surface (in situ),

Primary reference: C. L. Garvie. 1996. The Molluscan Macrofauna of the Reklaw Formation, Marquez Member (Eocene: Lower Claibornian), in Texas. Bulletins of American Paleontology 111(352):1-177 [L. Ivany/E. Kowalski]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 178054: authorized by Pete Wagner, entered by Pete Wagner on 15.04.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

• Although abundance data was not published in the monograph, it was provided by C. Garvie to J. Sessa.
Show authors, comments, and common names
Gastropoda
 Cerithioidea - Cerithiidae
Bittium tresquatrum n. sp.
Bittium tresquatrum n. sp. cerith snail
 Epitonioidea - Epitoniidae
"Rugatiscala cooperi n. sp." = Opalia (Rugatiscala)
"Rugatiscala cooperi n. sp." = Opalia (Rugatiscala) wentletrap
 Sorbeoconcha - Cerithiopsidae
? Cerithiopsis (Cerithiopsina) sp.
 Sorbeoconcha - Vermetidae
Serpulorbis multiclavus n. sp.
Serpulorbis multiclavus n. sp. worm shell
 Neogastropoda -
Pseudometula gradus n. sp.
Pseudometula gradus n. sp. snail
 Neogastropoda - Muricidae
Pterynotus (Pterynotus) cf. stenzeli
Pterynotus (Pterynotus) cf. stenzeli Vokes 1970 mustached bat
 Neogastropoda - Buccinidae
Euryochetus punctatum n. sp., Laevibuccinum lineatum, Antillophos multilineatum, Metula elongatoides n. sp.
Euryochetus punctatum n. sp. true whelk
Metula elongatoides n. sp. true whelk
 Neogastropoda - Fasciolariidae
Fusinus claibornica n. sp., Latirus (Polygona) traceyi n. sp.
Fusinus claibornica n. sp. snail
 Neogastropoda - Cancellariidae
Admetula irregularis n. sp.
 Neogastropoda - Raphitomidae
Raphitoma (Mircula) bastropensis n. sp.
 Neogastropoda - Turridae
"Coronia cf. margaritosa" = Gemmula (Coronia), ? Hesperiturris monilis n. sp.
"Coronia cf. margaritosa" = Gemmula (Coronia) turrid
 Neogastropoda - Clathurellidae
Domenginella ridgei n. sp., Varicobela filum n. sp.
Domenginella ridgei n. sp. snail
Varicobela filum n. sp. snail
 Neogastropoda - Borsoniidae
Microdrillia sp., Bathytoma cf. nonplicata
Microdrillia sp. Casey 1903 snail
 Neogastropoda - Cochlespiridae
Tropisurcula (Eodrillia) grandis n. sp.
 Neogastropoda - Drilliidae
Spirotropis claibornica n. sp.
 Sorbeoconcha - Eocypraeidae
"Neosimnia scobina n. sp." = Transovula scobina
"Neosimnia scobina n. sp." = Transovula scobina Garvie 1996 snail
 Sorbeoconcha - Strombidae
"Ectinochilus sp." = Rimella
"Ectinochilus sp." = Rimella Agassiz 1840 true conch
 Sorbeoconcha - Vitrinellidae
Cyclostremiscus axacuus
 Sorbeoconcha - Littorinidae
Littorina (Prostheiiodon) eofasciata n. sp.
 Heterostrophia -
Trimalaxis ora n. sp.
Trimalaxis ora n. sp. snail
 Opisthobranchia - Retusidae
Retusa (Cylichnina) cf. adamski
 Opisthobranchia - Scaphandridae
Mnestia confusa n. sp.
Mnestia confusa n. sp. snail
 Opisthobranchia - Cylichnidae
Philine sp.
Philine sp. Ascanius 1772 snail
 Heterostropha - Pyramidellidae
? Odostomia (Doliella) ova, Turbonilla cf. neglecta, Pyramidella (Cossmannica) tundrae
Pyramidella (Cossmannica) tundrae snail
Pyramidella (Cossmannica) tundrae zigguratum
 Heterostropha - Acteonidae
"Semiacteon texanum n. sp." = Semiactaeon, Acteon pomilis
"Semiacteon texanum n. sp." = Semiactaeon snail
Acteon pomilis snail
Acteon pomilis punctatus
 Heterostropha - Mathildidae
Gegania antiquata, "Mathilda (Fimbriatella) iugum n. sp." = Fimbriatella, Mathilda (Mathilda) cf. retisculpta, ? Mathilda (Echinimathilda) cribraea n. sp.
Gegania antiquata snail
Gegania antiquata texana
"Mathilda (Fimbriatella) iugum n. sp." = Fimbriatella snail
Mathilda (Mathilda) cf. retisculpta snail
Mathilda (Mathilda) cf. retisculpta aldrichi
Bivalvia
 Poromyida - Verticordiidae
"Verticordia (Trigonulina) cf. satex" = Trigonulina
"Verticordia (Trigonulina) cf. satex" = Trigonulina clam
 Thraciida - Periplomatidae
Cochlodcsma (Cochlodesma) ovalis n. sp.
 Pholadomyida - Pholadomyidae
Pholadomya cf. leonensis
 Cardiida -
Tenuimactra hodgkinsoni n. sp.
 Cardiida - Veneridae
Pitar (Calpitaria) turneri n. sp., ? Pitar (Calpitaria) sp.
Pitar (Calpitaria) turneri n. sp. venus clam
? Pitar (Calpitaria) sp. Jukes-Browne 1908 venus clam
 Cardiida - Kelliellidae
"Lutetia cf. texana" = Kellyella (Lutetia), Alveinus cf. minutus
"Lutetia cf. texana" = Kellyella (Lutetia) clam
Alveinus cf. minutus Conrad 1865 clam
 Mytilida - Crenellidae
Gregariella ridgei n. sp.
Gregariella ridgei n. sp. clam
 Mytilida - Mytilidae
"Mytilus (Crenomytilus) sp." = Crenomytilus
"Mytilus (Crenomytilus) sp." = Crenomytilus Soot-Ryen 1955 mussel
 Pectinida - Pectinoidae
Amusium (Propeamusium) zinguli n. sp.
Scaphopoda
 Dentaliida - Dentaliidae
"Dentalium (Antalis) palmerae n. sp." = Antalis
"Dentalium (Antalis) palmerae n. sp." = Antalis tusk shell
 Dentaliida - Gadilinidae
Episiphon gracilis n. sp.
Episiphon gracilis n. sp. tusk shell