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.
Bivalvia
 Pectinida - Pectinoidae
 Mytilida - Mytilidae
Gregariella ridgei n. sp. mussel
Mytilus (Crenomytilus) sp. Soot-Ryen 1955 mussel
 Cardiida -
 Cardiida - Kelliellidae
Alveinus cf. minutus, "Lutetia cf. texana" = Kellyella (Lutetia)
Alveinus cf. minutus Conrad 1865 clam
"Lutetia cf. texana" = Kellyella (Lutetia) clam
 Cardiida - Veneridae
Pitar (Calpitaria) turneri n. sp. venus clam
? Pitar (Calpitaria) sp. Jukes-Browne 1908 venus clam
 Thraciida - Periplomatidae
 Poromyida - Verticordiidae
"Verticordia (Trigonulina) cf. satex" = Trigonulina
"Verticordia (Trigonulina) cf. satex" = Trigonulina clam
 Pholadomyida - Pholadomyidae
Gastropoda
 Ptenoglossa - Epitoniidae
"Rugatiscala cooperi n. sp." = Opalia (Rugatiscala)
"Rugatiscala cooperi n. sp." = Opalia (Rugatiscala) wentletrap
 Cephalaspidea - Retusidae
 Cephalaspidea - Cylichnidae
Philine sp. Ascanius 1772 snail
 Heterostrophia -
Trimalaxis ora n. sp. snail
 Triphoroidea - Cerithiopsidae
 Neogastropoda - Buccinidae
Euryochetus punctatum n. sp. true whelk
Metula elongatoides n. sp. true whelk
 Neogastropoda - Fasciolariidae
 Neogastropoda - Cancellariidae
 Neogastropoda - Muricidae
Pterynotus (Pterynotus) cf. stenzeli Vokes 1970 mustached bat
 Neogastropoda - Cochlespiridae
 Neogastropoda - Drilliidae
 Neogastropoda - Turridae
 Neogastropoda - Raphitomidae
 Neogastropoda -
Varicobela filum n. sp. snail
Domenginella ridgei n. sp. snail
 Neogastropoda - Borsoniidae
 Neogastropoda -
Pseudometula gradus n. sp. snail
 Stromboidea - Strombidae
"Ectinochilus sp." = Rimella
"Ectinochilus sp." = Rimella Agasiz 1841 true conch
 Littorinoidea - Littorinidae
 Cypraeoidea - Eocypraeidae
"Neosimnia scobina n. sp." = Transovula scobina
"Neosimnia scobina n. sp." = Transovula scobina Garvie 1996 snail
 Vermetoidea - Vermetidae
Serpulorbis multiclavus n. sp. worm shell
 Rissooidea - Vitrinellidae
 Sorbeoconcha - Cerithiidae
Bittium tresquatrum n. sp. cerith snail
 Heterostropha - Acteonidae
Acteon pomilis, "Semiacteon texanum n. sp." = Semiactaeon
Acteon pomilis snail
Acteon pomilis punctatus
"Semiacteon texanum n. sp." = Semiactaeon snail
 Heterostropha - Mathildidae
"Mathilda (Fimbriatella) iugum n. sp." = Fimbriatella snail
Gegania antiquata snail
Gegania antiquata texana
Mathilda (Mathilda) cf. retisculpta snail
Mathilda (Mathilda) cf. retisculpta aldrichi
 Tectibranchia - Scaphandridae
Mnestia confusa n. sp. snail
 Pyramidelloidea - Pyramidellidae
Pyramidella (Cossmannica) tundrae snail
Pyramidella (Cossmannica) tundrae zigguratum
Scaphopoda
 Dentaliida - Gadilinidae
Episiphon gracilis n. sp. tusk shell
 Dentaliida - Dentaliidae
"Dentalium (Antalis) palmerae n. sp." = Antalis
"Dentalium (Antalis) palmerae n. sp." = Antalis tusk shell