Gastropod Bay Site 3 (Cretaceous of Canada)

Also known as GB3

Where: Alberta, Canada (49.1° N, 110.5° W: paleocoordinates 56.3° N, 76.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Dinosaur Park Formation (Belly River Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• from a channel lag within the 8-16 m thick Lethbridge coal zone

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; shelly/skeletal, sandy mudstone

• "heterolithic mudstone... thin, sandy, gastropod-shell-rich lags"

Size class: mesofossils

Collection methods: bulk, sieve,

Primary reference: D. A. Eberth and D. B. Brinkman. 1997. Paleoecology of an estuarine, incised-valley fill in the Dinosaur Park Formation (Judith River Group, Upper Cretaceous) of southern Alberta, Canada. Palaios 12:43-58 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 34312: authorized by John Alroy, entered by John Alroy on 26.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Acipenseriformes - Acipenseridae
Acipenser albertensis Lambe 1902 sturgeon
 Acipenseriformes - Polyodontidae
Polyodontidae indet. Bonaparte 1838 paddlefish
Reptilia
 Plesiosauria -
Plesiosauria indet. de Blainville 1835 plesiosaur
 Crocodylia -
Leidyosuchus canadensis Lambe 1907 crocodilian
 Choristodera -
Champsosaurus natator Parks 1933 choristodere
Amphibia
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Actinopteri
 Holostei -
 Lepisosteiformes - Lepisosteidae
"Atractosteus occidentalis" = Lepisosteus occidentalis
"Atractosteus occidentalis" = Lepisosteus occidentalis Leidy 1856 gar
 Amiiformes - Amiidae
Amiidae indet. Huxley 1861 bowfin
 Aspidorhynchiformes - Aspidorhynchidae
 Teleostei -
Teleostei "indet. R" Müller 1846
Teleostei "indet. S" Müller 1846
Teleostei "indet. A" Müller 1846
Teleostei "indet. D" Müller 1846
Teleostei "indet. L" Müller 1846
Teleostei "indet. F" Müller 1846
Teleostei "indet. Q" Müller 1846
 Albuliformes - Albulidae
Coriops amnicolus Estes 1969 bonefish
 Elopiformes - Phyllodontidae
Paralbula casei Estes 1969
Chondrichthyes
 Hybodontiformes - Hybodontidae
"Hybodus montanensis" = Meristodonoides montanensis
"Hybodus montanensis" = Meristodonoides montanensis Case 1978 elasmobranch
 Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876 guitarfish