Bottomless Pits, Bed 9, Kaibab Formation, Walnut Canyon: Roadian, Arizona
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
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Gastropoda informal Genus and species indet. 2
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Rare category | |||||||||
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Gastropoda
- Meekospiridae
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Meekospira informal sp. 1
Ulrich and Scofield 1897
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Rare category | |||||||||
| (1 measurement) | ||||||||||
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Meekospira informal sp. 2
Ulrich and Scofield 1897
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Rare category | |||||||||
| (1 measurement) | ||||||||||
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? Girtyspira sp.
Knight 1936
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Rare category | |||||||||
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Gastropoda
- Cerithimorpha
- Orthonemidae
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Murchisonia geminocarinata
Chronic 1952
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Abundant category | |||||||||
| recombined as Donaldospira geminocarinata | ||||||||||
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Gastropoda
- Goniasmatidae
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? Goniasma sp.
Tomlin 1930
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Rare category | |||||||||
| (1 measurement) | ||||||||||
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Gastropoda
- Orthonematidae
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? Orthonema informal sp. 2
Meek and Worthen 1862
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Rare category | |||||||||
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? Orthonema striatonodosum
Chronic 1952
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Rare category | |||||||||
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Gastropoda
- Euomphalina
- Microdomatidae
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Glyptospira n. gen. cristulata
Chronic 1952
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Rare category | |||||||||
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Gastropoda
- Euomphalina
- Euomphalidae
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? Euomphalus informal sp. juvenile
Sowerby 1814
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Rare category | |||||||||
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= Euomphalidae informal sp. juvenile
White 1877
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Wagner 2023 | |||||||||
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Gastropoda
- Bellerophontida
- Bellerophontidae
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Bellerophon deflectus
Chronic 1952
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Rare category | |||||||||
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Gastropoda
- Murchisoniina
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Murchisonia sp.
d'Archiac and de Verneuil 1841
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Rare category | |||||||||
| (2 measurements) | ||||||||||
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= Murchisonioidea indet.
Koken 1896
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Wagner 2023 | |||||||||
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Gastropoda
- Murchisoniina
- Gosseletinidae
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? Glabrocingulum coronatum n. sp.
Chronic 1952
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Rare category | |||||||||
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Glabrocingulum laeviliratum
Chronic 1952
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Common category | |||||||||
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? Mourlonia cancellata n. sp.
Chronic 1952
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Rare category | |||||||||
| recombined as Ptychomphalina cancellata | ||||||||||
| (3 measurements) | ||||||||||
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Gastropoda
- Murchisoniina
- Phymatopleuridae
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? Worthenia sp.
de Koninck 1883
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Rare category | |||||||||
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Worthenia corrugata
Chronic 1952
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Rare category | |||||||||
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Gastropoda
- Murchisoniina
- Eotomariidae
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? Euconospira cryptolirata n. sp.
Chronic 1952
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2 specimens | |||||||||
| (1 measurement) | ||||||||||
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Scaphopoda
- Dentaliida
- Prodentaliidae
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Plagioglypta canna
(White 1874)
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Common category | |||||||||
| recombined as Prodentalium canna | ||||||||||
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Bivalvia
- Solemyida
- Manzanellidae
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Manzanella cryptodentata
Chronic 1952
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Rare category | |||||||||
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Bivalvia
- Solemyida
- Solemyidae
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Solemya parallella
(Beede and Rogers 1899)
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Rare category | |||||||||
| recombined as Acharax parallela | ||||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Palaeonucula levatiformis
(Walcott 1884)
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Abundant category | |||||||||
| recombined as Nuculavus levatiformis | ||||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Promytilus retusus n. sp.
Chronic 1952
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Rare category | |||||||||
| (15 measurements) | ||||||||||
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Bivalvia
- Arcida
- Parallelodontidae
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Grammatodon politus
(Girty 1908)
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Common category | |||||||||
| recombined as Grammatodon (Cosmetodon) politus | ||||||||||
| (7 measurements) | ||||||||||
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Bivalvia
- Ostreida
- Bakevelliidae
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Bakevellia prora n. sp.
Chronic 1952
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Common category | |||||||||
| (11 measurements) | ||||||||||
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Bivalvia
- Ostreida
- Pterineidae
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? Dozierella informal sp. 2
Newell 1940
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Rare category | |||||||||
| synonym of Leptodesma | ||||||||||
| (1 measurement) | ||||||||||
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Bivalvia
- Ostreida
- Pinnidae
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Aviculopinna sagitta n. sp.
Chronic 1952
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Rare category | |||||||||
| recombined as Meekopinna sagitta | ||||||||||
| (1 measurement) | ||||||||||
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Bivalvia
- Pectinida
- Limipectinidae
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Acanthopecten coloradoensis
(Newberry 1861)
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Rare category | |||||||||
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Bivalvia
- Pectinida
- Aviculopectinidae
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Aviculopecten kaibabensis
Newell 1938
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Rare category | |||||||||
| (17 measurements) | ||||||||||
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Bivalvia
- Myalinida
- Myalinidae
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? Myalinella adunca n. sp.
Chronic 1952
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Rare category | |||||||||
| (4 measurements) | ||||||||||
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Bivalvia
- Trigoniida
- Schizodidae
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Kaibabella n. gen. curvilenata
Chronic 1952
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Common category | |||||||||
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Schizodus texanus
Clifton 1942
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Rare category | |||||||||
| (14 measurements) | ||||||||||
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Bivalvia
- Pholadomyida
- Edmondiidae
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Edmondia sp.
de Koninck 1841
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Rare category | |||||||||
| (2 measurements) | ||||||||||
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Bivalvia
- Cardiida
- Kalenteridae
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Pleurophorus cf. mexicanus
Girty 1909
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Rare category | |||||||||
| recombined as Permophorus mexicanus | ||||||||||
| (10 measurements) | ||||||||||
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Pleurophorus albequus
Beede 1907
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Common category | |||||||||
| recombined as Permophorus albequus | ||||||||||
| (8 measurements) | ||||||||||
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Goniophora cristata
Chronic 1952
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Rare category | |||||||||
| recombined as Naiadopsis cristata | ||||||||||
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Bivalvia
- Sanguinolitidae
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? Sanguinolites sp.
M'Coy 1844
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Common category | |||||||||
| (13 measurements) | ||||||||||
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Alula gilberti
(White 1883)
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Rare category | |||||||||
| (1 measurement) | ||||||||||
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Allorisma terminale
(Hall 1852)
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Rare category | |||||||||
| recombined as Wilkingia terminale | ||||||||||
| (3 measurements) | ||||||||||
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Bivalvia
- Carditida
- Astartidae
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Astartella subquadrata
Girty 1909
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Abundant category | |||||||||
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Tergomya
- Archinacellida
- Metoptomatidae
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cf. Lepetopsis sp.
Whitfield 1882
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Rare category | |||||||||
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Cephalopoda
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Nautiloidea indet.
Agassiz 1847
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Rare category | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Arizona | County: | Coconino |
| Coordinates: | 35.2° North, 111.6° West (view map) | ||||
| Paleocoordinates: | 9.2° North, 36.6° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | local area |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Roadian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Roadian | ||
| Age range of interval: | 273.01000 - 266.90000 m.y. ago |
Stratigraphy
| Formation: | Kaibab | Member: | "Alpha" | ||
| Local section: | "Bottomless Pits" | Local bed: | 9 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Bed is 1 foot thick; forms weak ledge | |||||
Lithology and environment
| Primary lithology: | dolomitic,shelly/skeletal,yellow silty "limestone" |
| Lithology description: Limestone: yellow, dolomitic, silty, very fossiliferous | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 39999 | ||
| Authorizer: | D. Bottjer, M. Clapham, P. Wagner | Enterer: | M. Clapham, P. Wagner |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-06-13 10:58:44 | Last modified: | 2009-01-25 16:40:33 |
| Access level: | the public | Released: | 2004-06-13 10:58:44 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10841. | H. Chronic. 1952. Molluscan fauna from the Permian Kaibab Formation, Walnut Canyon, Arizona. Geological Society America Bulletin 63(2):95-166 [D. Bottjer/M. Clapham/M. Clapham] |
Secondary references:
| 9042 | P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner] |