USNM Locality 38755- Cascaden Ridge, near Amy Dome, Livengood Quadrangle (Devonian of the United States)

Where: Livengood B-3 Quadrangle County, Alaska (65.5° N, 148.5° W: paleocoordinates 1.0° S, 41.9° W)

• outcrop-level geographic resolution

When: Tortodus australis conodont zone, Cascaden Formation, Eifelian (393.3 - 387.7 Ma)

• Tortodus australis zone (395 - 394 Ma on Gradstein et al.). Originally entered under the informal name of Cascaden Ridge Unit. Undelries Tolovana Limestone & overlies Pridoli-Emsian aged ultramafics, with Amy Creek below those.

• formation-level stratigraphic resolution

Environment/lithology: submarine fan; siltstone

• lensoid silstone channel deposit

Size class: macrofossils

Preservation: original calcite, replaced with calcite

Reposited in the USNM

Collection methods: bulk, mechanical,

Primary reference: R. B. Blodgett. 1992. Taxonomy and paleobiogeographic affinities of an early Middle Devonian (Eifelian) Gastropod faunule from the Livengood Quadrangle, East-Central Alaska. Palaeontographica Abteilung A 221:125-168 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3639: authorized by Pete Wagner, entered by Pete Wagner on 05.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• I've updated the generic taxonomy
Show authors, comments, and common names
unclassified
  -
Prodentalium sp., Plagioglypta sp., "Stropheodontid" indet.
"Stropheodontid" indet.
originally entered as "stropheodontid "
Trilobita
 Proetida - Proetidae
Dechenella sp.
Dechenella sp. Kayser 1880 trilobite
Gastropoda
 Neritoidea - Naticopsidae
"Naticopsis (Naticopsis) bowsheri" = Naticopsis bowsheri, Naticopsis (Naticopsis) sp., "Naticopsis (Jedria) deckeri" = Jedria deckeri
"Naticopsis (Naticopsis) bowsheri" = Naticopsis bowsheri Blodgett 1992 snail
Naticopsis (Naticopsis) sp. M'Coy 1844 snail
"Naticopsis (Jedria) deckeri" = Jedria deckeri Blodgett 1992 snail
 Caenogastropoda - Orthonematidae
? Aclisina sp., "? Stegocoelia (Taosia) sp." = Taosia
? Aclisina sp. de Koninck 1881 snail
originally entered as "Aclisina? sp."
"? Stegocoelia (Taosia) sp." = Taosia Girty 1939 snail
 Euomphalina -
"Straparollus (Serpulospira) sp." = Serpulospira
"Straparollus (Serpulospira) sp." = Serpulospira Cossmann 1915 snail
 Euomphalina - Euomphalidae
Mastigospira weberae, Pseudomphalotrochus linsleyi, "Straparollus (Euomphalus) bundtzeni" = Euomphalus bundtzeni
Mastigospira weberae Blodgett 1992 snail
Pseudomphalotrochus linsleyi Blodgett 1992 snail
"Straparollus (Euomphalus) bundtzeni" = Euomphalus bundtzeni Blodgett 1992 snail
 Euomphalina -
"? Gyronema ormistoni" = Kitikamispira ormistoni
"? Gyronema ormistoni" = Kitikamispira ormistoni Blodgett 1992 snail
 Euomphalina - Omphalocirridae
Hypomphalocirrus cf. rugosus
Hypomphalocirrus cf. rugosus Linsley 1973 snail
 Bellerophontida - Bellerophontidae
Retispira sp., "Bucanopsis sullivani" = Retispira sullivani, "Bellerophon (Bellerophon) chapmani" = Bellerophon chapmani, "Bellerophon (Bellerophon) livengoodensis" = Bellerophon livengoodensis
Retispira sp. Knight 1945 snail
"Bucanopsis sullivani" = Retispira sullivani Blodgett 1992 snail
"Bellerophon (Bellerophon) chapmani" = Bellerophon chapmani Blodgett 1992 snail
"Bellerophon (Bellerophon) livengoodensis" = Bellerophon livengoodensis Blodgett 1992 snail
 Murchisoniina - Murchisoniidae
Murchisonia sp.
Murchisonia sp. d'Archiac and de Verneuil 1841 snail
 Murchisoniina - Gosseletinidae
Buechelia nodosa, Ptychomphalina sp., Euryzone sp., Winterbergiella aff. binodosa, "Peruvispira churkini n. sp." = Spinulrichospira churkini, Callistadia sp.
Buechelia nodosa Blodgett 1992 snail
Ptychomphalina sp. Fischer 1885 snail
Euryzone sp. Koken 1896 snail
"Peruvispira churkini n. sp." = Spinulrichospira churkini Blodgett 1992 snail
Callistadia sp. Knight 1945 snail
 Murchisoniina - Loxonematidae
Loxonema "sp. 1", Loxonema "sp. 2", "Loxonema cingulatum" = Clathronema cingulata, Clathronema cloughi
Loxonema "sp. 1" Phillips 1841 snail
Loxonema "sp. 2" Phillips 1841 snail
"Loxonema cingulatum" = Clathronema cingulata Whiteaves 1892 snail
Clathronema cloughi Blodgett 1992 snail
 Murchisoniina - Soleniscidae
"? Macrochilina sp." = Strobeus, "Strobeus aff. pulchella" = Bensbergia subcostata
"? Macrochilina sp." = Strobeus de Koninck 1881 snail
"Strobeus aff. pulchella" = Bensbergia subcostata von Schlotheim 1820 snail
 Murchisoniina - Palaeozygopleuridae
Palaeozygopleura sp., Alaskozygopleura crassicostata
Palaeozygopleura sp. Horný 1955 snail
Alaskozygopleura crassicostata Blodgett 1992 snail
Rhynchonellata
 Orthida - Schizophoriidae
Schizophoria sp.
Schizophoria sp. King 1850
unclassified
  -
"Echinodermata" indet.
"Echinodermata" indet. Klein 1754
originally entered as "pelmatazoan ossicles "
Echinoidea
  - Proterocidaridae
Pholidocidaris sp.
Pholidocidaris sp. Meek and Worthen 1869 sea urchin
Anthozoa
 Tabulata -
"Tabulata" indet.
"Tabulata" indet. Milne-Edwards and Haime 1850 tabulate coral
originally entered as "dendroid tabulate "