PBDB Collection

USNM 36406, Teller Quadrangle, Don River area, York Mountain, Seward Peninsula (Ordovician of the United States)

Also known as Teller Quadrangle, Don River area, York Mountain, Seward Peninsula. R40W T1N Sec. 14

Where: Alaska (65.5° N, 165.9° W: paleocoordinates 17.7° N, 37.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Port Clarence Limestone Formation, Richmondian (449.6 - 445.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: bioturbated, dolomitic wackestone and bioturbated, dolomitic packstone

• Thin to medium thickness beds (3-30 cm thick) of bioturbated skeletal and pellta dolomitc wacketson and packstone. Megafossils are rare to locally abundant and inlcude brachiopods, gastropods, corals, pelecypods (Tandrediopsis), stromatoporoids, trilobites, ostracodes, bryozoans and polyplacophorans. Skeletal matieral is heavily micritized, indicating deposition within the photic zone.

Size class: macrofossils

Preservation: original silica, replaced with silica

Reposited in the USNM

Collection methods: bulk, chemical,

Primary reference: D. M. Rohr. 1988. Upper Ordovician gastropods from the Seward Peninsula, Alaska. Journal of Paleontology 62(4):551-566 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49351: authorized by Pete Wagner, entered by Pete Wagner on 13.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Gastropoda
Bellerophontida - Temnodiscidae	"Alaskadiscus donensis" = Alaskodiscus donensis³ "Alaskadiscus donensis" = Alaskodiscus donensis³ Rohr et al. 2003 snail
Euomphalina - Euomphalidae	"Pachystrophia spiralis" = Sinutropis spiralis, Sinutropis esthetica n. sp. "Pachystrophia spiralis" = Sinutropis spiralis Rohr 1988 snail Sinutropis esthetica n. sp. Perner 1903 snail
Murchisoniina - Loxonematidae	Rhabdostropha primitiva⁴ Rhabdostropha primitiva⁴ Longstaff 1924 snail Rhabdostropha primitiva
Murchisoniina - Lophospiridae	Eunema cf. quadrisulcata⁴ Eunema cf. quadrisulcata⁴ Ulrich and Scofield 1897 snail
Murchisoniina - Trochonematidae	Trochonema wartheni², Trochonemella reusingi Trochonema wartheni² Hussey 1926 snail Trochonema n. sp. Trochonemella reusingi Rohr 1988 snail
Murchisoniina - Eotomariidae	Paraliospira angulata Paraliospira angulata Ulrich and Scofield 1897 snail
Murchisoniina - Straparollinidae	Daidia sewardensis¹ Daidia sewardensis¹ Frýda et al. 2001 snail

¹Frýda et al. 2001; ²Hussey 1926; ³Rohr et al. 2003; ⁴Wagner 2023