UW 270 is a fossil collection site in Clallam, Washington, cataloged in the Paleobiology Database. Fossils here come from the Clallam Formation, dated to the Chattian (27.3–23.04 million years ago). The depositional environment is recorded as offshore. Documented finds include Trochita, Crepidula praerupta, Sinum scopulosum, Ancistrolepis, Bruclarkia yaquinana, Acila (Truncacila) conradi.

Geologic setting

Formation: Clallam
Geologic interval: Chattian
Age: 27.3–23.04 Ma
Depositional environment: offshore
Recorded occurrences: 27

Geology notes

All Clallam Formation assemblages represent inner sublittoral depths (less than about 100 m). Qualitative analysis of these assemblages indicates a gradual shallowing during deposition of the formation. The highest strata in the formation contain coal and are presumably non-marine.

Locality notes

Cliff, south shore of Strait of Juan de Fuca, Clallam County, Washington. Lat/long based on locality of Clallam, Clallam county.

Fossils found here

Trochita

Gastropoda · Calyptraeidae

Crepidula praerupta

Gastropoda · Calyptraeidae

Sinum scopulosum

Gastropoda · Naticidae

Ancistrolepis

Gastropoda · Buccinidae

Bruclarkia yaquinana

Gastropoda · Siphonaliidae

Acila (Truncacila) conradi

Bivalvia · Nuculidae

Securella clallamensis

Bivalvia · Veneridae

Nuculana (Saccella) chehalisensis

Bivalvia · Nuculanidae

Katherinella arnoldi

Bivalvia · Veneridae

Macoma nasuta

Bivalvia · Tellinidae

Modiolus (Modiolus) directus

Bivalvia · Mytilidae

Panopea generosa

Bivalvia · Hiatellidae

Patinopecten propatulus

Bivalvia · Pectinidae

Mactromeris albaria

Bivalvia · Mactridae

Tellina

Bivalvia · Tellinidae

Thracia (Homoeodesma) trapezoides

Bivalvia · Thraciidae

Dentalium pseudonyma

Scaphopoda · Dentaliidae

Crepidula princeps

Gastropoda · Calyptraeidae

Liracassis petrosa

Gastropoda · Cassidae

Ficus (Trophosycon) clallamensis

Gastropoda · Ficidae

Records and references

Data: Paleobiology Database collection 37594 (CC BY 4.0) — view the source record

Getting there

No directions yet.

How hard is it?

Getting there: – / 5
Finding anything: – / 5
Votes: 0

Trip reports

No trip reports yet.

Questions about UW 270

Can you collect at UW 270?

It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.

What minerals are found at UW 270?

Fossil.

Comments

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

No comments yet.

What to bring

The whole kit

Estwing E3-22P Rock PickThe industry-standard 22oz geological hammer. One-piece forged steel with shock-reduction grip.See it on Amazon Compare picks
Clear Anti-Fog Safety Glasses (4 Pack)Adjustable, anti-fog lenses for clear vision in any conditions.See it on Amazon Compare picks
Watertight Medical KitCompact, waterproof first aid kit with bandages, moleskin, and field essentials.See it on Amazon Compare picks
Northwest Treasure Hunter's Gem and Mineral GuideWhether you're digging for the first time or are an experienced rockhound or "prospector," with a simple rock hammer and...See it on Amazon

As an Amazon Associate we earn from qualifying purchases.

Source: Paleobiology Database.