Lead Slug Hill 1 is a fossil collection site in Garfield, Montana, cataloged in the Paleobiology Database. Fossils here come from the Hell Creek Formation, dated to the Lancian (72.2–66 million years ago). The depositional environment is recorded as terrestrial indet. Documented finds include Neoplagiaulacidae, Cimolodon nitidus, Cimolomys gracilis, Alphadon, Turgidodon rhaister, Protolambda hatcheri.

Geologic setting

Formation: Hell Creek
Geologic interval: Lancian
Age: 72.2–66 Ma
Depositional environment: terrestrial indet.
Recorded occurrences: 51

Fossils found here

Neoplagiaulacidae

Mammalia · Neoplagiaulacidae

Cimolodon nitidus

Mammalia · Cimolodontidae

Cimolomys gracilis

Mammalia · Cimolomyidae

Alphadon

Mammalia · Alphadontidae

Turgidodon rhaister

Mammalia · Alphadontidae

Protolambda hatcheri

Mammalia · Pediomyidae

Didelphodon vorax

Mammalia · Stagodontidae

Palatobaena bairdi

Reptilia · Baenidae

Lonchidion selachos

Chondrichthyes · Lonchidiidae

Restesia americana

Chondrichthyes · Orectolobidae

Myledaphus pustulosus

Chondrichthyes · Rhinobatidae

Chelydridae

Reptilia · Chelydridae

Acipenser eruciferus

Osteichthyes · Acipenseridae

Amia fragosa

Osteichthyes · Amiidae

Amia uintaensis

Osteichthyes · Amiidae

Lepisosteus occidentalis

Osteichthyes · Lepisosteidae

Estesesox foxi

Osteichthyes · Esocidae

Elasmobranchii

Chondrichthyes

Osteichthyes

Scapherpeton tectum

Amphibia · Scapherpetontidae

Opisthotriton kayi

Amphibia · Batrachosauroididae

Lepisosteus

Osteichthyes · Lepisosteidae

Champsosaurus natator

Reptilia · NO_FAMILY_SPECIFIED

Reptilia

Trionychidae

Reptilia · Trionychidae

Osteopygis backmani

Reptilia · Macrobaenidae

Parasaniwa wyomingensis

Reptilia · NO_FAMILY_SPECIFIED

Borealosuchus sternbergii

Reptilia · NO_FAMILY_SPECIFIED

Brachychampsa montana

Reptilia · Alligatoridae

Cryptodira

Reptilia

Sauria

Reptilia

Crocodylidae

Reptilia · Crocodylidae

Saurornitholestinae

Reptilia · Dromaeosauridae

Troodon

Reptilia · Troodontidae

Chirostenotes

Reptilia · Caenagnathidae

Paronychodon

Reptilia · NO_FAMILY_SPECIFIED

Edmontonia

Ornithischia · Nodosauridae

Thescelosaurus

Ornithischia · Thescelosauridae

Dromaeosauridae

Reptilia · Dromaeosauridae

Coeluridae

Reptilia · Coeluridae

Theropoda

Reptilia

Tyrannosauridae

Reptilia · Tyrannosauridae

Hadrosauridae

Ornithischia · Hadrosauridae

Ceratopsidae

Ornithischia · Ceratopsidae

Urodela

Amphibia

Amia

Osteichthyes · Amiidae

Champsosaurus

Reptilia · NO_FAMILY_SPECIFIED

Richardoestesia gilmorei

Reptilia · Dromaeosauridae

Showing 48 of 50 identified taxa.

Records and references

Data: Paleobiology Database collection 14582 (CC BY 4.0) — view the source record

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Questions about Lead Slug Hill 1

Can you collect at Lead Slug Hill 1?

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 Lead Slug Hill 1?

Fossil.

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Source: Paleobiology Database.