Dwarf Lighthouse (UCMP V-5622) (Cretaceous of the United States)

Where: Niobrara County, Wyoming (43.0° N, 104.5° W: paleocoordinates 49.5° N, 79.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Lance Formation, Lancian (70.6 - 66.0 Ma)

Environment/lithology: terrestrial

Size class: mesofossils

Reposited in the UCMP

Collection methods: bulk, sieve,

Primary reference: W. A. Clemens. 1964. Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Marsupialia. University of California Publications in Geological Sciences 48:1-105 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14527: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Cardiida - Corbiculidae
? Corbiculidae indet.4 Gray 1847 clam
 Unionida - Unionidae
Unionidae indet.4 Rafinesque 1820 freshwater mussel
Chondrichthyes
 Sclerorhynchiformes - Sclerorhynchidae
Ischyrhiza avonicola4 Estes 1964 cartilaginous fish
 Hybodontiformes - Lonchidiidae
Lonchidion selachos4 Estes 1964 elasmobranch
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus4 Cope 1876 whiptail stingray
Actinopteri
 Teleostei - Aspidorhynchidae
 Amiiformes - Amiidae
"Kindleia fragosa" = Cyclurus fragosus4
"Kindleia fragosa" = Cyclurus fragosus4 Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis4 Leidy 1856 gar
Osteichthyes
 Caudata - Urodela
Habrosaurus dilatus4 Gilmore 1928 siren
Scapherpeton tectum4 Cope 1876 salamander
Aves
 Charadriiformes -
Charadriiformes "indet. sp. 1"5 Huxley 1867 shorebird
USNM 181923
Reptilia
 Avetheropoda -
Aublysodon mirandus1 Leidy 1868 coelurosaur
 Neornithischia - Ceratopsidae
cf. Triceratops sp.4 Marsh 1889 ceratopsid
 Neornithischia - Hadrosauridae
"cf. Anatosaurus sp." = Edmontosaurus4
"cf. Anatosaurus sp." = Edmontosaurus4 Lambe 1917 hadrosaurine
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii4
"Leidyosuchus sternbergi" = Borealosuchus sternbergii4 Gilmore 1910 crocodilian
 Crocodylia - Alligatoridae
Brachychampsa montana4 Gilmore 1911 crocodilian
Mammalia
 Leptictida - Gypsonictopidae
Gypsonictops hypoconus3 Simpson 1927 eutherian
 Theriiformes - Peradectidae
"Pediomys hatcheri" = Aletridelphys hatcheri2, "Pediomys florencae" = Aletridelphys florencae2
"Pediomys hatcheri" = Aletridelphys hatcheri2 Osborn 1898 metatherian
"Pediomys florencae" = Aletridelphys florencae2 Clemens 1966 metatherian
 Multituberculata - Cimolomyidae
Meniscoessus robustus Marsh 1889 multituberculate
Cimolomys gracilis Marsh 1889 multituberculate
 Multituberculata - Neoplagiaulacidae
Mesodma thompsoni Clemens 1964 multituberculate
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate