Ferris Formation (UW V-92027) (Cretaceous of the United States)

Also known as A Gathering of Ankylosaurs

Where: Carbon County, Wyoming (41.9° N, 106.9° W: paleocoordinates 48.9° N, 82.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• said to be Lancian

Environment/lithology: terrestrial

Reposited in the UW

Primary reference: J. J. Eberle and J. A. Lillegraven. 1998. A new important record of earliest Cenozoic mammalian history: geologic setting, Multituberculata, and Peradectia. Rocky Mountain Geology 33(1):3-47 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 14541: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Matthew Carrano and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha -
Protalphadon cf. lulli1 Clemens 1966 metatherian
 Allotheria -
Multituberculata indet. Cope 1884 multituberculate
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate
Reptilia
 Squamata -
Squamata indet.4 squamates
UW 27227
 Testudines - Trionychidae
Trionychidae sp.3 Gray 1825 softshell turtle
UW 30604
 Loricata -
Eusuchia indet.4 Huxley 1875 crocodilian
UW 27291 "(= "Leidyosuchus")"
 Crocodylia - Alligatoridae
Brachychampsa sp.4 Gilmore 1911 crocodilian
UW 26536
 Ornithischia - Ceratopsidae
Chasmosaurinae indet.4 Lambe 1915 ceratopsid
UW 26610 "(= Triceratops sp.)"
 Ornithischia - Hadrosauridae
Hadrosaurinae indet.4 Lambe 1918 hadrosaurine
UW 26600, 27415
 Ornithischia - Ankylosauridae
Ankylosaurus magniventris2 Brown 1908 ankylosaurid
UW 26294
 Neornithischia - Thescelosauridae
Thescelosauridae indet.4 Sternberg 1937 ornithischian
UW 26311
 Theropoda -
Theropoda indet.4 theropod
UW 27445
 Theropoda - Dromaeosauridae
Saurornitholestes sp.4 Sues 1978 maniraptoran
UW 27301
Amphibia
 Caudata -
Caudata indet.4 salamander
UW 27213
 Caudata - Urodela
Habrosaurus dilatus4 Gilmore 1928 siren
UW 26619
Actinopteri
 Amiiformes - Amiidae
"Cyclurus fragosa" = Cyclurus fragosus4
"Cyclurus fragosa" = Cyclurus fragosus4 Jordan 1927 bowfin
UW 26538
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet.4 Cuvier 1825 gar
UW 26537
Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus bipartitus4 Cope 1876 guitarfish
UW 26603
 Hybodontiformes - Lonchidiidae
"Lissodus selachos" = Lonchidion selachos4
"Lissodus selachos" = Lonchidion selachos4 Estes 1964 elasmobranch
UW 26589