Howard Locality (Cretaceous of the United States)

Also known as UCMP V-5709

Where: Niobrara County, Wyoming (43.3° N, 104.5° W: paleocoordinates 49.7° N, 79.3° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

• "sandstone"

Size class: mesofossils

Collected by W. A. Clemens; reposited in the UCMP

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 14570: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Matthew Carrano and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus4 Cope 1876 whiptail stingray
Actinopteri
 Acanthomorphata - Sciaenidae
? Platacodon nanus4 Marsh 1889
 Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis4 Leidy 1856 gar
Osteichthyes
 Salientia -
 Caudata - Urodela
Scapherpeton tectum4 Cope 1876 salamander
Reptilia
 Testudines - Trionychidae
Trionychidae indet.3 Gray 1825 softshell turtle
Trionychidae sp.5 Gray 1825 softshell turtle
Voucher: UCMP 173375
 Testudines -
Compsemys sp.5 Leidy 1856 turtle
Voucher: UCMP 173374
Compsemys victa3 Leidy 1856 turtle
 Testudines - Pantrionychidae
Helopanoplia sp.5 Hay 1908 turtle
Voucher: UCMP 173409
 Testudines - Panchelydridae
Chelydridae sp.5 turtle
Voucher: UCMP 173373
 Theropoda -
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii4
"Leidyosuchus sternbergi" = Borealosuchus sternbergii4 Gilmore 1910 crocodilian
Mammalia
 Leptictida - Gypsonictopidae
Gypsonictops hypoconus2 Simpson 1927 eutherian
 Theriiformes - Peradectidae
"Pediomys cooki" = Leptalestes cooki1
"Pediomys cooki" = Leptalestes cooki1 Clemens 1966 metatherian
 Didelphimorphia - Stagodontidae
Didelphodon vorax1 Marsh 1889 marsupial
 Multituberculata - Cimolomyidae
Cimolomys gracilis Marsh 1889 multituberculate
 Multituberculata - Cimolodontidae
Cimolodon nitidus Marsh 1889 multituberculate