La Parrita (SEPCP-9) (Cretaceous of Mexico)

Where: Coahuila, Mexico (25.5° N, 101.4° W: paleocoordinates 31.7° N, 75.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cerro del Pueblo Formation (Difunta Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; shale

Size class: macrofossils

Preservation: concretion

Collected in 2006

Primary reference: D. Brinkman, M. C. Aquillon-Martinez, C. A. De Leon Dávila, H. Jamniczky, D. A. Eberth and M. Colbert. 2009. Euclastes coahuilaensis sp. nov., a basal cheloniid turtle from the late Campanian Cerro del Pueblo Formation of Coahuila State, Mexico. PaleoBios 28(3):76-88 [D. Nicholson/D. Nicholson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154244: authorized by David Nicholson, entered by David Nicholson on 05.02.2014, edited by Matthew Carrano, Patricia Holroyd and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Osteichthyes
 Osteichthyes -
Osteichthyes indet.1
Osteichthyes indet.1 Huxley 1880 bony fish
SEPCP 9/575 (ganoid scale), 9/576 (coprolite)
Amphibia
 Salientia -
Anura indet.1
Anura indet.1 Fischer von Waldheim 1813 frog
SEPCP 9/583, 584, 588–590, 733
 Caudata - Urodela
Lisserpeton sp.1
Lisserpeton sp.1 Estes 1965 salamander
SEPCP 9/741
Reptilia
 Ornithischia - Nodosauridae
Nodosauridae indet.2
Nodosauridae indet.2 Marsh 1890 ankylosaur
2 osteoderms (ICM; PAR-01, 02); BENC 3/4-0001 (tooth)
 Ornithischia - Ceratopsidae
Ceratopsidae indet.1
Ceratopsidae indet.1 Marsh 1888 ceratopsid
SEPCP 9/699, 785 (teeth)
 Ornithischia - Hadrosauridae
Hadrosauridae indet.3, Saurolophinae indet.3, Saurolophinae indet.2
Hadrosauridae indet.3 Cope 1869 hadrosaurid
long bones, skull elements (BENC, CPC)
Saurolophinae indet.3 Brown 1914 hadrosaurid
BENC 1-007
Saurolophinae indet.2 Brown 1914 hadrosaurid
BENC 18/1-0901
 Theropoda - Ornithomimidae
Ornithomimidae indet.1
Ornithomimidae indet.1 Marsh 1890 ornithomimid
pedal ungual, 2 caudals (CPC); SEPCP 9/770 (distal end, femur) (Saltillomimus rapidus)
 Theropoda - Troodontidae
Troodontidae indet.2
Troodontidae indet.2 Gilmore 1924 maniraptoran
SEPCP 9/778 (tooth)
 Theropoda - Dromaeosauridae
Dromaeosauridae indet.2, Saurornitholestinae indet.2, Dromaeosaurinae indet.2
Dromaeosauridae indet.2 Colbert and Russell 1969 maniraptoran
dentary teeth, SEPCP 9/644
Saurornitholestinae indet.2 Longrich and Currie 2009 maniraptoran
SEPCP 9/624, 626, 700, 725, 726, 731
Dromaeosaurinae indet.2 Matthew and Brown 1922 maniraptoran
SEPCP 9/644 (dentary tooth)
 Theropoda - Tyrannosauridae
Tyrannosauridae indet.1
Tyrannosauridae indet.1 Osborn 1906 tyrannosaurid
2 teeth (SEPCP 9/702, 728)
 Loricata -
Eusuchia indet.4
Eusuchia indet.4 crocodilian
CPC 1479-1482 and 1484-1490
 Crocodylia -
Globidonta indet.4
Globidonta indet.4 Brochu 1999 crocodilian
CPC 1483
 Squamata -
Coniophis "sp. 1"1
Coniophis "sp. 1"1 Marsh 1892 snake
SEPCP 9/628
 Squamata - Mosasauridae
Mosasauridae indet.
Mosasauridae indet. Gervais 1852 mosasaur
Listed as associated fauna - no specimen numbers given.
 Squamata - Chamopsiidae
Peneteius cf. aquilonius1
Peneteius cf. aquilonius1 Estes 1969 squamates
SEPCP 9/587, 739
 Squamata -
Paraderma cf. bogerti1, Palaeosaniwa cf. canadensis1, ? Parasaniwa sp.1, Parasaniwa cf. wyomingensis1
Paraderma cf. bogerti1 Estes 1964 squamates
SEPCP 9/631
Palaeosaniwa cf. canadensis1 Gilmore 1928 squamates
SEPCP 9/633, 634, 645
? Parasaniwa sp.1 Gilmore 1928 squamates
SEPCP 9/630, 734
Parasaniwa cf. wyomingensis1 Gilmore 1928 squamates
SEPCP 9/582, 717, 718
 Squamata - Anguidae
Odaxosaurus "n. sp."1
Odaxosaurus "n. sp."1 Gilmore 1928 squamates
SEPCP 9/640, 641, 714
 Testudines - Bothremydidae
Chedighaii hutchisoni
Chedighaii hutchisoni Gaffney et al. 2006 sideneck turtle
Listed as associated fauna - no specimen numbers given.
 Testudines - Pancheloniidae
Euclastes coahuilaensis n. sp.
Euclastes coahuilaensis n. sp. Brinkman et al. 2009 turtle
Mammalia
 Multituberculata - Cimolomyidae
Cimolomyidae indet.1
Cimolomyidae indet.1 Sloan and Van Valen 1965 multituberculate
SEPCP 9/585, M2
 Theriamorpha - Pediomyidae
Pediomys cf. elegans1
Pediomys cf. elegans1 Marsh 1889 metatherian
SEPCP 9/716, R dentary w/teeth
 Theriamorpha - Alphadontidae
Turgidodon cf. russelli1
Turgidodon cf. russelli1 Fox 1979 metatherian
SEPCP 9/715, R dentary w/teeth
 Theriamorpha -
Marsupialia indet.1
Marsupialia indet.1 Illiger 1811 marsupial
SEPCP 9/587, lower molar
Actinopteri
 Amiiformes - Amiidae
Amiidae indet.1
Amiidae indet.1 Huxley 1861 bowfin
SEPCP 9/574
Chondrichthyes
 Rajiformes - Rhinobatidae
Myledaphus sp.1
Myledaphus sp.1 Cope 1876 guitarfish
SEPCP 9/573
Cephalopoda
 Ammonitida - Sphenodiscidae
Sphenodiscus sp.
Sphenodiscus sp. Meek 1871 ammonite
Listed as associated fauna - no specimen numbers given.
 Charales - Porocharaceae
Porochara gildermesti1
1Aguillon Martínez 2010; 2Ramírez-Velasco and Hernández-Rivera 2015; 3Ramírez-Velasco et al. 2014; 4Rivera-Sylva et al. 2019