Cri-Cri locality, Altares (Cretaceous of Mexico)

Also known as Manuel Benavides

Where: Chihuahua, Mexico (28.9° N, 103.4° W: paleocoordinates 35.4° N, 77.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Aguja Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• upper part of Aguja Formation

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; yellow mudstone

• "light-yellow mudstone bed"

Size classes: macrofossils, mesofossils

Collected in 2000

Collection methods: quarrying, surface (float), surface (in situ), mechanical, sieve,

Primary reference: M. Montellano-Ballesteros, R. Hernández-Rivera, G. Álvarez-Reyes, P. Andrade-Ramos, and L. Martín-Medrano. 2000. Discovery of Late Cretaceous vertebrate local faunas in northern Mexico. Journal of Vertebrate Paleontology 20(3 (suppl.)):58A-59A [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35707: authorized by Matthew Carrano, entered by Matthew Carrano on 05.01.2004, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet. Haeckel 1866
petrified wood
Reptilia
 Saurischia -
Titanosauria indet.3 Bonaparte and Coria 1993 sauropod
IGM 6080, 4 posterior caudals, 1 dorsal or sacrocaudal
 Ornithischia - Nodosauridae
Nodosauridae indet.2 Marsh 1890 ankylosaur
ALT-01, 02 (osteoderms)
 Ornithischia - Ceratopsidae
? Centrosaurinae indet. Lambe 1915 ceratopsid
"ceratopsian, maybe a centrosaurinae"
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
vertebrae, IGM
 Theropoda - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969 maniraptoran
 Theropoda - Ornithomimidae
Ornithomimidae indet. Marsh 1890 ornithomimid
 Theropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
 Loricata -
Crocodylia indet. crocodilian
 Testudinata -
cf. Compsemys victa1 Leidy 1856 turtle
IGM-11513
 Testudinata - Baenidae
cf. Baenidae indet.1 Cope 1882 turtle
IGM-11484 and IGM-11485
 Testudines - Nanhsiungchelyidae
Basilemys sp.1 Hay 1902 turtle
IGM-11510 and IGM-11511
 Testudines - Trionychidae
Trionychidae indet.1 softshell turtle
IGM-11497; IGM-11498; IGM-11499; IGM-11500; and IGM-11501