TMM 42452, western flank of Rattlesnake Mountain: Early/Lower Campanian, Texas
collected by T. Lehman, N. LaFon, K. Davies, J. Wagner 1983, 1999

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
Lehman et al. 2019 4 specimens
distal end of tibia, TMM 42452-4; humerus, TMM 42452-3; phalanges, TMM 42452-5, 42452-6
Kritosaurus cf. navajovius Brown 1910
1 individual
TMM 42452-1; unnamed genus and species; formerly called Kritosaurus n. sp.
    = Kritosaurus sp. Brown 1910
Lehman et al. 2019
    = Aquilarhinus palimentus n. gen., n. sp. Prieto-Márquez et al. 2020
Prieto-Márquez et al. 2020
TMM 42452-1 - holotype
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
Lehman et al. 2019 1 specimen
a fragmentary right ilium (TMM 42452-7)
Reptilia - Testudines - Bothremydidae
Bothremydidae indet. Baur 1891
Lehman et al. 2019 1 specimen
42452-8
see common names

Geography
Country:United States State/province:Texas County:Brewster
Coordinates: 29.2° North, 103.6° West (view map)
Paleocoordinates:35.8° North, 77.1° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Early/Lower Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
Stratigraphy
Formation:Aguja Member:Lower Shale
Stratigraphic resolution:bed
Stratigraphy comments: approximately 52 meters from base of formation in local section
Lithology and environment
Primary lithology: mudstone
Includes fossils?Y
Environment:paralic indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Collectors:T. Lehman, N. LaFon, K. Davies, J. Wagner Collection dates:1983, 1999
Metadata
Database number:200395
Authorizer:P. Holroyd, M. Carrano, P. Mannion Enterer:P. Holroyd, M. Carrano, P. Mannion
Modifier:M. Carrano Research group:vertebrate
Created:2019-04-02 11:10:59 Last modified:2023-08-04 13:49:17
Access level:the public Released:2019-04-02 11:10:59
Creative Commons license:CC BY
Reference information

Primary reference:

85562. T. M. Lehman. 1985. Stratigraphy, Sedimentology, and Paleontology of Upper Cretaceous (Campanian–Maastrichtian) Sedimentary Rocks in Trans-Pecos Texas xiv-299 [M. Carrano/M. Carrano]

Secondary references:

68399 T. M. Lehman, S. L. Wick, A. B. Brink and T. A. Shiller, II. 2019. Stratigraphy and vertebrate fauna of the lower shale member of the Aguja Formation (lower Campanian) in West Texas. Cretaceous Research 99:291-314 [P. Holroyd/P. Holroyd]
73442 A. Prieto-Márquez, J. R. Wagner, and T. Lehman. 2020. An unusual ‘shovel-billed’ dinosaur with trophic specializations from the early Campanian of Trans-Pecos Texas, and the ancestral hadrosaurian crest. Journal of Systematic Palaeontology 18(6):461-498 [P. Mannion/P. Mannion]