NMMNH Loc. L-4005: Late/Upper Maastrichtian, New Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Vertebrata indet.
(Lamarck 1801)
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Jasinski et al. 2011 | 1 specimen | ||||||||
NMMNH P-32988 | ||||||||||
Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteidae indet.
Cuvier 1825
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Actinopteri
- Amiiformes
- Amiidae
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Amiidae indet.
Huxley 1861
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Reptilia
- Dinosauria
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Dinosauria indet.
Owen 1842
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Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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1 specimen | |||||||||
NMMNH P-36545 | ||||||||||
Reptilia
- Dromaeosauridae
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Dromaeosauridae informal indet. A
Colbert and Russell 1969
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Williamson and Brusatte 2014 | 1 specimen | ||||||||
NMMNH P-32814 | ||||||||||
Richardoestesia sp.
Currie et al. 1990
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2 specimens | |||||||||
NMMNH P-32742, 46389 | ||||||||||
= cf. Richardoestesia sp.
Currie et al. 1990
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Williamson and Brusatte 2014 | |||||||||
Reptilia
- Troodontidae
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Troodontidae indet.
Gilmore 1924
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2 specimens | |||||||||
NMMNH P-33901, 32772 | ||||||||||
cf. Troodontidae indet.
Gilmore 1924
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Williamson and Brusatte 2014 | 2 specimens | ||||||||
NMMNH P-32746 | ||||||||||
Reptilia
- Tyrannosauridae
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Tyrannosauridae indet.
Osborn 1906
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1 specimen | |||||||||
NMMNH P-32567 | ||||||||||
Reptilia
- Nodosauridae
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Ankylosauridae indet.
Brown 1908
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1 specimen | |||||||||
= Glyptodontopelta mimus
Ford 2000
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Jasinski et al. 2011 | |||||||||
NMMNH P-33917 | ||||||||||
Reptilia
- Ceratopsidae
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Ceratopsidae indet.
Marsh 1888
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Reptilia
- Hadrosauridae
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Hadrosauridae indet.
Cope 1869
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Reptilia
- Titanosauridae
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Titanosauridae indet.
Lydekker 1885
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Reptilia
- Pterosauria
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Pterosauria indet.
Kaup 1834
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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Reptilia
- Crocodylidae
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Crocodylidae indet.
Cuvier 1807
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Reptilia
- Alligatoridae
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Alligatoridae indet.
Gray 1844
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Reptilia
- Squamata
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Squamata indet.
Oppel 1811
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Reptilia
- Chamopsiidae
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Peneteius sp.
Estes 1969
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3 specimens | |||||||||
NMMNH P-36544, 41223, 41224 | ||||||||||
Reptilia
- Testudines
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Testudines indet.
Batsch 1788
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Mammalia
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Mammalia indet.
Linnaeus 1758
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Mammalia
- Multituberculata
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Multituberculata indet.
Cope 1884
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Mammalia
- Multituberculata
- Cimolomyidae
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Essonodon browni
Simpson 1927
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3 specimens | |||||||||
NMMNH P-32570, 32771, 32773 | ||||||||||
= Essonodon sp.
Simpson 1927
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Jasinski et al. 2011 | |||||||||
Mammalia
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Theria indet.
Parker and Haswell 1897
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Mammalia
- Glasbiidae
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cf. Glasbius sp.
Clemens 1966
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Williamson and Weil 2008 | |||||||||
NMMNH P-46384, 41560 | ||||||||||
Glasbius cf. intricatus
Clemens 1966
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Williamson and Weil 2008 | |||||||||
NMMNH P-46380, 46381 | ||||||||||
Mammalia
- Alphadontidae
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Alphadontidae indet.
Marshall et al. 1990
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Williamson and Weil 2008 | |||||||||
NMMNH P-41549 | ||||||||||
Mammalia
- Pediomyidae
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Pediomyidae indet.
(Simpson 1927)
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Williamson and Weil 2008 | |||||||||
NMMNH P-41557, 46395, 54200 | ||||||||||
Amphibia
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Amphibia indet.
Linnaeus 1758
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Amphibia
- Temnospondyli
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Caudata indet.
Scopoli 1777
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Chondrichthyes
- Rajiformes
- Rhinobatidae
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Myledaphus sp.
Cope 1876
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Jasinski et al. 2011 | 1 specimen | ||||||||
NMMNH P-44485 | ||||||||||
see common names |
Geography
Country: | United States | State/province: | New Mexico | County: | San Juan |
Coordinates: | 36.2° North, 108.9° West (view map) | ||||
Paleocoordinates: | 43.7° North, 86.6° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Altitude: | 6749 feet | ||||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Late/Upper Maastrichtian | ||
Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
Formation: | Ojo Alamo | Member: | Naashoibito | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Flynn et al. 2020: The mammalian faunas of the Naashoibito Member correlates to the Lancian Land Mammal Age, which suggests a late Maastrichtian age (Williamson and Weil, 2008a). Paleobotanical analyses on the megaflora and pollen indicates that the Ojo Alamo Sandstone is earliest Paleocene in age and is correlated with palynostratigraphic zones P1 or P2 ( Anderson, 1959; Nichols, 2003; Williamson et al., 2008; Flynn and Peppe, in press). Recent detrital sanidine and paleomagnetic work has constrained the Naashoibito Member to the latest Maastrichtian indicating the K/Pg boundary is represented by the unconformity between the Naashoibito Member and the Ojo Alamo Sandstone (Peppe et al., 2013; Flynn et al., 2019). These data, coupled with previous sedimentological analyses, demonstrate that the Naashoibito Member is late Maastrichtian in age and the Ojo Alamo Sandstone is early Paleocene in age with an erosive unconformity, that cuts out the Cretaceous-Paleogene boundary, separating the two units |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | concentrated |
Size of fossils: | mesofossils |
Disassociated major elements: | some |
Disassociated minor elements: | some |
Fragmentation: | occasional |
Collection methods and comments
Collection methods: | bulk,sieve,field collection |
Reason for describing collection: | biostratigraphic analysis |
Museum repositories: | NMMNH |
Metadata
Database number: | 59068 | ||
Authorizer: | M. Carrano, C. Boyd | Enterer: | M. Carrano, C. Boyd |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2006-03-08 14:04:01 | Last modified: | 2022-02-08 07:29:16 |
Access level: | the public | Released: | 2006-03-08 14:04:01 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
16780. | ETE | A. Weil, T. E. Williamson, F. Pignataro and J. Colon. 2004. The teiid lizard Peneteius discovered in the Upper Cretaceous Naashoibito Member of the Kirtland Formation, San Juan Basin, New Mexico. Journal of Vertebrate Paleontology 24(3, suppl.):127A [M. Carrano/M. Carrano] |
Secondary references:
66250 | S. E. Jasinski, R. M. Sullivan, and S. G. Lucas. 2011. Taxonomic composition of the Alamo Wash local fauna from the Upper Cretaceous Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico. In R. M. Sullivan, S. G. Lucas, & J. A. Spielmann (eds.), Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin 53:216-271 [M. Carrano/M. Carrano/P. Mannion] | |
42806 | T. Williamson and A. Weil. 2008. Metatherian Mammals from the Naashoibito Member, Kirtland Formation, San Juan Basin, New Mexico and Their Biochronologic and Paleobiogeographic Significance. Journal of Vertebrate Paleontology 28:803-815 [T. Williamson/T. Williamson] | |
50790 | T. E. Williamson and S. L. Brusatte. 2014. Small theropod teeth from the Late Cretaceous of the San Juan Basin, northwestern New Mexico and their implications for understanding latest Cretaceous dinosaur evolution. PLoS ONE 9(4):e93190:1-23 [M. Carrano/M. Carrano] |