Casa Blanca: Late/Upper Uintan, Texas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Spinizoncolpites prominatus
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Westgate 2001 | |||||||||
Langiopollis eocaenica
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Westgate 2001 | |||||||||
Paraoreomunea sp.
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Westgate 2001 | |||||||||
Leea sp.
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Westgate 2001 | |||||||||
Mammalia
- Primates
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Mahgarita cf. stevensi
(Wilson and Szalay 1976)
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Westgate 2012 | |||||||||
Mammalia
- Primates
- Microsyopidae
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Microsyops sp.
Leidy 1872
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11 specimens | |||||||||
Mammalia
- Primates
- Omomyidae
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Omomys sp.
Leidy 1869
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10 specimens | |||||||||
= Omomys cf. carteri
Leidy 1869
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Williams and Kirk 2008 | |||||||||
Macrotarsius cf. jepseni
(Robinson 1968)
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1 specimen | |||||||||
? Mytonius sp. n. sp.
Robinson 1968
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Westgate 2001 | |||||||||
synonym of Ourayia | ||||||||||
Mammalia
- Rodentia
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cf. Nonomys sp.
Emry and Dawson 1973
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Westgate 2001 | 1 specimen | ||||||||
Mammalia
- Rodentia
- Cylindrodontidae
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Cylindrodontidae indet.
Miller and Gidley 1918
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said to be new | ||||||||||
Mammalia
- Rodentia
- Eutypomyidae
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Eutypomyidae indet.
Miller and Gidley 1918
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121 specimens | |||||||||
(3 measurements) | ||||||||||
= Microeutypomys karenae n. sp.
Walton 1993
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Walton 1993 | |||||||||
from TMM 42486 | ||||||||||
Mammalia
- Rodentia
- Sciuravidae
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Pauromys sp.
Troxell 1923
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85 specimens | |||||||||
(3 measurements) | ||||||||||
= Pauromys simplex n. sp.
Walton 1993
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Walton 1993 | |||||||||
"Pauromys sp. new": "Group 2" also present; all from TMM 42486 | ||||||||||
Mammalia
- Rodentia
- Laredomyidae
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Laredomys riograndensis n. sp.
Wilson and Westgate 1991
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Wilson and Westgate 1991 | 6 specimens | ||||||||
may include unidentified mammal, said to be new | ||||||||||
Mammalia
- Rodentia
- Ischyromyidae
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Ischyromyidae indet.
Alston 1876
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two forms | ||||||||||
Mytonomys cf. robustus
(Peterson 1919)
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68 specimens | |||||||||
Microparamys sp.
Wood 1959
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not Laredomys | ||||||||||
Thisbemys sp.
Wood 1959
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Mammalia
- Carnivora
- Miacidae
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Uintacyon sp.
Leidy 1873
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1 specimen | |||||||||
= cf. Miocyon sp.
Matthew 1909
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Alroy 2002 | |||||||||
comparisons are to "U." scotti, see Westgate 1990 | ||||||||||
Mammalia
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Procynodictis cf. vulpiceps
Wortman and Matthew 1899
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1 specimen | |||||||||
Mammalia
- Acreodi
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cf. Simidectes magnus
(Peterson 1919)
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1 specimen | |||||||||
Mammalia
- Acreodi
- Mesonychidae
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Mesonychidae indet.
Cope 1875
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1 specimen | |||||||||
= Harpagolestes cf. uintensis
Scott 1888
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Westgate 2009 | |||||||||
cf. Harpagolestes uintensis
(Scott 1888)
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Westgate 2009 | |||||||||
Mammalia
- Perissodactyla
- Equidae
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Epihippus cf. gracilis
(Marsh 1871)
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12 specimens | |||||||||
(1 measurement) | ||||||||||
= Epihippus sp.
Marsh 1878
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Westgate 2012 | |||||||||
"Epihippus gracilis or E. uintensis" | ||||||||||
Mammalia
- Perissodactyla
- Brontotheriidae
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Brontotheriidae indet.
(Marsh 1873)
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6 specimens | |||||||||
= Notiotitanops mississippiensis
Gazin and Sullivan 1942
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Westgate 2009 | |||||||||
Mammalia
- Perissodactyla
- Amynodontidae
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Amynodon advenus
(Marsh 1875)
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5 specimens | |||||||||
also present at TMM 42185 | ||||||||||
Mammalia
- Perissodactyla
- Hyracodontidae
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? Triplopus sp.
Cope 1880
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Westgate 2001 | |||||||||
Mammalia
- Agriochoeridae
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Protoreodon petersoni
Gazin 1955
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8 specimens | |||||||||
Protoreodon parvus
Scott and Osborn 1887
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Westgate 2001 | |||||||||
Mammalia
- Protoceratidae
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Toromeryx cf. marginensis
Wilson 1974
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9 specimens | |||||||||
Leptoreodon leptolophus
Golz 1976
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24 specimens | |||||||||
additional specimen from TMM 41871 described by Wilson 1984 (4 measurements) | ||||||||||
Leptoreodon pusillus
Golz 1976
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3 specimens | |||||||||
Mammalia
- Leptochoeridae
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Leptochoeridae indet.
Marsh 1894
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6 specimens | |||||||||
= Laredochoerus edwardsi n. sp.
Westgate 1994
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Westgate 1994 | |||||||||
Laredochoerus edwardsi n. gen., n. sp.
Westgate 1994
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Westgate 2001 | |||||||||
Mammalia
- Geolabididae
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Centetodon pulcher
Marsh 1872
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5 specimens | |||||||||
Mammalia
- Sirenia
- Sirenia
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Sirenia indet.
Illiger 1811
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1 specimen | |||||||||
Mammalia
- Chiroptera
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Chiroptera indet.
Blumenbach 1779
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Westgate 2012 | |||||||||
Mammalia
- Condylarthra
- Hyopsodontidae
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Hyopsodus cf. uintensis
Osborn 1902
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3 specimens | |||||||||
Mammalia
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Peratherium marsupium
(Troxell 1923)
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4 specimens | |||||||||
= Herpetotherium marsupium
Troxell 1923
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Alroy 2002 | |||||||||
Peratherium comstocki
Cope 1884
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3 specimens | |||||||||
Reptilia
- Testudines
- Trionychidae
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Trionyx sp.
Geoffroy Saint-Hilaire 1809
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Westgate 1989 | |||||||||
= Trionychidae indet.
Gray 1825
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Alroy 2006 | |||||||||
Reptilia
- Testudines
- Kinosternoidea
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Xenochelys sp.
Hay 1906
|
Westgate 1989 | |||||||||
cf. Baptemys sp.
Leidy 1870
|
Westgate 1989 | |||||||||
Reptilia
- Testudines
- Emydidae
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Emydidae indet.
Rafinesque 1815
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Westgate 1989 | |||||||||
Reptilia
- Testudines
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Hadrianus sp.
Cope 1872
|
Westgate 1989 | |||||||||
cf. Allaeochelys sp.
Noulet 1867
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Westgate 1989 | |||||||||
Reptilia
- Palaeophiidae
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Pterosphenus schucherti
Lucas 1898
|
Westgate 1989 | |||||||||
Pterosphenus schucherti
Lucas 1898
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Westgate 2008 | |||||||||
Reptilia
- Anguidae
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Glyptosaurinae indet.
Marsh 1872
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Westgate 1989 | |||||||||
Glyptosaurinae indet.
Marsh 1872
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Westgate 2008 | |||||||||
Reptilia
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Aves indet.
Linnaeus 1758
|
Westgate 1989 | |||||||||
Reptilia
- Gruiformes
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Gruiformes indet.
Bonaparte 1854
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Westgate 2001 | |||||||||
Reptilia
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Caimaninae indet.
Brochu 1999
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Westgate 2008 | |||||||||
Allognathosuchus sp.
Mook 1921
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Westgate 1989 | |||||||||
Pristichampsus cf. vorax
(Troxell 1925)
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Westgate 1989 | |||||||||
recombined as Boverisuchus vorax | ||||||||||
Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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Westgate 1989 | |||||||||
Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus sp.
Agassiz 1843
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Westgate 1989 | |||||||||
Actinopteri
- Perciformes
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Diaphyodus wilsoni n. sp.
|
Westgate 1989 | |||||||||
Actinopteri
- Sciaenidae
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Jefitchia sp.
Frizzell and Dante 1965
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Westgate 1989 | |||||||||
Actinopteri
- Siluriformes
- Ariidae
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cf. Arius sp.
Cuvier and Valenciennes 1840
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Westgate 1989 | |||||||||
Actinopteri
- Elopiformes
- Phyllodontidae
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cf. Paralbula marylandica
Blake 1940
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Westgate 1989 | |||||||||
Actinopteri
- Elopiformes
- Megalopidae
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Megalopidae indet.
Jordan 1923
|
Westgate 1989 | |||||||||
Acipenseriformes
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Cylindracanthus sp.
Leidy 1856
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Westgate 2008 | |||||||||
Chondrichthyes
- Rajiformes
- Rhinobatidae
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Rhinobatos sp.
Link 1790
|
Westgate 1989 | |||||||||
Chondrichthyes
- Rhinopristiformes
- Pristidae
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Pristis sp.
Linck 1790
|
Westgate 1989 | |||||||||
Pristis sp.
Linck 1790
|
Westgate 2001 | |||||||||
Chondrichthyes
- Carcharhiniformes
- Galeocerdidae
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Galeocerdo eaglesomei
White 1926
|
Westgate 1989 | |||||||||
Galeocerdo eaglesomei
White 1926
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Westgate 2001 | |||||||||
Chondrichthyes
- Carcharhiniformes
- Carcharhinidae
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Carcharhinus sp.
de Blainville 1816
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Westgate 1989 | |||||||||
[entered as Carcarhinus sp.] | ||||||||||
Carcharhinus sp.
de Blainville 1816
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Westgate 2001 | |||||||||
Chondrichthyes
- Lamniformes
- Mitsukurinidae
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Striatolamia macrota
(Agassiz 1838)
|
Westgate 1989 | |||||||||
original and current combination Otodus macrotus | ||||||||||
Striatolamia macrota
(Agassiz 1838)
|
Westgate 2001 | |||||||||
original and current combination Otodus macrotus | ||||||||||
Chondrichthyes
- Myliobatiformes
- Dasyatidae
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Dasyatis sp.
Rafinesque 1810
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Westgate 1989 | |||||||||
Chondrichthyes
- Myliobatiformes
- Myliobatidae
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Rhinoptera sp.
Cuvier 1829
|
Westgate 1989 | |||||||||
Myliobatis sp.
Cuvier 1816
|
Westgate 1989 | |||||||||
Bivalvia
- Mytilida
- Mytilidae
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? Brachidontes sp.
Swainson 1840
|
Westgate 2001 | |||||||||
Bivalvia
- Ostreida
- Ostreidae
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Crassostrea amichel
|
Westgate 2001 | |||||||||
Gastropoda
- Turritellidae
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Turritella cortezi
|
Westgate 2001 | |||||||||
Gastropoda
- Naticidae
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Naticidae indet.
Guilding 1834
|
Westgate 2001 | |||||||||
Malacostraca
- Decapoda
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Decapoda indet.
Latreille 1802
|
Westgate 2001 | |||||||||
Ostracoda
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Ostracoda indet.
Latreille 1802
|
Westgate 2001 | |||||||||
Ostracoda
- Podocopida
- Bythocyprididae
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Bythocypris indet.
Brady 1880
|
Westgate 2001 | |||||||||
Polypodiopsida
- Schizaeales
- Schizaeaceae
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Lygodiumsporites adriennis
|
Westgate 2001 | |||||||||
Polypodiopsida
- Polypodiales
- Pteridaceae
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Pteris dentata
|
Westgate 2001 | |||||||||
Angiospermae
- Arecaceae
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Spinizonocolpites prominatus
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Gee 2001 | |||||||||
Nypa sp.
van Wurmb 1779
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Gee 2001 | |||||||||
Angiospermae
- Malvales
- Bombacaceae
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Bombacacidites paulus
|
Westgate 2001 | |||||||||
Lycopodiopsida
- Selaginellales
- Selaginellaceae
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Selaginella sp.
Beauvois 1804
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Westgate 2001 | |||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Webb |
Coordinates: | 27.5° North, 99.4° West (view map) | ||||
Paleocoordinates: | 29.5° North, 89.8° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
10 m.y. bin: | Cenozoic 2-3 | ||
*Period: | Early/Lower Tertiary | *Epoch: | Middle Eocene | *Local age/stage: | Late/Upper Uintan |
Key time interval: | Late/Upper Uintan | ||
Age range of interval: | 46.20000 - 39.70000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Laredo | ||||
Stratigraphy comments: Uinta C |
Lithology and environment
Primary lithology: | sandstone |
Lithology description: "massive sandstone, fine-grained" | |
Environment: | estuary/bay |
Geology comments: "tropical coastal conditions... mangrove swamp... estuarine" (Westgate 1989) |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | bulk,selective quarrying,sieve,field collection |
Minimum sieve size: | 1.400 |
Collection size: | 391 specimens |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | TMM |
Collection method comments: "Vertebrates were recovered by plaster jacketing and bulk sampling. More than 5,000 kg of sediment was screen-washed... [using] fine screen with a mesh of 11 x 7 threads /cm2" | |
Taxonomic list comments:two isolated specimens are from nearby TMM 41871 and TMM 42185, which are in the same unit
Westgate 1990 reports NISP 101 excluding rodents and indeterminate records; later publications report 288, for a total of 389 plus two species lacking counts; Westgate 1988 reports "nearly 700" and Westgate 1990 "over 700," and I believe the discrepancy is due to counting indeterminate specimens said to be Uinta C |
Metadata
Also known as: | TMM 42486; Spillway Quarry | ||
Database number: | 16542 | ||
Authorizer: | J. Alroy, P. Holroyd, M. Uhen | Enterer: | J. Alroy, M. Uhen, P. Holroyd |
Modifier: | M. Uhen | Research group: | marine invertebrate,vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2016-08-29 09:13:48 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
3615. | J. W. Westgate. 1988. Biostratigraphic implications of the first Eocene land-mammal fauna from the North American coastal plain. Geology 16:995-998 [J. Alroy/J. Alroy/M. Uhen] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
18120 | J. Alroy. 2006. Synonymies and reidentifications of North American fossil vertebrates. [J. Alroy/J. Alroy/J. Alroy] | |
72298 | C. T. Gee. 2001. The mangrove palem Nypa in the geologic past of the New World. Wetlands Ecology and Management 9:181-194 [M. Uhen/M. Uhen] | |
3547 | A. H. Walton. 1993. Pauromys and other small Sciuravidae (Mammalia: Rodentia) from the middle Eocene of Texas. Journal of Vertebrate Paleontology 13(2):243-261 [J. Alroy/J. Alroy/P. Wagner] | |
3548 | A. H. Walton. 1993. Pauromys and Other Small Sciuravidae (Mammalia: Rodentia) from the Middle Eocene of Texas. Journal of Vertebrate Paleontology 13(2):243-261 [J. Alroy/J. Alroy/J. Ju] | |
702 | J. W. Westgate. 1989. Lower vertebrates from an estuarine facies of the Middle Eocene Laredo Formation (Claiborne Group), Webb County, Texas. Journal of Vertebrate Paleontology 9(3):282-294 [J. Alroy/J. Alroy/J. Alroy] | |
3618 | J. W. Westgate. 1994. A New Leptochoerid from Middle Eocene (Uintan) Deposits of the Texas Coastal Plain. Journal of Vertebrate Paleontology 14(2):296-299 [J. Alroy/J. Alroy/J. Ju] | |
12028 | J. W. Westgate. 2001. Paleoecology and biostratigraphy of marginal marine gulf coast Eocene vertebrate localities. Eocene Biodiversity: Unusual Occurrences and Rarely Sampled Habitats 263-297 [M. Uhen/M. Uhen/M. Uhen] | |
40971 | J. W. Westgate. 2008. Vertebrates from a middle Eocene estuarine mangrove community in the Rio Grande Embayment. Abstracts with Programs - Geological Society of America 40(3):3-4 [M. Uhen/M. Uhen] | |
53393 | J. W. Westgate. 2009. First records of two large land mammals in middle Eocene coastal plain strata of Texas. Abstracts with Programs - Geological Society of America 41(7):106 [M. Uhen/C. Peredo] | |
60251 | J. W. Westgate. 2012. Palaeoecology of a primate-friendly, middle Eocene community from Laredo, Texas and a review of stratigraphic occurrences of Paleogene land mammals across the Gulf Coastal Plain, USA. Palaeobiodiversity and Palaeoenvironments 92:497-505 [P. Holroyd/P. Holroyd] | |
29561 | B. A. Williams and E. C. Kirk. 2008. New Uintan primates from Texas and their implications for North American patterns of species richness during the Eocene. Journal of Human Evolution 55(6):927-941 [J. Alroy/J. Alroy] | |
3674 | J. A. Wilson and J. W. Westgate. 1991. A Lophodont Rodent from the Middle Eocene of the Gulf Coastal Plain, Texas. Journal of Vertebrate Paleontology 11(2):257-260 [J. Alroy/J. Alroy/J. Ju] |