El Hatillo: Tortonian, Venezuela
collected by MCZ (B. Patterson), UCV (J. Royo-Gomez), UNEFM (O. Aguilera), UFAC (J. Bocquetin-Villanueva) and AMU (R. Sanchez) 1958-2003
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Notarius sp.
Gill 1863
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Aguilera et al. 2020 | |||||||||
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Reptilia
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Melanosuchus fisheri
Medina 1976
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Scheyer et al. 2013 | |||||||||
| AMU-CURS-234 (cranium and mandibles; also postcranium) | ||||||||||
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= aff. Melanosuchus fisheri
Medina 1976
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Scheyer and Delfino 2016 | |||||||||
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= Melanosuchus sp.
Gray 1862
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Bona et al. 2017 | |||||||||
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Purussaurus mirandai n. sp.
Aguilera et al. 2006
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Aguilera et al. 2006 | |||||||||
| UNEFM-CIAAP-1369 - type (a complete skull with associated mandibles, femur and ischium); paratypes: AMU-CURS-135 (a skull with associated mandibles) and UNEFM-CIAAP-1445 (right mandible); referred material: UNEFM-CIAAP-1363 (pubis), UNEFM-CIAAP-1367 (scapula, coracoid and ilium) and UNEFM-CIAAP-1370 (humerus) | ||||||||||
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Mourasuchus arendsi
Bocquentin Villanueva 1984
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Scheyer et al. 2013 | |||||||||
| AMU-CURS unnumbered (partial cranial remains) | ||||||||||
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= Mourasuchus sp.
Price 1964
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Scheyer and Delfino 2016 | |||||||||
| AMU-CURS-748 | ||||||||||
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Globidentosuchus cf. brachyrostris
Scheyer et al. 2013
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Scheyer and Delfino 2016 | |||||||||
| UNEFM-VF-017 | ||||||||||
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Charactosuchus mendesi
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Scheyer et al. 2013 | |||||||||
| AMU-CURS unnumbered (partial cranial remains) | ||||||||||
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Gryposuchus croizati
Riff and Aguilera 2008
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Scheyer et al. 2013 | |||||||||
| AMU-CURS-134 (cranium with associated mandibles) | ||||||||||
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Reptilia
- Testudines
- Chelidae
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Chelus lewisi
Wood 1976
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Villanueva 1988 | |||||||||
| synonym of Chelus colombianus | ||||||||||
| UNEFM 1371, complete shell badly crushed, and UNEFM 1415, anterior half of plastron | ||||||||||
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Actinopteri
- Siluriformes
- Ariidae
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Bagre urumacoensis
Aguilera and Marceniuk 2018
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Aguilera et al. 2020 | |||||||||
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Actinopteri
- Siluriformes
- Pimelodidae
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Phractocephalus nassi
Lundberg and Aguilera 2003
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| UNEFM-PF-0158 (paratype) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Venezuela | State/province: | Falcon |
| Coordinates: | 11.2° North, 70.2° West (view map) | ||
| Paleocoordinates: | 10.9° North, 68.6° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63000 - 7.24600 m.y. ago |
Stratigraphy
| Formation: | Urumaco | Member: | Upper | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: The geological units from which the specimens were obtained are the middle and upper members of the Urumaco Formation of Venezuela. These units have been recently summarized in the Léxico estratigráfico de Venezuela (1997). | |||||
Lithology and environment
| Primary lithology: | brown,gray claystone |
| Secondary lithology: | sandstone |
| Includes fossils? | Y |
| Environment: | fluvial-deltaic indet. |
| Geology comments: The paleoenvironments are interpreted as inner sub-littoral and coastal lagoon enviroments with riverine and estuarine influence (Díaz de Gamero, 1996). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | MCZ (B. Patterson), UCV (J. Royo-Gomez), UNEFM (O. Aguilera), UFAC (J. Bocquetin-Villanueva) and AMU (R. Sanchez) | Collection dates: | 1958-2003 |
Metadata
| Also known as: | Urumaco | ||
| Database number: | 136777 | ||
| Authorizer: | C. Jaramillo, E. Vlachos, P. Mannion, M. Uhen | Enterer: | G. Ballen, M. Uhen, E. Vlachos, P. Mannion |
| Modifier: | M. Uhen | ||
| Created: | 2012-12-04 10:56:13 | Last modified: | 2020-08-21 17:04:19 |
| Access level: | database members | Released: | 2015-12-04 10:56:13 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 43734. | J. G. Lundberg and O. A. Aguilera. 2003. The late Miocene Phractocephalus catfish (Siluriformes: Pimelodidae) from Urumaco, Venezuela: additional specimens and reinterpretation as a distinct species. Neotropical Ichthyology 1(2):97-109 [C. Jaramillo/G. Ballen] |
Secondary references:
| 73502 | O. Aguilera, R. T. Lopes, F. Rodriguez, T. M. Santos, C. Rodrigues-Almeida, P. Almeida, A. S. Machado and T. Moretti. 2020. Fossil sea catfish (Siluriformes; Ariidae) otoliths and in-skull otoliths from the Neogene of the Western Central Atlantic. Journal of South American Earth Sciences 101:102619 [M. Uhen/M. Uhen/P. Mannion] | |
| 46438 | O. A. Aguilera, D. Riff, and J. Bocquentin-Villanueva. 2006. A new giant Purussaurus (Crocodyliformes, Alligatoridae) from the Upper Miocene Urumaco Formation, Venezuela. Journal of Systematic Palaeontology 4(3):221-232 [P. Mannion/P. Mannion] | |
| 64700 | P. Bona, M. V. Fernandez Blanco, T. M. Scheyer and C. Foth. 2017. Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of Melanosuchus fisheri (Crocodylia, Alligatoroidea). Ameghiniana 54(6):681-687 [E. Vlachos/E. Vlachos] | |
| 47517 | T. M. Scheyer, O. A. Aguilera, M. Delfino, D. C. Fortier, A. A. Carlini, R. Sánchez, J. D. Carrillo-Briceño, L. Quiroz, and M. R. Sánchez-Villagra. 2013. Crocodylian diversity peak and extinction in the late Cenozoic of the northern Neotropics. Nature Communications 4:1907:1-9 [P. Mannion/P. Mannion/P. Mannion] | |
| 61076 | T. M. Scheyer and M. Delfino. 2016. The late Miocene caimanine fauna (Crocodylia: Alligatoroidea) of the Urumaco Formation, Venezuela. Palaeontologia Electronica 19(3):48A:1-57 [P. Mannion/P. Mannion] | |
| 64172 | J. B. Villanueva. 1988. On the Turtle Chelus lewisi (Testudinata, Pleurodira). Journal of Hepretology 22(3):343-344 [E. Vlachos/E. Vlachos] |