Amor, point 1: MN 5, Portugal
collected by M. T. Antunes, P. Mein 1970-1977
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Varanidae
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Varanus sp.
Merrem 1820
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Georgalis et al. 2020 | |||||||||
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Mammalia
- Proboscidea
- Gomphotheriidae
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Gomphotherium angustidens
Burmeister 1837
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| "rare" | ||||||||||
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Mammalia
- Soricidae
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Miosorex aff. grivensis
Depéret 1892
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| "rare" | ||||||||||
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Mammalia
- Erinaceidae
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Galerix cf. exilis
de Blainville 1839
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| "frequent" | ||||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Rhinocerotidae indet.
Gray 1821
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| "rare" | ||||||||||
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Mammalia
- Cainotheriidae
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Cainotherium miocenicum
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| "rare" | ||||||||||
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Mammalia
- Lagomorpha
- Ochotonidae
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Lagopsis cf. penai
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| "frequent" | ||||||||||
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Prolagus cf. oeningensis
(König 1825)
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| "very frequent" | ||||||||||
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Mammalia
- Rodentia
- Gliridae
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Gliridae indet.
Muirhead 1819
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| "rare" | ||||||||||
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Microdyromys koenigswaldi
de Bruijn 1966
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| "rare" | ||||||||||
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Mammalia
- Rodentia
- Sciuridae
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Sciuridae indet.
Gray 1821
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| "rare" | ||||||||||
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Mammalia
- Rodentia
- Cricetidae
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Megacricetodon collongensis
Mein 1958
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| "rare" | ||||||||||
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cf. Cricetodon indet.
Lartet 1851
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| "rare" | ||||||||||
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Fahlbuschia freudenthali n. sp.
Antunes and Mein 1981
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| "very frequent" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Portugal | State/province: | Região Centro | County: | Pinhal Litoral |
| Coordinates: | 39.8° North, 8.9° West (view map) | ||||
| Paleocoordinates: | 39.9° North, 10.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Langhian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | MN 5 | ||
| Age range of interval: | 15.98 - 13.82 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The presence of Lagopsis penai, Microdyromys koenigswaldi, and Megacricetodon collongensis points to an age younger than MN 6 and thus either MN 4 or MN 5. The grade of evolution of Lagopsis penai and the presence of Cricetodon speak in favor of MN 5 (Antunes & Mein, 1981). | |||||
Lithology and environment
| Primary lithology: | poorly lithified sandstone | ||
| Includes fossils? | Y | ||
| Lithology description: Sediments are significantly coarser than those of those in the outcrops 2 to 5. | |||
| Environment: | fluvial indet. | Tectonic setting: | foreland basin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Abundance in sediment: | common |
Collection methods and comments
| Collection methods: | surface (in situ),sieve | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | M. T. Antunes, P. Mein | Collection dates: | 1970-1977 |
| Collection method comments: The locality was detected by G. Zbyszewski and O. da Veiga Ferrera in April 1966 during a mapping campaign (sheet 23C of the "Geological Map of Portugal 1:50,000"). Systematic collecting took place from 1970 to 1977. Besides surface collecting, several hundred kilograms of sediment were screenwashed in order to gather small mammals. "The result was always positive but never brilliant" (Antunes & Mein, 1981). | |||
Metadata
| Also known as: | "premiere gisement" of Zbyszewski | ||
| Database number: | 136322 | ||
| Authorizer: | J. Mueller, J. Head | Enterer: | T. Liebrecht, G. Varnham |
| Modifier: | T. Liebrecht | Research group: | vertebrate |
| Created: | 2012-11-26 02:25:12 | Last modified: | 2012-11-25 15:56:24 |
| Access level: | the public | Released: | 2012-11-26 02:25:12 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 43601. | M. T. Antunes and P. Mein. 1981. Vertébrés du miocène moyen de amor (Leiria) - importance stratigraphique. Ciências da Terra 6:169-188 [J. Mueller/T. Liebrecht/T. Liebrecht] |
Secondary references:
| 72533 | G. L. Georgalis, M. K. Abdel Gawad, S. M. Hassan, A. N. El-Barkooky, and M. A. Hamdan. 2020. Oldest co-occurrence of Varanus and Python from Africa—first record of squamates from the early Miocene of Moghra Formation, Western Desert, Egypt. PeerJ 8(e9092):1-26 [P. Holroyd/P. Holroyd] |