Amor, points 2 to 5: 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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Actinopteri
- Cypriniformes
- Cyprinidae
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Cyprinidae indet.
Rafinesque 1815
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| "very frequent" | ||||||||||
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Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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| "frequent" | ||||||||||
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Amphibia
- Temnospondyli
- Urodela
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Urodela indet.
(Duméril 1805)
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| "very frequent" | ||||||||||
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Reptilia
- Colubridae
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Colubridae indet.
Oppel 1811
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1 element | |||||||||
| "rare" | ||||||||||
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= cf. Coluber sp.
Linnaeus 1758
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Szyndlar and Alférez 2005 | |||||||||
| 1 vertebra, displays features characteristic of the C. dolnicensis-C. caspioides complex | ||||||||||
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Reptilia
- Varanidae
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Iberovaranus cf. catalaunicus
Hoffstetter 1969
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| "rare" | ||||||||||
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Reptilia
- Anguidae
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cf. Ophisaurus indet.
Daudin 1803
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| "rare" | ||||||||||
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Reptilia
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Aves indet.
(Linnaeus 1758)
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| "rare" | ||||||||||
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Crocodylia indet.
(Owen 1842)
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| "rare" | ||||||||||
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Reptilia
- Testudines
- Emydidae
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Emydidae indet.
Rafinesque 1815
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| "rare" | ||||||||||
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Mammalia
- Carnivora
- Mustelidae
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Mustelidae indet.
Fischer 1817
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| "rare" | ||||||||||
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Mammalia
- Suidae
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Hyotherium soemmeringi
von Meyer 1834
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| "rare" | ||||||||||
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Mammalia
- Tragulidae
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Dorcatherium naui
Kaup 1833
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| "rare" | ||||||||||
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Mammalia
- Palaeomerycidae
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Palaeomeryx kaupi
von Meyer 1834
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| "rare" | ||||||||||
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Mammalia
- Cervidae
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Cervidae informal indet. I
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| "rare" | ||||||||||
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? Cervidae informal indet. II
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| "rare" | ||||||||||
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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
- Erinaceidae
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Galerix cf. exilis
de Blainville 1839
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| "rare" | ||||||||||
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Mammalia
- Lagomorpha
- Ochotonidae
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Lagopsis cf. penai
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| "rare" | ||||||||||
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Prolagus cf. oeningensis
(König 1825)
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| "rare" | ||||||||||
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Mammalia
- Rodentia
- Cricetidae
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Fahlbuschia freudenthali
Antunes and Mein 1981
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| "rare" | ||||||||||
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Megacricetodon collongensis
Mein 1958
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| "very frequent" | ||||||||||
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Mammalia
- Proboscidea
- Gomphotheriidae
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Gomphotherium angustidens
Burmeister 1837
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| "rare" | ||||||||||
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Gastropoda
- Heterostropha
- Helicidae
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Helix spp.
Linnaeus 1758
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| "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: | outcrop |
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: | mudstone | ||
| Secondary lithology: | siltstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: Fine grained deposits (mud, silt and fine sand) dominate. | |||
| Environment: | mire/swamp | Tectonic setting: | foreland basin |
| Geology comments: The outcrops appear to represent a swamp environment with remains of (almost) exclusively aquatic animals like turtles, urodeles and fishes. Fragile shells of pulmonate gastropods may represent mass mortality through flooding and submersion of the plants they were living on. | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
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: 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
| Database number: | 136334 | ||
| Authorizer: | J. Mueller | Enterer: | T. Liebrecht |
| Modifier: | T. Liebrecht | Research group: | vertebrate |
| Created: | 2012-11-26 06:44:41 | Last modified: | 2016-04-07 05:38:20 |
| Access level: | the public | Released: | 2012-11-26 06:44:41 |
| 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:
| 43598 | Z. Szyndlar and F. Alférez. 2005. Iberian snake fauna of the early/middle Miocene transition. Revista Española de Herpetología 19:57-70 [J. Mueller/T. Liebrecht] |