Also known as Silveirinha Pequena
Where: Região Centro, Portugal (40.0° N, 8.8° W: paleocoordinates 35.6° N, 10.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: MP 7 mammal zone, Rio Mondego Member (Silveirinha Formation), Early/Lower Eocene (55.8 - 48.6 Ma)
• The exact stratigraphic position of the Silveirinha locality is not fully constrained. It is generally regarded as either latest Paleocene and/or earliest Eocene. Most authors prefer assignment to the Early Eocene (MN7), based on mammal biostratigraphy (see e.g. Pais et al., 2012, Paleogene and Neogene of Western Iberia. Springer). (TL)
• group of beds-level stratigraphic resolution
Environment/lithology: crevasse splay; lenticular, calcareous conglomerate and muddy, sandy siliciclastic
Size classes: macrofossils, mesofossils
Primary reference: C. Estravís. 2000. Nuevos mamíferos del Eoceno Inferior de Silveirinha (Baixo Mondego, Portugal). Coloquios de Paleontología 51:281-311 [L. van den Hoek Ostende/L. van den Hoek Ostende/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 79200: authorized by Lars van den Hoek Ostende, entered by Lars van den Hoek Ostende on 27.02.2008, edited by John Alroy, Torsten Liebrecht, Patricia Holroyd, Philip Mannion and Richard Butler
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Salamandridae indet.8 Gray 1825 newt 37 vertebrae, 2 fragments of humeri (taxon already mentioned by Antunes & Russel, 1981)
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Pelobatidae indet.8 Lataste 1879 spadefoot toad 2 fragments of ilia (identified as Eopelobates sp. by Antunes & Russel, 1981)
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Reptilia | |
? Anguinae indet.8, Glyptosaurinae indet.8, cf. Melanosaurus sp.8, Glyptosaurini indet.8, Melanosaurini indet.8
? Anguinae indet.8 Gray 1825 squamates 1 posterior part of dentary, 1 vertebra (shape of teeth reminiscent of group of Anguinae that includes Dopasia and Anguis)
Glyptosaurinae indet.8 Marsh 1872 squamates some incomplete dentaries and hundreds of trunk osteoderms
cf. Melanosaurus sp.8 Gilmore 1928 squamates 1 incomplete jugal and 1 fragment of what is probably a parietal
Glyptosaurini indet.8 Sullivan 1979 squamates 6 fragments of skull bones and tens of isolated osteoderms (taxon identified as "forme du groupe Placosaurus" by Antunes & Russel, 1981)
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? Varanidae indet.8 Hardwicke and Gray 1824 monitor lizard vertebra (presence of a pseudozygosphene is reminiscent of the genus Saniwa)
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Amphisbaenidae indet.8 worm lizard 2 posterior parts of dentaries, about 10 vertebrae (taxon mentioned as Amphisbaenia indet. by Antunes & Russel, 1981)
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Boidae indet.8 Gray 1825 boa 16 vertebrae (taxon mentioned as Boinae indet. by Antunes & Russel, 1981)
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Dunnophis matronensis8 Rage 1973 dwarf boa 34 vertebrae (taxon mentioned as Dunnophis cf. matronensis by Antunes & Russel, 1981)
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Aves | |
Fluviatilavis antunesi n. gen. n. sp.6
Fluviatilavis antunesi n. gen. n. sp.6 Harrison 1983 shorebird Femur (holotype). Referred specimens: distal humerus and right radius
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Reptilia | |
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Neochelys sp.7 Bergounioux 1954 sideneck turtle multiple elements. Listed as "N. cf. arenarum" in Antunes & Russell, 1981
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Mammalia | |
Archaeonycteris praecursor n. sp.9
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Donrussellia lusitanica n. sp.
Donrussellia lusitanica n. sp. Estravís 2000 tarsier | |
Arcius zbyszewskii n. sp.
Arcius zbyszewskii n. sp. Estravís 2000 primate | |
"Meldimys cardosoi n. sp." = Euromys cardosoi Estravís 2000 rodent
Microparamys paisi Estravís 1994 rodent
Microparamys cf. nanus Teilhard de Jardin 1927 rodent | |
? Talpavus sp. Marsh 1872 placental | |
Nyctitheriidae indet. Simpson 1928 placental
cf. Leptacodon sp. Matthew and Granger 1921 placental | |
Mondegodon eutrigonus n. gen. n. sp.10
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cf. Viverravus sp. Marsh 1872 placental | |
cf. Miacis sp. Cope 1872 placental | |
Miacidae indet. Cope 1880 carnivoran | |
"Miacis cf. latouri" = Dormaalocyon latouri
"Miacis cf. latouri" = Dormaalocyon latouri Quinet 1966 placental | |
Creodonta indet. Cope 1875 creodont | |
Diacodexis antunesi n. sp.4
Diacodexis antunesi n. sp.4 Estravís and Russell 1989 even-toed ungulate CEPUNL SV3-338 - type; originally listed as Diacodexis cf. gazini (Antunes and Russell 1981)
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Paschatherium marianae, "Microhyus reisi" = Teilhardimys reisi
Paschatherium marianae Estravís and Russell 1992 odd-toed ungulate
"Microhyus reisi" = Teilhardimys reisi Antunes et al. 1987 odd-toed ungulate | |
"Hyracotherium cf. vulpiceps" = Pliolophus vulpiceps
"Hyracotherium cf. vulpiceps" = Pliolophus vulpiceps Owen 1858 horse | |
cf. Lophiaspis maurettei Depéret 1910 odd-toed ungulate | |
Ilerdoryctes cf. sigei Marandat 1989 eutherian | |
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Didelphodus sp. Cope 1882 eutherian | |
Eurodon silveirinhensis n. gen. n. sp.5
Eurodon silveirinhensis n. gen. n. sp.5 Estravís and Russell 1992 taeniodont SV2-15, isolated, right M3. Referred: SV3-234, right M3 and, more questionably, SV3-208, left M1 or M2
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Peratherium cf. constans Teilhard de Jardin 1927 marsupial |