Viso railway trench (Cretaceous of Portugal)

Also known as Vizo, Arazède

Where: Coimbra, Portugal (40.2° N, 8.7° W: paleocoordinates 33.0° N, 8.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Argilas de Aveiro Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; pebbly, gray, green, carbonaceous claystone

• "clear-gray clays with green parts, containing nodules of brown marl, small pieces of coal, small quartzite pebbles, coprolites and numerous partly worn, partly well-preserved bones."

Size classes: macrofossils, mesofossils

Collected by H.-E. Sauvage

Primary reference: H.-E. Sauvage. 1898. Les Reptiles et les Poissons des terrains Mésozoïques du Portugal [The reptiles and fishes from the Mesozoic terrains of Portugal]. Bulletin de la Société Géologique de France, 3e série 26:442-446 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49228: authorized by Matthew Carrano, entered by Matthew Carrano on 11.04.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Salientia - Bufonidae
Bufo sp.3 Laurenti 1768 toad
Reptilia indet.2 Laurenti 1768 reptile
 Loricata -
Crocodilus blavieri Gray 1831 crocodilian
 Ornithischia -
? Ceratopsia indet.2 ceratopsian
Antunes & Pais 1978
 Theropoda -
Maniraptora indet.2 Gauthier 1986 maniraptoran
Maniraptora indet.2 Gauthier 1986 maniraptoran
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
"fresh-water turtle"
 Pycnodontiformes - Pycnodontidae
"Microdon sp." = Polypsephis4
"Microdon sp." = Polypsephis4 Hay 1899
 Teleostei -
 Clupeiformes - Clupeoidei
Clupea arezedi n. sp.4 Sauvage 1898 herring
 Lepisosteiformes - Lepisosteidae
Clastes lusitanicus n. sp.4 Sauvage 1898 gar
Clastes pustulosus n. sp.4 Sauvage 1898 gar
Cycadophyta indet.3 Bessey 1907
 Fagales - Fagaceae
Quercus sp.3 Linnaeus 1753 oak
"3 or 4 species"