tracksite 2 km north of Cabo Espichel (Cretaceous to of Portugal)

Where: Lisboa, Portugal (38.4° N, 9.2° W: paleocoordinates 32.0° N, 1.1° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Areia do Mastro Formation, Late/Upper Hauterivian to Late/Upper Hauterivian (136.4 - 125.5 Ma)

• bed AM7

• bed-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; bioturbated, nodular, gray, blue grainstone

• "a carbonate subtidal to intertidal lagoon environment"
• The exposed Areia do Mastro Formation beds mainly consist of bluish-grey clay-limestones dominated by micrite, 0.5–2.1 m thick, intercalated with sandy (quartz-rich) micritic limestone beds, 0.3–0.6 m thick. Most of the beds show a nodular texture due to intense invertebrate bioturbation (mainly Thalassinoides suevicus), typical of an intertidal to subtidal lagoon environment...The bed AM7 (Fig. 2) also contains internal moulds of gastropods and rare fragments of turtle shell."

Size classes: macrofossils, mesofossils

Preservation: mold/impression, trace

Collected in 2019–2020

Collection methods: surface (in situ),

• carried out by the Centro Portuguès de Geo-História e Pré-História (CPGP)

Primary reference: S. D. Figueiredo, P. P. Cunha, X. Pereda Suberbiola, C. N. Carvalho, I. S. Carvalho, E. Buffetaut, H. Tong, M. Fernanda Sousa, V. Antunes and R. Anastácio. 2022. The dinosaur tracksite from the lower Barremian of Areia do Mastro Formation (Cabo Espichel, Portugal): implications for dinosaur behavior. Cretaceous Research 137:105219 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 225890: authorized by Matthew Carrano, entered by Matthew Carrano on 07.06.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet. Linnaeus 1758 clam
 Architaenioglossa - Ampullinidae
cf. Ampullina sp. Férussac 1822 snail
 Testudinata -
Testudinata indet. Oppel 1811 turtle
shell fragments
 Pterosauria -
Pterosauria indet. Kaup 1834 pterosaur
 Ornithischia - Iguanodontipodidae
Caririchnium sp. Leonardi 1984 ornithopod
 Saurischia -
Theropoda "indet. 1" Marsh 1881 theropod
morphotype T1
 Saurischia - Eubrontidae
? Megalosauripus sp. Lessertisseur 1955 theropod
morphotype T2
 Saurischia -
aff. Titanosauriformes indet. Salgado et al. 1997 sauropod
 Lepisosteiformes -
Lepidotes indet. Agassiz 1832 gar
 Ichnofossils -