"Salnova" quarry, Saltrio (Jurassic of Italy)

Where: Lombardy, Italy (45.9° N, 8.9° E: paleocoordinates 33.2° N, 15.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Arietites bucklandi ammonoid zone, Saltrio Formation (Calcari Selciferi Lombardi Group), Early/Lower Sinemurian (196.5 - 189.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; massive, glauconitic, shelly/skeletal, white packstone

• "a proximal slope or ramp, that is, an open subtidal zone reached by the effects of storm waves and with constant bottom currents, where re-sedimentation phenomena were frequent"
• "massive, whitish...marine limestones" glauconite is allochthonous.

•"Thin sections of the layer embedding the bones (Fig. 1J) show bioclastic packstone and grainstone, with abundant and sometimes large fragments of crinoids, echinoids, ostracods, brachiopods, bivalves, gastropods, and benthic foraminifers (F. Berra, 2018, personal observation). The skeletal grains are often rounded and sometimes micritized, which indicates the presence of continuous reworking bottom currents."

Size classes: macrofossils, mesofossils

• feeding traces of marine invertebrates on bones (but not described)

Preservation: adpression

Collected by A. Zanella in 1996

Collection methods: salvage, quarrying, chemical,

Primary reference: F. M. Dalla Vecchia. 2001. Terrestrial ecosystems on the Mesozoic peri-Adriatic carbonate platforms: the vertebrate evidence. VII International Symposium on Mesozoic Terrestrial Ecosystems. Asociación Paleontología Argentina, Publicación Especial 7:77-83 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 13310: authorized by John Hunter, entered by John Hunter on 20.02.2002, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Sedilichnus sp.
invertebrate traces on bones
 Foraminiferida -
"Foraminiferida indet." = Foraminifera
"Foraminiferida indet." = Foraminifera d'Orbigny 1826 foram
Ostracoda
  -
Ostracoda indet. Latreille 1802 ostracod
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
Cephalopoda
 Ammonitida - Arietitidae
"Paracoroniceras cf. gmuendense" = Coroniceras (Paracoroniceras)
"Paracoroniceras cf. gmuendense" = Coroniceras (Paracoroniceras) ammonite
 Nautilida - Cenoceratidae
Cenoceras striatum Sowerby 1817 nautiloid
Reptilia
 Saurischia -
Saltriovenator zanellai n. gen. n. sp.
Saltriovenator zanellai n. gen. n. sp. Dal Sasso et al. 2018 ceratosaur
"Saltriosaurus"; "a large theropod the size of an adult Allosaurus"
Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily