Funtanazza A4 (Miocene to of Italy)

Where: Sardinia, Italy (39.6° N, 8.5° E: paleocoordinates 43.1° N, 2.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Aquitanian to Aquitanian (23.0 - 16.0 Ma)

• The marine sedimentary sequence at Funtanazza, containing the echinoid assemblages studied here, is a ca. 80 m-thick siliciclastic succession (Fig. 2)." "The studied section belongs to Unit E of" Units A to E of Assorgia et al. (1992) and "and approximately corresponds to the section D-D’ described by Assorgia et al. (1992)." "Radiometric dating using the 87Sr/86Sr ratio provided an age between 22.3 ± 0.3 Ma and 20.3 ± 0.2 Ma (Aquitanian to Early Burdigalian) for the succession (Barbieri et al., 1997)."

• group of beds-level stratigraphic resolution

Environment/lithology: foreshore; conglomerate and coarse-grained, pebbly sandstone

• Funtanazza Graben. "hard substrates but also algal stands, bryozoan and seagrass patches to be inferred. Additionally, soft substrates are suggested"
• "The assemblage is found within a mixed clastic-bioclastic conglomerate to coarse-grained sandstone deposit (Fig. 7). Pebbles, cobbles and boulders sporadically occur. The echinoid-bearing deposit lies above a shell coquina mainly composed of pectinid bivalves"

Size classes: macrofossils, mesofossils

Collection methods: Bulk collections

Primary reference: A. Mancosu and J. H. Nebelsick. 2016. Echinoid assemblages from the early Miocene of Funtanazza (Sardinia): A tool for reconstructing depositional environments along a shelf gradient. Palaeogeography, Palaeoclimatology, Palaeoecology 454:139-160 [P. Novack-Gottshall/P. Novack-Gottshall]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 187426: authorized by Phil Novack-Gottshall, entered by Phil Novack-Gottshall on 27.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collecting focused on echinoids
Bivalvia
 Ostreiformii -
Pectinida indet. Gray 1854 scallop
"Pectinids"; >150 specimens
 Ostreida -
Ostreoidea indet. Rafinesque 1815 oyster
"Ostreids"; 51-150 specimens
Echinoidea
 Cidaroida - Psychocidaridae
Tylocidaris (Sardocidaris) sp. Lambert 1907 pencil urchin
1 fragmented test
 Cidaroida - Cidaridae
Prionocidaris sp. Agassiz 1863 pencil urchin
8 fragmented spines
 Camarodonta - Temnopleuridae
Genocidaris sp. Agassiz 1869 sea urchin
18 complete, 2 fragmented tests
 Camarodonta - Echinidae
Psammechinus sp. sea urchin
1 fragmented test
 Spatangoida - Spatangidae
Spatangus sp. Gray 1825 heart urchin
44 fragmented tests
 Echinolampadoida - Echinolampadidae
"Hypsoclypus sp." = Echinolampas
"Hypsoclypus sp." = Echinolampas Gray 1825 sea urchin
32 fragmented tests
 Clypeasteroida - Fibulariidae
Echinocyamus sp. sand dollar
22 complete
 Clypeasteroida - Clypeasteridae
Clypeaster sp. Lamarck 1801 sand dollar
9 fragmented tests
Anthozoa
 Zoantharia -
Scleractinia indet. Bourne 1900 stony coral
"corals"; <10 specimens