Funtanazza A2 (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: shoreface; bioturbated, fine-grained sandstone

• Funtanazza Graben. "[I]nner sublittoral sandy environment with moderate energy." "secondary hardgrounds and bryozoan and seagrass patches [can] be inferred."
• "The echinoid assemblage occurs within an approximately 2 m-thick,well sorted, strongly bioturbated fine-grained sandstone deposit (Figs. 4 and 5)."

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 187424: 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
 Pectinida - Pectinoidae
Aequipecten sp. Fischer 1886 scallop
"pectinid bivalves, such as Aequipecten"; 51-150 specimens
 Ostreida -
Ostreoidea indet. Rafinesque 1815 oyster
"Ostreids"; 10-50 specimens
Bryozoa indet. Ehrenberg 1831
 Cidaroida - Psychocidaridae
Tylocidaris (Sardocidaris) sp. Lambert 1907 pencil urchin
2 fragmented spines
 Cidaroida - Cidaridae
Prionocidaris sp. Agassiz 1863 pencil urchin
4 fragmented spines
 Camarodonta - Temnopleuridae
Genocidaris sp. Agassiz 1869 sea urchin
8 complete
 Camarodonta - Toxopneustidae
Tripneustes sp. Agassiz 1841 sea urchin
1 complete, 11 fragmented tests
 Spatangoida - Schizasteridae
Schizaster sp. Agassiz 1835 heart urchin
7 complete, 5 fragmented tests
 Spatangoida - Loveniidae
Lovenia sp. Desor 1847 heart urchin
9 complete, 3 fragmented tests
 Spatangoida - Spatangidae
Spatangus sp. Gray 1825 heart urchin
31 complete, 52 fragmented tests
 Spatangoida - Brissidae
Trachypatagus sp. Pomel 1869 heart urchin
1 complete, 1 fragmented test
 Echinolampadoida - Echinolampadidae
"Echinolampas sp." = Echinolampas, "Hypsoclypus sp." = Echinolampas
"Echinolampas sp." = Echinolampas Gray 1825 sea urchin
1 complete, 11 fragmented tests
"Hypsoclypus sp." = Echinolampas Gray 1825 sea urchin
12 complete, 6 fragmented tests
 Clypeasteroida - Fibulariidae
Echinocyamus sp. sand dollar
2 complete
 Clypeasteroida - Clypeasteridae
Clypeaster sp. Lamarck 1801 sand dollar
2 complete, 2 fragmented tests