Funtanazza A6 (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; massive, medium-grained, coarse sandstone

• Funtanazza Graben. "indicative of a a littoral environment, slightly deeper than Assemblage 4," and "reconstruction of mobile, coarse- to medium-grained, sandy bottoms. Additionally, firm substrates, secondary hardgrounds and seagrass and bryozoan meadows are suggested."
• "The echinoid assemblage occurs within a 1.5 m-thick, poorly to moderately sorted, medium- to coarse-grained sandstone deposit that appears massive and lies above a very fine-grained sandy deposit with spatangoid remains"

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 187428: 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
Polychaeta
 Sabellida - Serpulidae
Serpulidae indet. Rafinesque 1835
"serpulid worms"
Bivalvia
 Pectinida - Pectinoidae
Pecten sp. Müller 1776 scallop
"pectinid bivalves, such as Pecten and Aequipecten"; 51-150 specimens
Aequipecten sp. Fischer 1886 scallop
"pectinid bivalves, such as Pecten and Aequipecten"; 51-150 specimens
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
"gastropods"
Gymnolaemata
 Cheilostomata -
Cheilostomata indet. Busk 1859
"erected branching and reticulate cheilostomate bryozoans"
Echinoidea
 Cidaroida - Cidaridae
Prionocidaris sp. Agassiz 1863 pencil urchin
1 fragmented spine
 Camarodonta - Temnopleuridae
Genocidaris sp. Agassiz 1869 sea urchin
114 complete, 11 fragmented tests
 Camarodonta - Echinidae
Psammechinus sp. sea urchin
1 fragmented test
 Spatangoida - Spatangidae
Spatangus sp. Gray 1825 heart urchin
4 complete, 38 fragmented tests
 Echinolampadoida - Echinolampadidae
"Hypsoclypus sp." = Echinolampas
"Hypsoclypus sp." = Echinolampas Gray 1825 sea urchin
2 complete, 5 fragmented tests
 Clypeasteroida - Fibulariidae
Echinocyamus sp. sand dollar
294 complete, 6 fragmented tests