Nova Brasilia, Mirim-Imarui-Santo Antonio lagoonal complex (Holocene of Brazil)

Also known as Nova Brasilia

Where: Nova Brasilia, Brazil (28.2° S, 48.7° W: paleocoordinates 28.2° S, 48.7° W)

• outcrop-level geographic resolution

When: Holocene (0.0 - 0.0 Ma)

• 4 km long, 420 m wide deposit; thickness varying between 0.6 and 6.0 m. Radiocardbon ages of shells from this deposit indicate an age or 4,490 +/- 200 yrs BP.

• bed-level stratigraphic resolution

Environment/lithology: coastal; shelly/skeletal sandstone

• Lagoonal and estuarine, and beach and shall marine sands (latter two more likely for this collection). Originated as lagoonal and marine beach facies, tidal channel facies, including flood tidal deltas, and transgressive residual shell facies (lag deposits). Allocthonous in origin. Cross-bedding and reverse grading from migration of bedforms suggest transport of these materials as tractional current bars.
• Tabular great scale cross-bedded units composed alternately by more sandy and more shelly beds

Size class: macrofossils

Collection methods: Listed based on review of previous literature. Not collected in this study

Primary reference: F. Caruso Jr, K. Suguio, and T. Nakamura. 2000. The Quaternary geological history of the Santa Catarina southeastern region (Brazil). Anais da Academia Brasileira de Ciencias 72(2) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 43706: authorized by Austin Hendy, entered by Austin Hendy on 23.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only includes most abundant species. See Forti-Esteves (1986), Mendes (1993), and Pitoni (1993) for complete lists (all spanish/portugese). Faunal list looks representative.
Gastropoda
 Neotaenioglossa - Calyptraeidae
Crepidula plana Say 1822 slipper shell
 Cerithioidea - Cerithiidae
Cerithium stratum cerith snail
 Neogastropoda - Nassariidae
 Sorbeoconcha - Cerithiopsidae
"Cerithiopsis greeni" = Cerithiopsis greenii
"Cerithiopsis greeni" = Cerithiopsis greenii Adams 1839 snail
Spelling error; listed as "Cerithiopis"=Cerithiopsis
 Sorbeoconcha - Hydrobiidae
Heleobia australis d'Orbigny 1837 snail
 Opisthobranchia - Bullidae
Bulla striata BruguiƩre 1792 snail
 Neritoidea - Neritidae
Neritina virginea Linnaeus 1758 snail
Bivalvia
 Ostreida - Ostreidae
Ostrea equestris Say 1834 oyster
 Lucinida - Lucinidae
"Codakia costata" = Parvilucina costata
"Codakia costata" = Parvilucina costata d'Orbigny 1846 clam
 Cardiida - Veneridae
Anomalocardia brasiliana Gmelin 1792 venus clam
 Cardiida - Tellinidae
"Tellina (Eurytellina) lineata" = Eurytellina lineata
"Tellina (Eurytellina) lineata" = Eurytellina lineata Turton 1819 tellin clam