Current/wave winnowed sb facies (Punta Ballena Member) (Pleistocene of Ecuador)

Where: Manabi, Ecuador (0.2° S, 80.3° W: paleocoordinates 0.3° S, 79.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Punta Ballena Member (Jama Formation), Early/Lower Pleistocene (2.6 - 0.8 Ma)

• While not specified, it appears that the collection is a composite of several bulk samples showing similar taphonomic characteristics and stratal position. Early Pleistocene in age (MOI stages 35-50). The Punta Ballena Member of the Jama Formation is overlain by the El Matal Member (60 m thick, fluvial) and underlain by the Punta Pasa Borracho Member (20 m thick, marine). The Punta Ballena Member is 100 m thick, mixed fluvial and marine. The age of the Jama Formation is constrained by 40Ar/39Ar date of tephra beds.

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; unlithified, medium-grained, coarse, shelly/skeletal sandstone

• Shallow, high-energy marine environment, nearshore.
• Typically well-sorted trough cross-stratified and medium to very coarse grained shell-rich sands.

Size class: macrofossils

Preservation: original aragonite, original calcite

Collection methods: bulk, sieve,

• Unknown respository for material; possibly either Universita di Camerino or Universita di Pisa, Italy; faunal list is a composite of multiple bulk collections.

Primary reference: G. Cantalamessa, C. Di Celma, and L. Ragaini. 2005. Sequence stratigraphy of the Punta Ballena Member of the Jama Formation (Early Pleistocene, Ecuador): insights from integrated sedimentologic, taphonomic and paleoecologic analysis of molluscan shell concentrations. Palaeogeography, Palaeoclimatology, Palaeoecology 216:1-25 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 48664: authorized by Austin Hendy, entered by Austin Hendy on 26.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Mollusca
Gastropoda
 Epitonioidea - Epitoniidae
Depressiscala cf. polita, Epitonium sp., "Nitidiscala cf. durhamiana" = Epitonium (Nitidiscala), "Hirtoscala mitraeforme" = Epitonium (Hirtoscala), "Hirtoscala cf. replicata" = Epitonium (Hirtoscala), "Asperiscala minuticosta" = Epitonium (Asperiscala), "Asperiscala obtusa" = Epitonium (Asperiscala)
Epitonium sp. Bolten 1798 wentletrap
Listed as "Epitonium spp."
"Nitidiscala cf. durhamiana" = Epitonium (Nitidiscala) wentletrap
"Hirtoscala mitraeforme" = Epitonium (Hirtoscala) wentletrap
"Hirtoscala cf. replicata" = Epitonium (Hirtoscala) wentletrap
"Asperiscala minuticosta" = Epitonium (Asperiscala) wentletrap
"Asperiscala obtusa" = Epitonium (Asperiscala) wentletrap
 Vanikoroidea - Eulimidae
Niso sp. Risso 1826 snail
Balcis sp. Leach 1847 snail
Eulima sp. Risso 1826 snail
 Neotaenioglossa - Calyptraeidae
Crepidula sp. Lamarck 1799 slipper shell
Calyptraea cf. mamillaris Broderip 1834 slipper shell
 Neogastropoda - Olividae
Olivella sp. Swainson 1831 olive snail
Listed as "Olivella spp."
Oliva sp. Bruguière 1789 olive snail
 Neogastropoda - Buccinidae
Northia northiae Gray in Griffith & Pidgeon 1833 true whelk
Hanetia cymioides Pilsbry and Olsson 1941 true whelk
Hanetia cf. boggsi Pilsbry and Olsson 1941 true whelk
 Neogastropoda - Nassariidae
 Neogastropoda - Columbellidae
 Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891 auger snail
 Neogastropoda - Marginellidae
Prunum cf. curtum margin shell
Prunum sapotilla Hinds 1844 margin shell
 Neogastropoda - Cancellariidae
 Sorbeoconcha - Eratoidae
Hespererato panamensis Carpenter 1856 snail
 Sorbeoconcha - Skeneopsidae
Skeneopsis sp. Iredale 1915 periwinkle
 Sorbeoconcha - Naticidae
Naticidae indet. Guilding 1834 moon snail
Polinices sp. Monfort 1810 moon snail
Natica othello Dall 1908 moon snail
Natica inespectans moon snail
Natica elenae Récluz 1844 moon snail
 Sorbeoconcha - Tornidae
Teinostoma sp. Adams and Adams 1853 snail
 Sorbeoconcha - Vitrinellidae
Circulus sp. Jeffreys 1842 snail
Circulus occidentalis Pilsbry and Olsson 1941 snail
 Heterostropha - Ringiculidae
Ringicula sp. Deshayes 1838 snail
 Heterostropha - Pyramidellidae
Turbonilla sp. Risso 1826 snail
Listed as "Turbonilla spp."
 Heterostropha - Architectonicidae
Architectonica nobilis Röding 1798 sundial
 Opisthobranchia - Cylichnidae
Acteocina puruha Pilsbry and Olsson 1941 barrel-bubble
Bivalvia
 Arcida - Noetiidae
Noetia reversa Sowerby 1833 clam
 Arcida - Arcidae
Arcidae indet. Lamarck 1809 clam
"Grandiarca grandis" = Larkinia grandis Broderip and Sowerby 1829 ark
Anadara nux Sowerby I 1833 ark
Lunarca brevifrons Sowerby I 1833 ark
Anadara aequatorialis d'Orbigny 1846 ark
[entered as Anadara aequatoralis]
Anadara obesa Sowerby 1833 ark
 Pectinida - Anomiidae
Anomia peruviana d'Orbigny 1846 jingle
 Pectinida - Pectinoidae
"Pacipecten tumbezensis" = Leptopecten tumbezensis
"Pacipecten tumbezensis" = Leptopecten tumbezensis d'Orbigny 1846 scallop
 Lucinida - Lucinidae
"Lucina centrifuga" = Lucinisca centrifuga
"Lucina centrifuga" = Lucinisca centrifuga Dall 1901 clam
 Poromyida - Cuspidariidae
"Cardiomya ecuadoriana" = Cardiomya didyma
"Cardiomya ecuadoriana" = Cardiomya didyma Hinds 1843 clam
 Thraciida - Thraciidae
"Cyathodonta sp." = Thracia (Cyathodonta)
"Cyathodonta sp." = Thracia (Cyathodonta) Conrad 1849 clam
 Pholadida - Pholadidae
Martesia striata Linnaeus 1758 clam
 Pholadida - Corbulidae
"Corbula cf. nasuta" = Caryocorbula nasuta, "Corbula amethystina" = Caryocorbula amethystina, Corbula sp., "Corbula cf. nuciformis" = Corbula (Caryocorbula) nuciformis, "Corbula porcella" = Corbula (Caryocorbula) porcella, "Corbula tenuis" = Tenuicorbula tenuis
"Corbula cf. nasuta" = Caryocorbula nasuta Sowerby 1833 clam
"Corbula amethystina" = Caryocorbula amethystina Olsson 1961 clam
Corbula sp. Bruguière 1789 clam
Listed as "Corbula spp."
"Corbula cf. nuciformis" = Corbula (Caryocorbula) nuciformis Sowerby 1833 clam
"Corbula porcella" = Corbula (Caryocorbula) porcella Dall 1916 clam
"Corbula tenuis" = Tenuicorbula tenuis Sowerby 1833 clam
 Cardiida -
"Galeommatacea indet." = Galeommatoidea
"Galeommatacea indet." = Galeommatoidea Gray 1840 clam
 Cardiida - Galeommatidae
Solecardia sp. Conrad 1849 clam
 Cardiida - Lasaeidae
"Mysella compressa" = Kurtiella compressa, "Orobitella cf. zorrita" = Neaeromya zorrita, "Orobitella cf. margarita" = Neaeromya margarita, Aligena cokeri
"Mysella compressa" = Kurtiella compressa Dall 1913 clam
"Orobitella cf. zorrita" = Neaeromya zorrita Olsson 1961 clam
"Orobitella cf. margarita" = Neaeromya margarita Olsson 1961 clam
Aligena cokeri Dall 1909 aligena
 Cardiida - Montacutidae
Montacutidae indet. Clark 1855 clam
 Cardiida - Veneridae
Pitar sp., "Pitar paytensis" = Lamelliconcha paytensis, "Chione gorgona" = Lirophora mariae, "Chione jamaniana" = Chionopsis amathusia, "Chione traftoni" = Chionopsis ornatissima, "Anomalocardia callistoides" = Iliochione callistoides, Chione sp., Chione venadensis
Pitar sp. Römer 1857 venus clam
"Pitar paytensis" = Lamelliconcha paytensis d'Orbigny 1845 venus clam
"Chione gorgona" = Lirophora mariae d'Orbigny 1846 venus clam
"Chione jamaniana" = Chionopsis amathusia Philippi 1844 venus clam
"Chione traftoni" = Chionopsis ornatissima Broderip 1835 venus clam
"Anomalocardia callistoides" = Iliochione callistoides Pilsbry and Olsson 1941 venus clam
Chione sp. von Mühlfield 1811 venus clam
Listed as "Chione spp."
Chione venadensis Pilsbry and Olsson 1941 venus clam
 Cardiida - Mactridae
Mulinia pallida Broderip and Sowerby 1829 clam
Harvella elegans Sowerby 1825 clam
Mactrellona sp. Marks 1915 clam
 Cardiida - Anatinellidae
Raeta undulata Gould 1851 clam
 Cardiida - Cardiidae
"Trigoniocardia granifera" = Trigoniocardia graniferum, "Trigoniocardia obovalis" = Apiocardia obovale, Trachycardium sp.
"Trigoniocardia granifera" = Trigoniocardia graniferum Broderip and Sowerby 1829 cockle
"Trigoniocardia obovalis" = Apiocardia obovale Sowerby 1833 cockle
Trachycardium sp. Mörch 1853 cockle
 Cardiida - Solecurtidae
Solecurtus broggii Pilsbry and Olsson 1941 clam
Tagelus sp. Gray 1847 clam
Listed as "Tagelus spp."
Tagelus peruvianus Pilsbry and Olsson 1941 clam
 Cardiida - Tellinidae
Temnoconcha cognata Adams 1852 tellin clam
Strigilla dichotoma Philippi 1846 tellin clam
"Strigilla interrupta" = Strigilla (Pisostrigilla) interrupta Mörch 1860 tellin clam
Tellina sp. Linnaeus 1758 tellin clam
Listed as "Tellina spp."
"Tellina aequizonata" = Tellina (Miratellina) aequizonata Pilsbry and Olsson 1941 tellin clam
Tellina laplata Pilsbry and Olsson 1941 tellin clam
"Macoma lamproleuca" = Psammacoma lamproleuca Pilsbry and Lowe 1932 tellin clam
 Cardiida - Psammobiidae
"Sanguinolaria bertini" = Psammotella bertini
"Sanguinolaria bertini" = Psammotella bertini Pilsbry and Lowe 1932 clam
 Cardiida - Semelidae
"Semele guaymasensis" = Semele hanleyi
"Semele guaymasensis" = Semele hanleyi Angas 1879 clam
 Solenida - Solenidae
Solen sp. Linnaeus 1758 clam
 Carditida - Carditidae
Carditamera sp. Conrad 1838 clam
Carditamera cf. radiata Sowerby 1833 clam
 Nuculida - Nuculidae
"Nucula exigua" = Nucula (Lamellinucula) exigua Sowerby 1833 nut clam
 Nuculanida - Nuculanidae
Nuculana sp., "Nuculana elenensis" = Saccella elenensis, "Nuculana eburnea" = Saccella eburnea, Adrana sp., Adrana cf. sowerbyana
Nuculana sp. Link 1807 pointed nut clam
"Nuculana elenensis" = Saccella elenensis Sowerby I 1833 pointed nut clam
"Nuculana eburnea" = Saccella eburnea Sowerby 1833 pointed nut clam
Adrana sp. Adams and Adams 1858 pointed nut clam
Adrana cf. sowerbyana d'Orbigny 1833 pointed nut clam