PBDB

Rio Pirabas (Maury coll.) (Miocene of Brazil)

Where: Para, Brazil (0.8° S, 47.1° W: paleocoordinates 0.8° S, 43.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pirabas Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

• Horizontal beds of limestone near sea level. Closely associated with faunas of the Gatun, Bowden, and the Gurabo and Cercado Fm, but containing Orthaulax, which is not recorded in beds younger than the Chipola Fm of Florida, older than the above units. It is also present in the Baitoa Fm of the Dominican Republic. Maury (1924) therefore considered the fauna to be of Early Miocene age. Also shows close affinities to the Aquitanian srafe of France. Maury correlates this unit to the Chipola Fm of Florida and the Aquitanian of France. This was the lowest unit yet identified in the Neogene of Brazil.

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, shelly/skeletal, gray limestone and lithified, sideritic, shelly/skeletal, brown limestone

• No environmental data reported.

• Fossiliferous limestone exhibits two beds, a grayish or light buff bed, a leached limestone or coquina composed of broken shells loosely cemented together and later calcified, while the other is a deeper color due to infiltration of limonite. Collection is believed to be from the lighter limestone unit.

Size class: macrofossils

Preservation: cast, mold/impression

Collection methods: quarrying,

• Artificial casts of the external molds were made. Collected by F. de Carvalho for G. de Campos of the Brazil Geological Survey. Types are reposited at the Museum of the Brazil Geological Survey.

Primary reference: C. J. Maury. 1924. Fosseis Terciarios Do Brazil. Servico Geologico E Mineralogico Do Brazil Monographia 49 [A. Miller/A. Hendy/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60979: authorized by Austin Hendy, entered by Austin Hendy on 28.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Fairly lengthy list, but possibly not exhaustive given the quality of the fauna. The nomenclature is antiquated, though has species-resolution assignments; identifications by Maury who had extensive knowledge of circum-Caribbean faunas.

Show authors, comments, and common names

Gymnolaemata
Cheilostomata - Lunulitidae	Lunulites pileolus Lunulites pileolus
Cheilostomata - Microporidae	Cupularia canariensis Cupularia canariensis Busk 1859
Gastropoda
Opisthobranchia - Umbraculidae	Umbraculum derbyi n. sp. Umbraculum derbyi n. sp. snail
Opisthobranchia - Retusidae	Retusa (Cylichnina) arcana n. sp. Retusa (Cylichnina) arcana n. sp. snail Resembles: R. decapitata (Chipola)
Opisthobranchia - Cylichnidae	Scaphander paraensis n. sp. Scaphander paraensis n. sp. snail
Heterostropha - Architectonicidae	"Solarium granulatum" = Architectonica nobilis, "Solarium intraornatum" = Architectonica nobilis "Solarium granulatum" = Architectonica nobilis Röding 1798 sundial "Solarium intraornatum" = Architectonica nobilis Röding 1798 sundial Resembles: S. quadroseriatim
Neotaenioglossa - Calyptraeidae	Crucibulum faustum, "Calyptraea cf. aperta" = Calyptraea (Trochita) aperta, Calyptraea cf. centralis Crucibulum faustum slipper shell "Calyptraea cf. aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell Calyptraea cf. centralis Conrad 1841 slipper shell
Neogastropoda - Conidae	Conus conditorius, Conus whitei n. sp., Conus longesperatus n. sp., Conus sp. Conus conditorius cone shell Resembles: C. planiceps (Chipola) Conus whitei n. sp. cone shell Conus longesperatus n. sp. cone shell Conus sp. Linnaeus 1758 cone shell
Neogastropoda - Terebridae	Terebra denotans n. sp., Terebra peramabilis n. sp., Terebra paraensis n. sp., "Terebra clethra n. sp." = Strioterebrum clethra Terebra denotans n. sp. auger snail Resembles: T. wolfgangi, T. berlinerae, and T. cancellata Terebra peramabilis n. sp. auger snail Resembles: T. inaequalis, T. haitensis, and T. spirifera Terebra paraensis n. sp. auger snail Resembles: T. haitensis, T. spirifera, and T. gemmulata "Terebra clethra n. sp." = Strioterebrum clethra Maury 1925 auger snail
Neogastropoda - Drilliidae	"Drillia consors" = Hindsiclava consors, Drillia pirabica n. sp., Drillia crandalli n. sp. "Drillia consors" = Hindsiclava consors Sowerby 1850 snail Includes subspecies: D. consors pennae; resembles: D. militaris, D. alesiodata. Drillia pirabica n. sp. snail Resembles: D. henekeni, D. maura, and D. incrassata` Drillia crandalli n. sp. snail
Neogastropoda - Turridae	"Pleurotoma barretti" = Polystira barretti¹, "Surcula (Pleurofusia) camposi n. sp." = Pleurofusia "Pleurotoma barretti" = Polystira barretti¹ Guppy 1866 turrid Subspecies: T. albida paraensis; in the pool of subspecies including: virgo, tellea, antillarum, haitensis, and barretti "Surcula (Pleurofusia) camposi n. sp." = Pleurofusia turrid Resembles: T. (P.) servata
Neogastropoda - Nassariidae	"Alectrion praetrivittata n. sp." = Nassarius (Alectrion), "Alectrion priraboca n. sp." = Nassarius (Alectrion) "Alectrion praetrivittata n. sp." = Nassarius (Alectrion) snail Resembles: A. trivittata (Rec.) and A. trivittatoides "Alectrion priraboca n. sp." = Nassarius (Alectrion) snail
Neogastropoda - Buccinidae	Siphonalia harrisi n. sp., Colubraria paraensis n. sp., "Phos fictilis n. sp." = Antillophos fictilis Siphonalia harrisi n. sp. true whelk Colubraria paraensis n. sp. true whelk Resembles: C. testacea, C. lanceolata, and C. siphonata "Phos fictilis n. sp." = Antillophos fictilis Maury 1934 true whelk Resembles: P. fasciolatus (Mio., Antilles)
Neogastropoda - Fasciolariidae	Fasciolaria restituta n. sp. Fasciolaria restituta n. sp. tulip snail Resembles: F. gigantea (Rec.)
Neogastropoda - Melongenidae	Melongena sp. Melongena sp. Schumacher 1817 snail
Neogastropoda - Cancellariidae	Cancellaria hartti n. sp., Cancellaria pirabensis n. sp., Cancellaria euclethra n. sp., Cancellaria praeindentata n. sp., Cancellaria subtilicancellata n. sp. Cancellaria hartti n. sp. snail Resembles: C. barretti (Dom. Rep.), and C. reticulata (Rec.) Cancellaria pirabensis n. sp. snail Resembles: C. conradiana Cancellaria euclethra n. sp. snail Resembles: C. epistomifera (Dom. Rep.) Cancellaria praeindentata n. sp. snail Resembles: C. indentata (Rec., Pan.) Cancellaria subtilicancellata n. sp. snail Resembles: C. guppyi (Dom. Rep.)
Neogastropoda - Muricidae	"Trophon (Boreotrophon) tropica n. sp." = Boreotrophon, "Murex messorius" = Vokesimurex messorius, "Murex pennae n. sp." = Murex (Haustellum) pennae, "Murex toreia n. sp." = Murex (Murex) toreia, "Murex cf. yaquensis" = Chicoreus (Siratus) yaquensis, "Murex brevifrons" = Chicoreus (Chicoreus) brevifrons "Trophon (Boreotrophon) tropica n. sp." = Boreotrophon murex snail Resembles: T. lacineatus, and T. lacunellus "Murex messorius" = Vokesimurex messorius Sowerby 1841 murex snail "Murex pennae n. sp." = Murex (Haustellum) pennae Maury 1934 murex snail Similar form to M. messorius "Murex toreia n. sp." = Murex (Murex) toreia Maury 1925 murex snail "Murex cf. yaquensis" = Chicoreus (Siratus) yaquensis Maury 1917 murex snail "Murex brevifrons" = Chicoreus (Chicoreus) brevifrons Lamarck 1822 murex snail
Neogastropoda - Volutidae	"Lyria calligona n. sp." = Voluta calligona, Lyria musicinoides n. sp. "Lyria calligona n. sp." = Voluta calligona Maury 1934 volute Lyria musicinoides n. sp. Maury 1934 volute Resembles: L. musicina (FL)
Neogastropoda - Harpidae	Morum harrisi n. sp. Morum harrisi n. sp. snail Impossible to assign to either Oniscidia or Herculea
Neogastropoda - Marginellidae	Marginella truncata, Marginella acuta, Marginella multiplicata, Marginella crassiplicata, Marginella pirabica n. sp., Marginella paraensis n. sp., Marginella perlatens n. sp. Marginella truncata margin shell Marginella acuta margin shell Marginella multiplicata margin shell Marginella crassiplicata margin shell Marginella pirabica n. sp. margin shell Resembles: M. acuta, and M. willcoxiana Marginella paraensis n. sp. margin shell Resembles: M. aurora (Chipola), and M. cassis (Rec.) Marginella perlatens n. sp. margin shell
Neogastropoda - Mitridae	Mitra senecta Mitra senecta mitre shell Resembles: M. henekeni, and M. longa
Neogastropoda - Olividae	Ancilla (Sparella) mutila, Oliva paraensis n. sp., Oliva pirabica n. sp., Olivella paraensis n. sp., Olivella subperdita n. sp., Olivella calcis n. sp. Ancilla (Sparella) mutila olive snail Resembles: A. ventricosa (NZ) and A. crassa (Red Sea) Oliva paraensis n. sp. olive snail Oliva pirabica n. sp. olive snail Resembles: O. liodes (Chipola), O. gatunensis, O. brevispina, and O. giraudi Olivella paraensis n. sp. olive snail Resembles: O. muticoides, O. canaliculata Olivella subperdita n. sp. olive snail Resembles: O. alabamensis (Claiborne Gp) Olivella calcis n. sp. olive snail Resembles: O. mutica (Rec.)
Neogastropoda - Ancillariidae	Amalda (Amalda) branneri n. sp. Amalda (Amalda) branneri n. sp. snail Resembles: A. cingulata (Aust.), A. tankerville, and A. shepardi (Tampa)
Neogastropoda - Turbinellidae	Vasum cf. haitensis, "Xancus sp." = Turbinella, "Xancus gratus n. sp." = Turbinella gratus, "Xancus brasilianus n. sp." = Turbinella brasilianus Vasum cf. haitensis Sowerby 1850 snail "Xancus sp." = Turbinella Lamarck 1799 snail Resembles: X. oboideus and X. praeovoideus "Xancus gratus n. sp." = Turbinella gratus Maury 1934 snail "Xancus brasilianus n. sp." = Turbinella brasilianus Maury 1934 snail Resembles: X. validus, X. wilsoni, and X. scolymus
Sorbeoconcha - Strombidae	"Strombus cf. gigas" = Lobatus gigas, "Fusus doris" = Rostellaria (Fusus), "Fusus soperi n. sp." = Rostellaria (Fusus), "Fusus baumanni n. sp." = Rostellaria (Fusus), "Strombus cf. aldrichi" = Persististrombus aldrichi "Strombus cf. gigas" = Lobatus gigas Linnaeus 1758 true conch "Fusus doris" = Rostellaria (Fusus) true conch "Fusus soperi n. sp." = Rostellaria (Fusus) true conch "Fusus baumanni n. sp." = Rostellaria (Fusus) true conch Resembles: F. haitensis (Dom. Rep.) "Strombus cf. aldrichi" = Persististrombus aldrichi Dall 1890 true conch Resembles: S. bifrons (Dom. Rep., Jam.)
Sorbeoconcha - Thersiteidae	Orthaulax brasiliensis n. sp. Orthaulax brasiliensis n. sp. Maury 1925 snail Resembles: O. gabbi (Chipola)
Sorbeoconcha - Ficidae	"Pyrula paraensis n. sp." = Ficus paraensis "Pyrula paraensis n. sp." = Ficus paraensis White 1887 fig shell Resembles: P. papyratia, and P. reticulata
Sorbeoconcha - Xenophoridae	Xenophora conchyliophora Xenophora conchyliophora Born 1780 carrier shell Subspecies: X. conchyliophora brasiliensis
Sorbeoconcha - Cypraeidae	Cypraea pennae Cypraea pennae White 1887 cowry
Sorbeoconcha - Cassidae	Sconsia felix n. sp., Phalium paraensis n. sp. Sconsia felix n. sp. Maury 1934 snail Phalium paraensis n. sp. Maury 1934 snail Resembles: C. inflata, and C. granulosa
Sorbeoconcha - Ranellidae	"Simpulum chlorostomoides n. sp." = Monoplex chlorostomoides, "Simpulum infelix n. sp." = Monoplex infelix, "Murex williamsi n. sp." = Monoplex williamsi "Simpulum chlorostomoides n. sp." = Monoplex chlorostomoides Maury 1924 triton shell Resembles: S. chlorostomum (Rec.) "Simpulum infelix n. sp." = Monoplex infelix Maury 1924 triton shell Resembles: S. antillarum cercadicum (Dom. Rep.) "Murex williamsi n. sp." = Monoplex williamsi Maury 1910 triton shell
Sorbeoconcha - Vermetidae	Serpulorbis amazoniana n. sp., Serpulorbis corticescupturata n. sp., "Vermetus (? Petaloconchus) subvarians n. sp." = Petaloconchus Serpulorbis amazoniana n. sp. worm shell Resembles: S. papulosa (Dom. Rep.) Serpulorbis corticescupturata n. sp. worm shell "Vermetus (? Petaloconchus) subvarians n. sp." = Petaloconchus worm shell Resembles: V. varians
Sorbeoconcha - Naticidae	Amauropsis nativitatis n. sp., "Natica (Stigmaulax) sulcata" = Stigmaulax sulcata, Natica eurydice, Lunatia modica, Lunatia lunulata Amauropsis nativitatis n. sp. moon snail "Natica (Stigmaulax) sulcata" = Stigmaulax sulcata Born 1778 moon snail Includes: N. (S.) sulcata paraensis and sulcata cerux Natica eurydice White 1887 moon snail Resembles: N. canrena Lunatia modica moon snail Lunatia lunulata moon snail
Sorbeoconcha - Turritellidae	Mesalia rathburni n. sp., Turritella altiliroides n. sp., Turritella callizona n. sp., Turritella pirabica n. sp., Turritella meunieri n. sp., Turritella paraensis n. sp. Mesalia rathburni n. sp. turret shell Turritella altiliroides n. sp. turret shell Resembles: T. altilirata (Gatun), T, tornata (Ven.), and T. perattenuata (FL) Turritella callizona n. sp. turret shell Resembles: T. altiliroides Turritella pirabica n. sp. turret shell Turritella meunieri n. sp. turret shell Resembles: T. banksii (Rec.) Turritella paraensis n. sp. turret shell Resembles: T. terebriformis (Chipola)
Sorbeoconcha - Cerithiidae	Cerithium pirabicum n. sp., Cerithium pachecoi n. sp., Cerithium gonzagae n. sp., Cerithium leei n. sp., Cerithium calcivelatum n. sp., "Clava williamsi n. sp." = Rhinoclavis Cerithium pirabicum n. sp. cerith snail Resembles: C. nodulosum (Aust., Phil.) Cerithium pachecoi n. sp. cerith snail Cerithium gonzagae n. sp. cerith snail Resembles P. pirabicum Cerithium leei n. sp. cerith snail Cerithium calcivelatum n. sp. cerith snail "Clava williamsi n. sp." = Rhinoclavis cerith snail Resembles: C. plebeia (Dom. Rep.)
Trochoidea - Trochidae	Calliostoma (Eutrochus) derbyi n. sp., Calliostoma pirabicum n. sp., Calliostoma cirrus, Calliostoma retectum, Calliostoma (Eutrochus) decamposi n. sp. Calliostoma (Eutrochus) derbyi n. sp. Maury 1924 top snail Calliostoma pirabicum n. sp. Maury 1924 top snail Calliostoma cirrus White 1887 top snail Calliostoma retectum Maury 1924 top snail Calliostoma (Eutrochus) decamposi n. sp. Maury 1924 top snail
Trochoidea - Turbinidae	Astraea sp. Astraea sp. Röding 1798 snail
Lepetellida - Fissurellidae	"Fissuridea immortalis" = Diodora immortalis, "Fissuridea derbyi n. sp." = Diodora derbyi "Fissuridea immortalis" = Diodora immortalis Maury 1924 snail "Fissuridea derbyi n. sp." = Diodora derbyi Maury 1924 snail Resembles: F. patagonica (Rec.)
Bivalvia
Pectinida - Pectinoidae	Spondylus pinguisculus, "Pecten thalerus n. sp." = Chlamys (Chlamys) thalerus, "Pecten indissolubilis n. sp." = Chlamys (Chlamys) indissolubilis, "Pecten callimorphus n. sp." = Chlamys (Chlamys) callimorphus, Pecten daudeleus n. sp., Pecten thaumastus n. sp., Pecten grapteus n. sp. Spondylus pinguisculus scallop "Pecten thalerus n. sp." = Chlamys (Chlamys) thalerus Maury 1924 scallop "Pecten indissolubilis n. sp." = Chlamys (Chlamys) indissolubilis Maury 1924 scallop "Pecten callimorphus n. sp." = Chlamys (Chlamys) callimorphus Maury 1924 scallop Pecten daudeleus n. sp. scallop Pecten thaumastus n. sp. Maury 1924 scallop Pecten grapteus n. sp. Maury 1924 scallop
Pectinida - Plicatulidae	Plicatula flabellifera n. sp. Plicatula flabellifera n. sp. Maury 1924 scallop Resembles: P. marginata and P. gibbosa
Pectinida - Anomiidae	Anomia simplex Anomia simplex d'Orbigny 1845 jingle
Ostreida - Ostreidae	Ostrea distans, Ostrea procyonis, "Ostrea glucumarides n. sp." = Cubitostrea glucumarides Ostrea distans oyster Ostrea procyonis Maury 1924 oyster "Ostrea glucumarides n. sp." = Cubitostrea glucumarides Maury 1924 oyster
Ostreida - Pteriidae	Pteria serini n. sp. Pteria serini n. sp. pearl oyster
Arcida - Glycymerididae	Glycymeris bineminis, Glycymeris baumanni n. sp., Glycymeris eumita n. sp., Glycymeris linda n. sp., Glycymeris naiadis n. sp., Glycymeris crashleyi n. sp. Glycymeris bineminis clam Glycymeris baumanni n. sp. Maury 1924 clam Glycymeris eumita n. sp. Maury 1924 clam Glycymeris linda n. sp. Maury 1924 clam Glycymeris naiadis n. sp. Maury 1924 clam Resembles: G. acuticostata Glycymeris crashleyi n. sp. Maury 1924 clam
Arcida - Arcidae	"Scapharca henekeni" = Anadara (Sectiarca) henekeni, "Scapharca inaequilateralis" = Anadara (Sectiarca) inaequilateralis, "Scapharca crandalli n. sp." = Scapharca (Cunearca) crandalli, "Scapharca melloi n. sp." = Scapharca (Cunearca) melloi, Scapharca textilicostata, Scapharca paraensis, Scapharca pertenuicostata n. sp., Scapharca "sp. 1", Scapharca "sp. 2", Scapharca "sp. 3", Scapharca "sp. 4", Scapharca vanwinkleae n. sp., Scapharca pinguescens n. sp., Scapharca crashleyi n. sp. "Scapharca henekeni" = Anadara (Sectiarca) henekeni Maury 1917 ark Resembles: S. hypomela, S. lienosa, S. secticosta, and S. halidonta "Scapharca inaequilateralis" = Anadara (Sectiarca) inaequilateralis Maury 1917 ark Resembles: A. gatunensis (Gatun) "Scapharca crandalli n. sp." = Scapharca (Cunearca) crandalli Maury 1924 ark Resembles: S. corcupidonis, S. hispaniolana, and S. riocanensis "Scapharca melloi n. sp." = Scapharca (Cunearca) melloi Maury 1924 ark Resembles: A. transversa, A. improcera, and A. caimitica (Dom. Rep.) Scapharca textilicostata clam Resembles: S. henekeni Scapharca paraensis clam Resembles: filicata (Manzanilla, Trinidad) Scapharca pertenuicostata n. sp. clam Resembles: S. paraensis Scapharca "sp. 1" Gray 1847 clam Scapharca "sp. 2" Gray 1847 clam Scapharca "sp. 3" Gray 1847 clam Resembles: S. guayubinica (Dom. Rep.) Scapharca "sp. 4" Gray 1847 clam Resembles: S. staminata (Olig., FL), S. chiriquiensis, and S. anguillana (Ant., Olig.) Scapharca vanwinkleae n. sp. Maury 1924 clam Resembles: S. crandalli and A. riocanensis Scapharca pinguescens n. sp. Maury 1924 clam Somewhat like Argina Scapharca crashleyi n. sp. Maury 1924 clam Resembles: S. hispaniolana and S. riocanensis
Solenida - Solenidae	Solen (Solena) obliquus Solen (Solena) obliquus Spengler 1794 clam
Pholadida - Corbulidae	Corbula delgada n. sp., Corbula giga n. sp., Corbula pauciornata n. sp., Corbula querida n. sp., Corbula mimosa n. sp., Corbula sp. Corbula delgada n. sp. clam Resembles: C. sarda (Olig., Mio., FL) Corbula giga n. sp. clam Resembles: C. dominicensis Corbula pauciornata n. sp. clam Corbula querida n. sp. clam [Looks like Caryocorbula] Corbula mimosa n. sp. clam [Also looks like Caryocorbula] Corbula sp. Bruguière 1789 clam
Cardiida - Tellinidae	Florimetis sp.², Macoma (Psammacoma) riopirabica n. sp., Tellina celetes n. sp. Florimetis sp.² Olsson and Harbison 1953 tellin clam Allied with: M. intastriata Macoma (Psammacoma) riopirabica n. sp. Maury 1924 tellin clam Resembles: M. holmesii (Mio., NC), and M. brevifrons (Rec.) Tellina celetes n. sp. tellin clam Maybe referrable to Angulus
Cardiida - Solecurtidae	Tagelus whitei n. sp. Tagelus whitei n. sp. clam Resembles: T. gibbus
Cardiida - Semelidae	Semele ferreirae n. sp. Semele ferreirae n. sp. clam
Cardiida - Cardiidae	"Cardium (Laevicardium) serratum" = Laevicardium serratum, Cardium (Trachycardium) philotarium n. sp., "Cardium (Trachycardium) thalassium n. sp." = Agnocardia thalassium, "Cardium (Trachycardium) pessoae n. sp." = Agnocardia pessoae, "Cardium (Fragum) proavitum" = Fragum, "Cardium (Nemocardium) indistinctum" = Nemocardium, "Cardium (Trigoniocardium) cordeliae n. sp." = Trigoniocardia cordeliae, "Cardium (Trachycardium) paraense" = Trachycardium, "Cardium (Trachycardium) sp." = Trachycardium "Cardium (Laevicardium) serratum" = Laevicardium serratum Linnaeus 1758 cockle Cardium (Trachycardium) philotarium n. sp. Maury 1924 cockle "Cardium (Trachycardium) thalassium n. sp." = Agnocardia thalassium Maury 1925 cockle Resembles C. paraense "Cardium (Trachycardium) pessoae n. sp." = Agnocardia pessoae Maury 1925 cockle "Cardium (Fragum) proavitum" = Fragum cockle "Cardium (Nemocardium) indistinctum" = Nemocardium cockle Resembles: C. bicolor (Mauritius) "Cardium (Trigoniocardium) cordeliae n. sp." = Trigoniocardia cordeliae Maury 1924 cockle "Cardium (Trachycardium) paraense" = Trachycardium cockle "Cardium (Trachycardium) sp." = Trachycardium Mörch 1853 cockle Resembles: C. muricatum [Trachycardium]
Cardiida - Chamidae	Chama pannicularia, Chama eudeiela n. sp., Chama sp., Chama callipona n. sp., Echinochama praearcinella n. sp., Echinochama pristina n. sp. Chama pannicularia jewel box Chama eudeiela n. sp. jewel box Chama sp. Linnaeus 1758 jewel box Chama callipona n. sp. Maury 1924 jewel box Resembles: C. macerophylla Echinochama praearcinella n. sp. Maury 1924 jewel box Resembles: E. arcinella Echinochama pristina n. sp. Maury 1924 jewel box Resembles: E. yaquensis (Dom. Rep.)
Cardiida - Veneridae	Callocardia recondita n. sp., Callocardia (Agriopoma) obscurata, Callocardia (Agriopoma) hartti n. sp., "Macrocallista (Paradione) pirabica n. sp." = Pitar (Paradione), "Callocardia (Agriopoma) euglypta n. sp." = Pitar (Pitar) euglyptus, "Pitaria (Lamelliconcha) perarcana n. sp." = Lamelliconcha, "Pitaria (Lamelliconcha) baumanni n. sp." = Lamelliconcha, Antigona (Ventricola) thalestris n. sp., Antigona (Ventricola) sanctaenoctis n. sp., ? Chione cordeliae n. sp., Chione (Chione) thalassopora n. sp., Chione (Chione) paraensis, "Dosinia (Dosinidia) brasiliensis" = Dosinia (Dosinia) delicatissima, Venus prototypa, "Chione (Lirophora) praepaphia n. sp." = Lirophora, "Chione (Lirophora) penthesileae n. sp." = Lirophora, "Chione (Chione) agraria" = Chione (Lirophora) agraria, "Macrocallista (Paradione) maculata" = Macrocallista maculata Callocardia recondita n. sp. venus clam Callocardia (Agriopoma) obscurata venus clam Resembles: C. morrhuana [Pitar?] Callocardia (Agriopoma) hartti n. sp. venus clam "Macrocallista (Paradione) pirabica n. sp." = Pitar (Paradione) venus clam "Callocardia (Agriopoma) euglypta n. sp." = Pitar (Pitar) euglyptus Maury 1925 venus clam Affinities with: C. trigonata (Eoc., AL), and C. hatchetigbeensis, bastropensis and winnensis "Pitaria (Lamelliconcha) perarcana n. sp." = Lamelliconcha venus clam Resembles: P. cricinata "Pitaria (Lamelliconcha) baumanni n. sp." = Lamelliconcha venus clam Referred to: P. planivieta Antigona (Ventricola) thalestris n. sp. venus clam Includes subspecies: A. thalestris amazoniana;resembles: A. (V.) rugatina, and A. blandiana Antigona (Ventricola) sanctaenoctis n. sp. venus clam Approaches: A. blandiana ? Chione cordeliae n. sp. venus clam Only provisionally assigned to Chione Chione (Chione) thalassopora n. sp. venus clam Much like: C. compta (Rec.) Chione (Chione) paraensis White 1887 venus clam Resembles: C. cortinaria, C. cribraria, C. intapurpurea, C. pubera and C. woodwardi "Dosinia (Dosinidia) brasiliensis" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam Resembles: D. chipolana Venus prototypa venus clam Much like: V. campechiensis, and V. mercenaria "Chione (Lirophora) praepaphia n. sp." = Lirophora venus clam Resembles: C. (L.) glyptocyma, burnsii, hendersoni, and paphia "Chione (Lirophora) penthesileae n. sp." = Lirophora venus clam Associated with: C. (L.) praepaphia "Chione (Chione) agraria" = Chione (Lirophora) agraria White 1887 venus clam "Macrocallista (Paradione) maculata" = Macrocallista maculata Linnaeus 1758 venus clam
Cardiida - Mactridae	Mactra defossa n. sp. Mactra defossa n. sp. clam Possiblly in subgenus Mactrotoma
Lucinida - Lucinidae	"Phacoides (Here) glomeramen n. sp." = Linga (Linga) glomeramen, Phacoides (Here) eudaidalus n. sp., Phacoides (Lucinisca) thalassogonus n. sp., "Phacoides (Lucinisca) luciniolae n. sp." = Lucina (Lucinisca), "Phacoides (Lucinisca) fluctivagus n. sp." = Lucina (Lucinisca) fluctivaga, Lucina querida n. sp. "Phacoides (Here) glomeramen n. sp." = Linga (Linga) glomeramen Maury 1924 clam Resembles: P. (L.) podagrinus Phacoides (Here) eudaidalus n. sp. Maury 1924 clam Resembles: P. (H.) glenni (Chipola) Phacoides (Lucinisca) thalassogonus n. sp. Maury 1924 clam "Phacoides (Lucinisca) luciniolae n. sp." = Lucina (Lucinisca) clam Resembles: L. calhounensis (Olig., FL) and L. hoveyi "Phacoides (Lucinisca) fluctivagus n. sp." = Lucina (Lucinisca) fluctivaga Maury 1924 clam Resembles: L. nassula Lucina querida n. sp. Maury 1924 clam Resembles: L. santarosana and L. crysostoma
Carditida - Carditidae	Cardita (Carditamera) manteia n. sp., Venericardia perumbonata, Venericardia pseudowilmotii n. sp., Venericardia thaleia n. sp., Venericardia philotima n. sp., Venericardia perimetra n. sp., Venericardia isaurae n. sp. Cardita (Carditamera) manteia n. sp. Maury 1924 clam Resembles C. (C.) arata amd C. (C.) floridana Venericardia perumbonata clam Venericardia pseudowilmotii n. sp. Maury 1924 clam Resembles: C. wilmotii Venericardia thaleia n. sp. Maury 1924 clam Venericardia philotima n. sp. Maury 1924 clam Resembles: C. wilmotii Venericardia perimetra n. sp. Maury 1924 clam Resembles: V. alticostata (Claiborne) Venericardia isaurae n. sp. Maury 1924 clam
Tritonidea
-	Tritonidea amazonica n. sp., Tritonidea arcana n. sp. Tritonidea amazonica n. sp. Tritonidea arcana n. sp.

¹Hendy et al. 2008; ²Woodring 1982