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.
Bivalvia
 Arcida - Arcidae
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 pinguescens n. sp. Maury 1924 clam
Somewhat like Argina
Scapharca vanwinkleae n. sp. Maury 1924 clam
Resembles: S. crandalli and A. riocanensis
Scapharca crashleyi n. sp. Maury 1924 clam
Resembles: S. hispaniolana and S. riocanensis
"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 melloi n. sp." = Scapharca (Cunearca) melloi Maury 1924 ark
Resembles: A. transversa, A. improcera, and A. caimitica (Dom. Rep.)
"Scapharca crandalli n. sp." = Scapharca (Cunearca) crandalli Maury 1924 ark
Resembles: S. corcupidonis, S. hispaniolana, and S. riocanensis
 Arcida - Glycymerididae
Glycymeris baumanni n. sp. Maury 1924 clam
Glycymeris naiadis n. sp. Maury 1924 clam
Resembles: G. acuticostata
Glycymeris eumita n. sp. Maury 1924 clam
Glycymeris crashleyi n. sp. Maury 1924 clam
Glycymeris linda n. sp. Maury 1924 clam
 Pectinida - Pectinoidae
Spondylus pinguisculus, Pecten daudeleus n. sp., Pecten thaumastus n. sp., Pecten grapteus n. sp., "Pecten indissolubilis n. sp." = Chlamys (Chlamys) indissolubilis, "Pecten thalerus n. sp." = Chlamys (Chlamys) thalerus, "Pecten callimorphus n. sp." = Chlamys (Chlamys) callimorphus
Pecten daudeleus n. sp. scallop
Pecten thaumastus n. sp. Maury 1924 scallop
Pecten grapteus n. sp. Maury 1924 scallop
"Pecten indissolubilis n. sp." = Chlamys (Chlamys) indissolubilis Maury 1924 scallop
"Pecten thalerus n. sp." = Chlamys (Chlamys) thalerus Maury 1924 scallop
"Pecten callimorphus n. sp." = Chlamys (Chlamys) callimorphus Maury 1924 scallop
 Pectinida - Plicatulidae
Plicatula flabellifera n. sp. Maury 1924 scallop
Resembles: P. marginata and P. gibbosa
 Pectinida - Anomiidae
Anomia simplex d'Orbigny 1845 jingle
 Ostreida - Ostreidae
"Ostrea glucumarides n. sp." = Cubitostrea glucumarides, Ostrea distans, Ostrea procyonis
"Ostrea glucumarides n. sp." = Cubitostrea glucumarides Maury 1924 oyster
Ostrea procyonis Maury 1924 oyster
 Ostreida - Pteriidae
Pteria serini n. sp. pearl oyster
 Carditida - Carditidae
Venericardia perimetra n. sp. Maury 1924 clam
Resembles: V. alticostata (Claiborne)
Venericardia thaleia n. sp. Maury 1924 clam
Venericardia philotima n. sp. Maury 1924 clam
Resembles: C. wilmotii
Venericardia isaurae n. sp. Maury 1924 clam
Venericardia pseudowilmotii n. sp. Maury 1924 clam
Resembles: C. wilmotii
Cardita (Carditamera) manteia n. sp. Maury 1924 clam
Resembles C. (C.) arata amd C. (C.) floridana
 Pholadida - Corbulidae
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 - Chamidae
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 - Mactridae
Mactra defossa n. sp. clam
Possiblly in subgenus Mactrotoma
 Cardiida - Veneridae
Antigona (Ventricola) thalestris n. sp., Antigona (Ventricola) sanctaenoctis n. sp., Venus prototypa, ? Chione cordeliae n. sp., Chione (Chione) paraensis, Chione (Chione) thalassopora n. sp., "Chione (Lirophora) praepaphia n. sp." = Lirophora, "Chione (Lirophora) penthesileae n. sp." = Lirophora, "Chione (Chione) agraria" = Chione (Lirophora) agraria, "Dosinia (Dosinidia) brasiliensis" = Dosinia (Dosinia) delicatissima, Callocardia recondita n. sp., Callocardia (Agriopoma) obscurata, Callocardia (Agriopoma) hartti n. sp., "Callocardia (Agriopoma) euglypta n. sp." = Pitar (Pitar) euglyptus, "Macrocallista (Paradione) pirabica n. sp." = Pitar (Paradione), "Pitaria (Lamelliconcha) perarcana n. sp." = Lamelliconcha, "Pitaria (Lamelliconcha) baumanni n. sp." = Lamelliconcha, "Macrocallista (Paradione) maculata" = Macrocallista maculata
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
Venus prototypa venus clam
Much like: V. campechiensis, and V. mercenaria
? Chione cordeliae n. sp. venus clam
Only provisionally assigned to Chione
Chione (Chione) paraensis White 1887 venus clam
Resembles: C. cortinaria, C. cribraria, C. intapurpurea, C. pubera and C. woodwardi
Chione (Chione) thalassopora n. sp. venus clam
Much like: C. compta (Rec.)
"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
"Dosinia (Dosinidia) brasiliensis" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam
Resembles: D. chipolana
Callocardia recondita n. sp. venus clam
Callocardia (Agriopoma) obscurata venus clam
Resembles: C. morrhuana [Pitar?]
"Callocardia (Agriopoma) euglypta n. sp." = Pitar (Pitar) euglyptus Maury 1925 venus clam
Affinities with: C. trigonata (Eoc., AL), and C. hatchetigbeensis, bastropensis and winnensis
"Macrocallista (Paradione) pirabica n. sp." = Pitar (Paradione) venus clam
"Pitaria (Lamelliconcha) perarcana n. sp." = Lamelliconcha venus clam
Resembles: P. cricinata
"Pitaria (Lamelliconcha) baumanni n. sp." = Lamelliconcha venus clam
Referred to: P. planivieta
"Macrocallista (Paradione) maculata" = Macrocallista maculata Linnaeus 1758 venus clam
 Cardiida - Solecurtidae
Tagelus whitei n. sp. clam
Resembles: T. gibbus
 Cardiida - Tellinidae
Florimetis sp.2 Olsson and Harbison 1953 tellin clam
Allied with: M. intastriata
Tellina celetes n. sp. tellin clam
Maybe referrable to Angulus
Macoma (Psammacoma) riopirabica n. sp. Maury 1924 tellin clam
Resembles: M. holmesii (Mio., NC), and M. brevifrons (Rec.)
 Cardiida - Semelidae
Semele ferreirae n. sp. clam
 Cardiida - Cardiidae
"Cardium (Nemocardium) indistinctum" = Nemocardium, "Cardium (Trachycardium) paraense" = Trachycardium, "Cardium (Trachycardium) sp." = Trachycardium, "Cardium (Laevicardium) serratum" = Laevicardium serratum, Cardium (Trachycardium) philotarium n. sp., "Cardium (Trachycardium) pessoae n. sp." = Agnocardia pessoae, "Cardium (Trachycardium) thalassium n. sp." = Agnocardia thalassium, "Cardium (Fragum) proavitum" = Fragum, "Cardium (Trigoniocardium) cordeliae n. sp." = Trigoniocardia cordeliae
"Cardium (Nemocardium) indistinctum" = Nemocardium cockle
Resembles: C. bicolor (Mauritius)
"Cardium (Trachycardium) paraense" = Trachycardium cockle
"Cardium (Trachycardium) sp." = Trachycardium Mörch 1853 cockle
Resembles: C. muricatum [Trachycardium]
"Cardium (Laevicardium) serratum" = Laevicardium serratum Linnaeus 1758 cockle
Cardium (Trachycardium) philotarium n. sp. Maury 1924 cockle
"Cardium (Trachycardium) pessoae n. sp." = Agnocardia pessoae Maury 1925 cockle
"Cardium (Trachycardium) thalassium n. sp." = Agnocardia thalassium Maury 1925 cockle
Resembles C. paraense
"Cardium (Fragum) proavitum" = Fragum cockle
"Cardium (Trigoniocardium) cordeliae n. sp." = Trigoniocardia cordeliae Maury 1924 cockle
 Solenida - Solenidae
Solen (Solena) obliquus Spengler 1794 clam
 Lucinida - Lucinidae
Lucina querida n. sp., "Phacoides (Here) glomeramen n. sp." = Linga (Linga) glomeramen, Phacoides (Here) eudaidalus n. sp., Phacoides (Lucinisca) thalassogonus n. sp., "Phacoides (Lucinisca) luciniolae n. sp." = Lucinisca, "Phacoides (Lucinisca) fluctivagus n. sp." = Lucina (Lucinisca) fluctivaga
Lucina querida n. sp. Maury 1924 clam
Resembles: L. santarosana and L. crysostoma
"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." = Lucinisca clam
Resembles: L. calhounensis (Olig., FL) and L. hoveyi
"Phacoides (Lucinisca) fluctivagus n. sp." = Lucina (Lucinisca) fluctivaga Maury 1924 clam
Resembles: L. nassula
Gastropoda
 Opisthobranchia - Umbraculidae
Umbraculum derbyi n. sp. snail
 Opisthobranchia - Retusidae
Retusa (Cylichnina) arcana n. sp. snail
Resembles: R. decapitata (Chipola)
 Opisthobranchia - Cylichnidae
 Neogastropoda - Olividae
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 -
Amalda (Amalda) branneri n. sp. snail
Resembles: A. cingulata (Aust.), A. tankerville, and A. shepardi (Tampa)
 Neogastropoda - Buccinidae
Colubraria paraensis n. sp., "Phos fictilis n. sp." = Antillophos fictilis, Siphonalia harrisi n. sp.
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)
Siphonalia harrisi n. sp. true whelk
 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 - Melongenidae
Melongena sp. Schumacher 1817 snail
 Neogastropoda - Fasciolariidae
Fasciolaria restituta n. sp. tulip snail
Resembles: F. gigantea (Rec.)
 Neogastropoda - Cancellariidae
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 - Mitridae
Mitra senecta mitre shell
Resembles: M. henekeni, and M. longa
 Neogastropoda - Marginellidae
Marginella truncata margin shell
Marginella acuta 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 - 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 - Turbinellidae
Vasum cf. haitensis, "Xancus brasilianus n. sp." = Turbinella brasilianus, "Xancus gratus n. sp." = Turbinella gratus, "Xancus sp." = Turbinella
Vasum cf. haitensis Sowerby 1850 snail
"Xancus brasilianus n. sp." = Turbinella brasilianus Maury 1934 snail
Resembles: X. validus, X. wilsoni, and X. scolymus
"Xancus gratus n. sp." = Turbinella gratus Maury 1934 snail
"Xancus sp." = Turbinella Lamarck 1799 snail
Resembles: X. oboideus and X. praeovoideus
 Neogastropoda - Muricidae
"Trophon (Boreotrophon) tropica n. sp." = Boreotrophon, "Murex brevifrons" = Chicoreus (Chicoreus) brevifrons, "Murex cf. yaquensis" = Chicoreus (Siratus) yaquensis, "Murex messorius" = Vokesimurex messorius, "Murex pennae n. sp." = Murex (Haustellum) pennae, "Murex toreia n. sp." = Murex (Murex) toreia
"Trophon (Boreotrophon) tropica n. sp." = Boreotrophon murex snail
Resembles: T. lacineatus, and T. lacunellus
"Murex brevifrons" = Chicoreus (Chicoreus) brevifrons Lamarck 1822 murex snail
"Murex cf. yaquensis" = Chicoreus (Siratus) yaquensis Maury 1917 murex snail
"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
 Neogastropoda - Harpidae
Morum harrisi n. sp. snail
Impossible to assign to either Oniscidia or Herculea
 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
"Surcula (Pleurofusia) camposi n. sp." = Pleurofusia, "Pleurotoma barretti" = Polystira barretti1
"Surcula (Pleurofusia) camposi n. sp." = Pleurofusia turrid
Resembles: T. (P.) servata
"Pleurotoma barretti" = Polystira barretti1 Guppy 1866 turrid
Subspecies: T. albida paraensis; in the pool of subspecies including: virgo, tellea, antillarum, haitensis, and barretti
 Neogastropoda - Conidae
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 clethra n. sp." = Strioterebrum clethra, Terebra denotans n. sp., Terebra peramabilis n. sp., Terebra paraensis n. sp.
"Terebra clethra n. sp." = Strioterebrum clethra Maury 1925 auger snail
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
 Stromboidea - Strombidae
"Fusus doris" = Rostellaria (Fusus), "Fusus soperi n. sp." = Rostellaria (Fusus), "Fusus baumanni n. sp." = Rostellaria (Fusus), "Strombus cf. gigas" = Lobatus gigas, "Strombus cf. aldrichi" = Persististrombus aldrichi
"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. gigas" = Lobatus gigas Linnaeus 1758 true conch
"Strombus cf. aldrichi" = Persististrombus aldrichi Dall 1890 true conch
Resembles: S. bifrons (Dom. Rep., Jam.)
 Stromboidea - Thersiteidae
Orthaulax brasiliensis n. sp. Maury 1925 snail
Resembles: O. gabbi (Chipola)
 Ficoidea - Ficidae
"Pyrula paraensis n. sp." = Ficus paraensis
"Pyrula paraensis n. sp." = Ficus paraensis White 1887 fig shell
Resembles: P. papyratia, and P. reticulata
 Naticoidea - Naticidae
Lunatia modica moon snail
Lunatia lunulata moon snail
Natica eurydice White 1887 moon snail
Resembles: N. canrena
"Natica (Stigmaulax) sulcata" = Stigmaulax sulcata Born 1778 moon snail
Includes: N. (S.) sulcata paraensis and sulcata cerux
Amauropsis nativitatis n. sp. moon snail
 Cypraeoidea - Cypraeidae
Cypraea pennae White 1887 cowry
 Vermetoidea - 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.)
"Vermetus (? Petaloconchus) subvarians n. sp." = Petaloconchus worm shell
Resembles: V. varians
 Calyptraeoidea - Calyptraeidae
Crucibulum faustum slipper shell
Calyptraea cf. centralis Conrad 1841 slipper shell
"Calyptraea cf. aperta" = Calyptraea (Trochita) aperta Solander 1766 slipper shell
 Xenophoroidea - Xenophoridae
Xenophora conchyliophora Born 1780 carrier shell
Subspecies: X. conchyliophora brasiliensis
 Tonnoidea - Ranellidae
"Murex williamsi n. sp." = Monoplex williamsi, "Simpulum chlorostomoides n. sp." = Monoplex chlorostomoides, "Simpulum infelix n. sp." = Monoplex infelix
"Murex williamsi n. sp." = Monoplex williamsi Maury 1910 triton shell
"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.)
 Tonnoidea - Cassidae
Sconsia felix n. sp. Maury 1934 snail
Phalium paraensis n. sp. Maury 1934 snail
Resembles: C. inflata, and C. granulosa
 Sorbeoconcha - Turritellidae
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.)
 Architectonicoidea - Architectonicidae
"Solarium intraornatum" = Architectonica nobilis, "Solarium granulatum" = Architectonica nobilis
"Solarium intraornatum" = Architectonica nobilis Röding 1798 sundial
Resembles: S. quadroseriatim
"Solarium granulatum" = Architectonica nobilis Röding 1798 sundial
 Turbinoidea - Turbinidae
Astraea sp. Röding 1798 snail
 Fissurelloidea - 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.)
 Trochoidea - Trochidae
Calliostoma (Eutrochus) decamposi n. sp. Maury 1924 top snail
Calliostoma (Eutrochus) derbyi n. sp. Maury 1924 top snail
Calliostoma cirrus White 1887 top snail
Calliostoma retectum Maury 1924 top snail
Calliostoma pirabicum n. sp. Maury 1924 top snail
Gymnolaemata
 Cheilostomata - Calloporidae
 Cheilostomata - Microporidae
Tritonidea
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