2020 in paleomalacology
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This list 2020 in paleomalacology is a list of new taxa of ammonites and other fossil cephalopods, as well as fossil gastropods, bivalves and other molluscs that are scheduled to be described during the year 2020, as well as other significant discoveries and events related to molluscan paleontology that are scheduled to occur in the year 2020.
Ammonites
New taxa
| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Angolaites elegans[1] | Sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek |  United States(  Texas)
|
A member of the family Brancoceratidae. | |
|
Sp. nov |
In press |
Cope & Etches |
||||||
|
Sp. nov |
Valid |
Jattiot, Bucher & Brayard |
||||||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Binneyitidae. |
|||||
| ?Bouleiceras betetensis[5] | Sp. nov | In press | Martínez & Joral | Early Jurassic (Toarcian) |  Spain
|
A member of the family Hildoceratidae. | ||
| Bouleiceras ibericum[5] | Sp. nov | In press | Martínez & Joral | Early Jurassic (Toarcian) | Spain
|
A member of the family Hildoceratidae. | ||
| Cagliceras baldii[6] | Sp. nov | Valid | Kovács, Dunai & Evanics | Early Jurassic (Toarcian) |  Hungary
|
A member of the family Erycitidae. | ||
| Cagliceras wegeneri[6] | Sp. nov | Valid | Kovács, Dunai & Evanics | Early Jurassic (Toarcian) | Hungary
|
A member of the family Erycitidae. | ||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Turrilitidae. |
|||||
|
Sp. nov |
Valid |
Jattiot, Bucher & Brayard |
||||||
|
Sp. nov |
Valid |
Amédro & Châtelier in Amédro et al. |
||||||
|
Sp. nov |
Valid |
Amédro & Châtelier in Amédro et al. |
||||||
|
Sp. nov |
Valid |
Amédro & Châtelier in Amédro et al. |
||||||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Brancoceratidae. |
|||||
|
Gen. et comb. nov |
Valid |
Kennedy |
A member of the family Acanthoceratidae belonging to the subfamily Mantelliceratinae. The type species is "Ammonites" jubae Coquand (1880); genus also includes "Ammonites" villei Coquand (1862). |
|||||
|
Gen. et sp. nov |
Valid |
Kennedy |
A member of the family Turrilitidae. The type species is C. tenuicostatus. |
|||||
| Elobiceras (Craginites) simplex[1] | Sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek | United States ( Texas)
|
A member of the family Brancoceratidae. | |
| Elobiceras (Craginites) sparcicostatum[1] | Sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek | United States ( Texas)
|
A member of the family Brancoceratidae. | |
|
Sp. nov |
Valid |
Jattiot, Bucher & Brayard |
||||||
|
Sp. nov |
Valid |
Korn et al. |
||||||
|
Goniatites zhankurganensis[8] |
Sp. nov |
Valid |
Korn et al. |
Carboniferous (Viséan) |
Baktysai Formation |
|||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Acanthoceratidae. |
|||||
|
Sp. nov |
Valid |
Mitta & Stupachenko |
A member of the family Aspidoceratidae. |
|||||
|
Gen. et sp. et comb. nov |
In press |
Bert, Bersac & Canut |
A member of the family Neocomitidae. The type species is H. aguirreurretae; genus also includes H. ploszkiewiczi (Riccardi and Aguirre-Urreta, 1989) and H. varicostatus (Riccardi and Aguirre-Urreta, 1989). |
|||||
|
Sp. nov |
In press |
Korn & Wang in Korn et al. |
||||||
|
Gen. et comb. nov |
In press |
Zakharov & Rogov |
A new genus for "Groebericeras" baylei Imlay & Jones. |
|||||
|
Gen. et sp. nov |
Valid |
Schweigert & Schlampp |
A member of the family Aspidoceratidae. The type species is H. endressi; genus might also include "Aspidoceras" acanthomphalum Zittel (1870). |
|||||
|
Sp. nov |
Valid |
Korn |
||||||
| Lasswitzia[1] | Gen. et comb. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek Formation | United States ( Texas)
|
A member of the family Brancoceratidae. The type species is "Schloenbachia austinensis" Roemer var. minima Lasswitz (1904) (raised to the rank of a separate species Lasswitzia minima). | |
|
Gen. et comb. nov |
In press |
Bert, Bersac & Canut |
A member of Ancyloceratoidea belonging to the new family Lenicostitidae. The type species is "Hemihoplites" rusticus Vermeulen (1996). |
|||||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Flickiidae. |
|||||
| Mittaites[15] | Gen. et comb. nov | In press | Frau et al. | Early Cretaceous (Berriasian) |  Russia
|
The type species is "Mazenoticeras" ceccai. | ||
| Mortoniceratoides elegans[1] | Sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Kiamichi | United States ( Texas)
|
A member of the family Brancoceratidae. | |
|
Sp. nov |
Valid |
Korn |
Devonian (Famennian) |
A member of the family Kosmoclymeniidae. |
||||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Lyelliceratidae. |
|||||
|
Gen. et comb. nov |
Valid |
Jattiot, Gris & Trincal |
A new genus for "Peronoceras" eucosmum Lippi Boncambi (1947). |
|||||
| Paracraginites[1] | Gen. et sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek | United States ( Texas)
|
A member of the family Brancoceratidae. The type species is P. conlini. | |
|
Sp. nov |
Valid |
Jattiot, Bucher & Brayard |
||||||
| Pervinquieria (Deiradoceras) serpentiforme[1] | Sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek | United States ( Texas)
|
A member of the family Brancoceratidae. | |
| Pervinquieria (Pervinquieria) asper[1] | Sp. nov | Valid | Kennedy in Gale & Kennedy | Early Cretaceous (Albian) | Lower Duck Creek | United States ( Texas)
|
A member of the family Brancoceratidae. | |
|
Sp. nov |
Valid |
Kennedy |
A member of the family Acanthoceratidae. |
|||||
|
Sp. nov |
Valid |
Bischof & Lehmann |
||||||
|
Sp. nov |
Valid |
Amédro & Châtelier in Amédro et al. |
||||||
|
Gen. nov |
Valid |
Jattiot, Bucher & Brayard |
||||||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Scaphitidae. |
|||||
|
Sp. nov |
Valid |
Kennedy |
A member of the family Lyelliceratidae. |
|||||
|
Sp. nov |
Valid |
Jattiot, Bucher & Brayard |
General research
- A study aiming to determine the drag force experienced by a wide range of ammonite shell shapes is published by Hebdon, Ritterbush & Choi (2020).[18]
- A study on the abundance and size distribution of small specimens of Baculites and Hoploscaphites at eight cold methane seep sites in the Upper Cretaceous Pierre Shale (South Dakota, United States) is published by Rowe et al. (2020), who interpret their findings as indicating that newly hatched ammonites lived in close proximity to seep fluids emerging at the sediment-water interface and the associated microbial food web.[19]
- A study on changes of hydrostatic properties of three species of Didymoceras during their ontogeny is published by Peterman et al. (2020).[20]
Other cephalopods
New taxa
| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Sp. nov |
In press |
Aubrechtová & Meidla |
||||||
|
Ancistroceras vahikuelaensis[21] |
Sp. nov |
In press |
Aubrechtová & Meidla |
Ordovician |
||||
| Chromatoceras[22] | Gen. et comb. nov | Valid | Turek & Manda | Silurian (Pridoli) | Kopanina |  Czech Republic
|
A member of Oncocerida belonging to the family Oonoceratidae. The type species is "Cyrtoceras" veteranum Barrande (1866); genus also includes "Cyrtoceras" constringens Barrande (1866). | |
|
Sp. nov |
In press |
Aubrechtová & Meidla |
Ordovician |
|||||
|
Gen. et sp. nov |
In press |
Ebbestad et al. |
Late Ordovician |
Upper Tiouririne Formation |
A member of Orthocerida belonging to the family Stereoplasmoceratidae. The type species is T. tiouririnense. |
|||
|
Sp. nov |
In press |
Ebbestad et al. |
Late Ordovician |
Upper Ktaoua Formation |
A member of Actinocerida belonging to the family Wademidae. |
General research
- A study aiming to determine whether the development of chamber volume in fossil cephalopod phragmocones conveys information about their physiology is published by Tajika et al. (2020), who evaluate the implications of their findings for the knowledge of the ecology and extinction selectivity of fossil cephalopods.[24]
- A study on the spatial distribution of Givetian oncocerid fossils from the Hamar Laghdad ridge (eastern Anti-Atlas, Morocco), evaluating its implications for the knowledge of the life cycle of these cephalopods, is published by Pohle et al. (2020).[25]
- A study on the reproductive strategies of fossil coleoids, based on data from shells of belemnoids, spirulids and sepiids, is published by Fuchs et al. (2020).[26]
- A specimen of Plesioteuthis preserved with an associated tooth of a pterosaur is reported from the Upper Jurassic Altmühltal Formation (Germany) by Hoffmann et al. (2020), who evaluate the implications of this finding for the knowledge of the likely habitat of Plesioteuthis.[27]
Gastropods
New taxa
| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
| Alanstukella[28] | Gen. et comb. nov | Valid | Mazaev | Carboniferous (Kasimovian) to Permian (Sakmarian) | Russia
|
A member of the family Trochonematidae. The type species is A. rossica (Stuckenberg, 1905). | ||
|
Gen. et comb. nov |
In press |
Ebbestad et al. |
Late Ordovician |
Upper Ktaoua Formation |
A member of the family Gosseletinidae belonging to the subfamily Euryzoninae. The type species is "Lophospira" debganensis Horný (1997). |
|||
|
Gen. et sp. nov |
Valid |
Ketwetsuriya et al. |
Genus includes new species A. reticulata. |
|||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Sp. nov |
Valid |
Bullis et al. |
A species of Assiminea. |
|||||
|
Gen. et sp. nov |
Valid |
Balashov & Perkovsky |
A member of the family Gastrocoptidae. The type species is B. gusakovi. |
|||||
|
Sp. nov |
Valid |
Mandic, Harzhauser & Neubauer |
Middle Miocene |
|||||
| Belgrandiella? nichterli[33] | Sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
Possibly a species of Belgrandiella. | ||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Gen. et sp. nov |
Valid |
Juárez-Ruiz, Matamales-Andreu & Kadolsky |
Early Oligocene |
A member of the family Vidaliellidae. Genus includes new species C. oliveri. |
||||
| Calogoniodiscus pyrenaicus[33] | Sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
|
Sp. nov |
Valid |
Garvie in Garvie, Goedert & Janssen |
||||||
| Chilodonta tricostatula[36] | Sp. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation |  Switzerland
|
A species of Chilodonta. | |
|
Sp. nov |
In press |
Nosowska |
Middle Miocene |
A species of Clanculus. |
||||
|
Sp. nov |
Valid |
Goedert & Janssen in Garvie, Goedert & Janssen |
A species of Clio. |
|||||
| Cochleochilus? spiralocostatus[36] | Sp. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation | Switzerland
|
Possibly a member of the family Ataphridae. | |
|
Sp. nov |
Valid |
Garvie in Garvie, Goedert & Janssen |
||||||
| Emarginula rara[36] | Sp. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation | Switzerland
|
A species of Emarginula. | |
| Enneopupa priabonica[33] | Sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
| Eohispania[33] | Gen. et sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
Genus includes new species E. dominicii. | ||
|
Gen. et sp. nov |
Valid |
Bullis et al. |
Genus includes new species E. kachin. |
|||||
|
Nom. nov |
Valid |
Pacaud |
Early Paleocene |
A species of Fusulculus; a replacement name for Epalxis ? rosenkrantzi Hansen (2019). |
||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
| Headonia[33] | Gen. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
|
Sp. nov |
Valid |
Garvie in Garvie, Goedert & Janssen |
||||||
| Helvetataphrus[36] | Gen. et comb. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation |  France Switzerland
|
A member of the family Ataphridae. The type species is "Turbo" subrugosus Buvignier (1852). | |
|
Sp. nov |
Valid |
Matsuoka & Hirano |
A species of Heterogen. |
|||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Sp. nov |
Valid |
Lozouet, Cahuzac & Charles |
A member of the family Modulidae. |
|||||
| Katosira ? bicarinata[41] | Sp. nov | Valid | Ferrari, Little & Atkinson | Early Jurassic (Toarcian) | Blea Wyke Sandstone Formation |  United Kingdom
|
A member of the family Zygopleuridae. | |
| Laminifera nannodes[33] | Sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
| Laxecostula[33] | Gen. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
|
Sp. nov |
Valid |
Garvie & Janssen in Garvie, Goedert & Janssen |
A species of Limacina. |
|||||
|
Sp. nov |
Valid |
Garvie & Janssen in Garvie, Goedert & Janssen |
A species of Limacina. |
|||||
|
Sp. nov |
Valid |
Garvie in Garvie, Goedert & Janssen |
A species of Limacina. |
|||||
| Limacina yadongensis[42] | Sp. nov | Valid | Li et al. | Early Eocene | Zhepure Formation |  China
|
A species of Limacina. | |
|
Sp. nov |
In press |
Ebbestad et al. |
Late Ordovician |
Upper Ktaoua Formation |
A member of the family Lophospiridae. |
|||
|
Gen. et sp. nov |
Valid |
Gründel, Hostettler & Menkveld-Gfeller |
Jurassic |
Europe |
A member of the family Brachytrematidae. Genus includes new species L. liriola. |
|||
|
Sp. nov |
Valid |
Pacaud & Gómez |
A member of the family Ovulidae belonging to the subfamily Pediculariinae. |
|||||
|
Gen. et sp. nov |
Valid |
Bullis et al. |
Genus includes new species M. electricus. |
|||||
|
Sp. nov |
Valid |
Lozouet, Cahuzac & Charles |
A species of Modulus. |
|||||
| Neniopsilla[33] | Gen. et sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
Genus includes new species N. amoena. | ||
|
Sp. nov |
Valid |
Fehse & Vicián |
Late Miocene |
A species of Niveria. |
||||
|
Sp. nov |
Valid |
Fehse & Vicián |
Late Miocene |
A species of Niveria. |
||||
| Oxfordina[36] | Gen. et comb. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation | Switzerland
|
A member of the family Eucyclidae. The type species is "Trochus" crassicosta Buvignier (1852). | |
|
Gen. et sp. nov |
Valid |
Bullis et al. |
Genus includes new species P. spelomphalos. |
|||||
| Paracraticula? catalaunica[33] | Sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
| Patella staceata[36] | Sp. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation | Switzerland
|
A species of Patella. | |
|
Gen. et sp. nov |
Valid |
Bullis et al. |
Genus includes new species P. kyrtostoma. |
|||||
|
Sp. nov |
In press |
Simões et al. |
Late Paleozoic |
Taciba Formation |
||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Nom. nov |
Valid |
Nielsen & Ampuero |
Early Miocene |
A species of Profundimitra; a replacement name for Mitra martini Philippi (1887). |
||||
|
Sp. nov |
Valid |
Mandic, Harzhauser & Neubauer |
Middle Miocene |
|||||
|
Sp. nov |
Valid |
Neubauer et al. |
A member of the family Hydrobiidae belonging to the subfamily Pyrgulinae. |
|||||
|
Sp. nov |
Valid |
Neubauer et al. |
Miocene |
A member of the family Hydrobiidae belonging to the subfamily Pyrgulinae. |
||||
|
Sp. nov |
Valid |
Neubauer et al. |
Miocene |
A member of the family Hydrobiidae belonging to the subfamily Pyrgulinae. |
||||
| Pseudangaria[36] | Gen. et comb. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation | Switzerland
|
A member of the family Angariidae. The type species is "Delphinula" kobyi De Loriol in De Loriol & Koby (1895). | |
| Pseudotectonica[33] | Gen. et sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
Genus includes new species P. pulchra. | ||
|
Gen. et comb. et sp. nov |
In press |
Ebbestad et al. |
Late Ordovician |
A member of the family Platyceratidae. The type species is "Naticopsis" antiquata Barrande in Perner (1903); genus also includes new species R. baniensis. |
||||
| Rimulopsis torulosus[36] | Sp. nov | Valid | Gründel, Hostettler & Gfeller | Late Jurassic (Oxfordian) | St-Ursanne-Formation | Switzerland
|
A member of the family Fissurellidae. | |
|
Sp. nov |
Valid |
Geiger & Goedert |
Eocene or Oligocene (latest Priabonian or earliest Rupelian) |
Gries Ranch Formation |
A species of Scissurella. |
|||
|
Sp. nov |
Valid |
Gard |
A species of Scutus. |
|||||
|
Sp. nov |
Valid |
Sosso, Bertolaso & Dell’Angelo |
Marne di S. Agata Fossili Formation |
A species of Seguenzia. |
||||
|
Gen. et comb. nov |
Valid |
Juárez-Ruiz, Matamales-Andreu & Kadolsky |
Late Eocene |
A member of the family Vidaliellidae; a new genus for "Ampullaria" selvensis. |
||||
| Steenbergia wohlmuthorum[52] | Sp. nov | Valid | Walther & Groh | Late Pleistocene |  Madeira
|
A member of the family Geomitridae. | ||
| Stephaniphera[53] | Gen. et sp. nov | Valid | Schneider, Kollmann & Pickford | Late Cretaceous | Al-Khodh Formation |  Oman
|
A member of Cerithioidea belonging to the family Hemisinidae. The type species is S. coronata. | |
|
Sp. nov |
Valid |
Haga |
Middle Pleistocene |
A member of the family Caecidae. |
||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
| Striactaenonina elegans[41] | Sp. nov | Valid | Ferrari, Little & Atkinson | Early Jurassic (Toarcian) | Blea Wyke Sandstone Formation | United Kingdom
|
A member of Architectibranchia belonging to the family Tubiferidae. | |
| Subtemenia[53] | Gen. et comb. nov | Valid | Schneider, Kollmann & Pickford | Late Cretaceous | Al-Khodh Formation |  Iran Oman
|
A member of the family Pseudomelaniidae. The type species is "Paryphostoma" morgani Douvillé (1904). | |
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
| Triptychia catalanica[33] | Sp. nov | Valid | Harzhauser et al. | Late Eocene | Spain
|
|||
|
Sp. nov |
Valid |
Kadolsky |
A member of the family Filholiidae. |
|||||
|
Sp. nov |
In press |
Ebbestad et al. |
Late Ordovician |
Lower Second Bani Formation |
A member of the family Bellerophontidae. |
|||
|
Sp. nov |
Valid |
Lozouet, Cahuzac & Charles |
A member of the family Modulidae. |
|||||
|
Sp. nov |
Valid |
Yu |
A species of Truncatellina. |
|||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Sp. nov |
Valid |
Kase et al. |
A species of Turbo. |
|||||
|
Sp. nov |
Valid |
Kase et al. |
A species of Turbo. |
|||||
| Turritelloidea stepheni[41] | Sp. nov | Valid | Ferrari, Little & Atkinson | Early Jurassic (Toarcian) | Blea Wyke Sandstone Formation | United Kingdom
|
A member of the family Gordenellidae. | |
|
Sp. nov |
Valid |
Hawke |
A species of Umbilia. |
|||||
|
Sp. nov |
Valid |
Hawke |
Miocene |
A species of Umbilia. |
||||
| Vermetujanulus[52] | Gen. et sp. nov | Valid | Walther & Groh | Late Pleistocene | Madeira
|
A member of the family Gastrodontidae. Genus includes new species V. boessnecki. | ||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
||||
|
Gen. et sp. nov |
Valid |
Bullis et al. |
Genus includes new species X. lophopleura. |
|||||
|
Sp. nov |
Valid |
Ketwetsuriya et al. |
Permian (Roadian) |
Khao Khad Formation |
Bivalves
New taxa
| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Gen. et comb. et sp. nov |
Valid |
Alvarez & Río |
A member of the family Veneridae. The type species is "Eumarcia" austrolissa Stilwell & Zinsmeister (1992); genus also includes "Venus" arenosa Ortmann (1899), as well as new species A. omega. |
|||||
|
Sp. nov |
In press |
Rodrigues et al. |
A member of the family Bakevelliidae. |
|||||
|
Gen. et sp. nov |
In press |
Da Silva et al. |
Early Cretaceous |
An unionid bivalve with possible hyriid affinities. Genus includes new species A. elliptica. |
||||
|
Gen. et sp. nov |
In press |
Rodrigues et al. |
Early Cretaceous (Aptian) |
Romualdo Formation |
A member of the family Bakevelliidae. Genus includes new species A. musculosa. |
|||
|
Sp. nov |
Valid |
Mandic et al. |
Early Miocene |
A species of Astarte. |
||||
|
Gen. et sp. nov |
Valid |
Da Silva et al. |
A bivalve belonging to the order Unionida and to the group Silesunionoidea. Genus includes new species C. novaolindensis. |
|||||
| Eothyasira[64] | Gen. nov | Valid | Karapunar et al. | Early Jurassic (Pliensbachian) |  Germany
|
|||
| Geloina amithoscutana[53] | Sp. nov | Valid | Schneider, Kollmann & Pickford | Late Cretaceous | Al-Khodh Formation | Oman
|
A member of the family Cyrenidae. | |
| Gyrostrea bogdanovae[65] | Sp. nov | Valid | Kosenko & Metelkin | Early Cretaceous (Hauterivian–Barremian) | Kugusem Formation |  Kazakhstan
|
An oyster. | |
|
Sp. nov |
Valid |
Mandic, Harzhauser & Neubauer |
Middle Miocene |
|||||
|
Sp. nov |
Valid |
Mandic et al. |
Early Miocene |
A species of Lima. |
||||
| Limopsis quenstedti[64] | Nom. nov | Valid | Karapunar et al. | A replacement name for Nucula aurita Quenstedt (1856). | ||||
|
Sp. nov |
Valid |
Powell, Millard & Garcia |
Monterey Formation |
A scallop. |
||||
|
Sp. nov |
Valid |
Matsubara in Matsubara et al. |
A member of the family Malletiidae |
|||||
|
Gen. et comb. nov |
Valid |
Alvarez & Río |
A member of the family Veneridae. The type species is "Eurhomalea" inflata Zinsmeister (1984). |
|||||
|
Gen. et sp. nov |
Valid |
Zakharov in Zakharov et al. |
An unionid bivalve. Genus includes new species M. zverkovi. |
|||||
|
Gen. et sp. nov |
In press |
Da Silva et al. |
Early Cretaceous |
Crato Formation |
A bivalve with possible trigonioidid affinities. Genus includes new species M. bellaradiata. |
|||
|
Sp. nov |
Valid |
Masse & Fenerci-Masse |
||||||
|
Sp. nov |
Valid |
Masse & Fenerci-Masse |
||||||
| Muscatella[53] | Gen. et sp. nov | Valid | Schneider, Kollmann & Pickford | Late Cretaceous | Al-Khodh Formation | Oman
|
A member of the family Cyrenidae. The type species is M. biszczukae. | |
|
Sp. nov |
Valid |
Amano in Amano & Kurita |
Tomikawa Formation |
A member of the family Cuspidariidae. |
||||
|
Sp. nov |
In press |
Díaz Saravia & González |
Santa Elena Formation |
|||||
|
Sp. nov |
Valid |
Toscano & Lazo |
Neuquén Basin |
A bivalve belonging to the family Gryphaeidae. |
||||
| Nicaniella schoberti[64] | Sp. nov | Valid | Karapunar et al. | Early Jurassic (Pliensbachian) | Germany
|
|||
|
Gen. et sp. nov |
Valid |
Pérez & Giachetti |
A member of the family Carditidae. The type species is "Venericardia" cannada Ihering (1907); genus also includes "Cyclocardia" dalek Pérez & del Río (2017). |
|||||
|
Sp. nov |
In press |
Guerrini et al. |
A bivalve belonging to the group Actinodontida and the family Palaeomutelidae. |
|||||
| Paracuspidaria[64] | Gen. nov | Valid | Karapunar et al. | Early Jurassic (Pliensbachian) | Germany
|
|||
|
Sp. nov |
In press |
Díaz Saravia & González |
Carboniferous (Pennsylvanian) |
Santa Elena Formation |
||||
|
Sp. nov |
In press |
Ebbestad et al. |
Late Ordovician |
A bivalve belonging to the family Praenuculidae. |
||||
|
Sp. nov |
In press |
Rojas & Nielsen |
Early Miocene |
Ipún Beds |
A species of Pratulum. |
|||
|
Sp. nov |
In press |
Rojas & Nielsen |
Early Miocene |
A species of Pratulum. |
||||
|
Sp. nov |
In press |
Díaz Saravia & González |
Carboniferous (Pennsylvanian) |
Santa Elena Formation |
||||
| Protocardia broilii[76] | Sp. nov | Valid | Yanin | Early Cretaceous (Berriasian) | Crimean Peninsula | |||
|
Gen. et sp. nov |
In press |
Guerrini et al. |
A bivalve belonging to the group Edmondioidea and the family Pachydomidae. Genus includes new species R. delicata. |
|||||
|
Sp. nov |
Valid |
Zakharov in Zakharov et al. |
Middle Jurassic (Bajocian) |
|||||
|
Retroceramus (?) inopinatus[68] |
Sp. nov |
Valid |
Zakharov in Zakharov et al. |
Middle Jurassic (Bajocian) |
||||
| Rollieria franconica[64] | Sp. nov | Valid | Karapunar et al. | Early Jurassic (Pliensbachian) | Germany
|
|||
| Rollieria goldfussi[64] | Nom. nov | Valid | Karapunar et al. | A replacement name for Nucula subovalis Goldfuss (1837). | ||||
|
Gen. et sp. nov |
Valid |
Rao et al. |
Early Cretaceous (Aptian or Albian) |
|||||
|
Sp. nov |
In press |
Guerrini et al. |
A bivalve belonging to the family Astartidae. |
|||||
|
Sp. nov |
Valid |
Neubauer et al. |
Miocene |
A member of the family Dreissenidae belonging to the subfamily Congeriinae. |
Other mollusks
New taxa
| Name | Novelty | Status | Authors | Age | Type locality | Country | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Sp. nov |
Valid |
Dell'Angelo et al. |
Late Pleistocene |
A chiton, a species of Acanthochitona. |
||||
|
Sp. nov |
Valid |
Smith, Brock & Paterson |
Shannon Formation |
A rostroconch. |
||||
|
Sp. nov |
Valid |
Dell'Angelo et al. |
Late Pleistocene |
A chiton, a species of Lucilina. |
||||
| Qaleruaqia[80] | Gen. et sp. nov | Valid | Peel | Cambrian Stage 4 | Aftenstjernesø Formation |  Greenland
|
A member of the family Mattheviidae. The type species is Q. sodermanorum. |
Research
- New specimens of Pelagiella exigua with associated impressions of two clusters of chaetae, providing new information on the anatomy of this taxon, are described from the Cambrian Kinzers Formation (Pennsylvania, United States) by Thomas, Runnegar & Matt (2020), who infer the occurrence of a pair of chaeta-bearing appendages extending from the anterior body wall or foot of the animal (unique among living and extinct molluscs), and interpret Pelagiella as the earliest known stem gastropod.[81]
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