Other organisms
Main article: List of species described in 2015
Name Novelty Status Authors Age Unit Location Notes Images
Actinella goodwinii[557]

Sp. nov

Valid

Siver et al.

Eocene

Canada

A diatom, a species of Actinella.

Actinella hickeyi[557]

Sp. nov

Valid

Siver et al.

Eocene

Canada

A diatom, a species of Actinella.

Actinella kimberlitica[557]

Sp. nov

Valid

Siver et al.

Eocene

Canada

A diatom, a species of Actinella.

Adeliesphaera[558]

Gen. et sp. nov

Valid

Bijl & Brinkhuis

Early Eocene

Antarctica

A dinoflagellate. The type species is Adeliesphaera ohanlonii.

Annulatubus[559]

Gen. et sp. nov

Valid

Carbone et al.

Ediacaran

Blueflower Formation

Canada

A tubular organism of uncertain phylogenetic placement. The type species is Annulatubus flexuosus.

Caledonicratis[560]

Gen. et sp. nov

Valid

Zapalski & Clarkson

Carboniferous (Viséan)

Gullane Formation

United Kingdom

An organism of uncertain phylogenetic placement; possibly an animal belonging to the cnidarian family Solanderiidae (the possibility considered to be more probable by the authors of its description) or an alga similar to Perissothallus. The type species is Caledonicratis caridum.

Callimothallus semicircularis[561]

Sp. nov

Valid

Singh et al.

Early Eocene

Cambay Shale Formation

India

A fungal thallus similar to thalli of members of Microthyriaceae.

Casparyotorula[562]

Gen. et comb et sp. nov

Valid

Rikkinen, Schmidt & Kettunen in Kettunen et al.

Eocene

Germany
Russia (Kaliningrad Oblast)

A hyphomycete fungus known from Baltic amber and Bitterfeld amber. A new genus for "Torula" globulifera Caspary (1886); genus also contains "Torula" heteromorpha Caspary (1886), as well as the new species Casparyotorula arnoldii.

Circulodinium? laeve[563]

Sp. nov

Valid

Cheng et al.

Eocene

Anjihaihe Formation

China

A dinoflagellate, possibly a species of Circulodinium.

Cyclostephanos nepalensis[564]

Sp. nov

Valid

Hayashi in Hayashi & Tanimura

Pleistocene

Nepal

A diatom, a species of Cyclostephanos.

Cyclostephanos pseudonepalensis[564]

Sp. nov

Valid

Hayashi in Hayashi & Tanimura

Pleistocene

Nepal

A diatom, a species of Cyclostephanos.

Cyclostephanos ramosus[565]

Sp. nov

Valid

Hayashi & Tanimura

Pleistocene

Nepal

A diatom, a species of Cyclostephanos.

Cyclotella paleo-ocellata[566]

Sp. nov

Valid

Vossel & Van de Vijver in Vossel et al.

Holocene

Israel

A diatom. Originally described as a species of Cyclotella; transferred to the genus Lindavia by Nakov et al. (2015).[567]

Dictyosphaera tacita[568]

Sp. nov

Valid

Tang et al.

Tonian

Gouhou Formation

China

An acritarch.

Donskinica[569]

Gen. nov

Valid

Strelnikova & Kozyrenko

A diatom.

Elatera minor[570]

Sp. nov

Valid

Vorob’eva & Sergeev in Vorob’eva, Sergeev & Petrov

Early Mesoproterozoic

Kotuikan Formation

Russia

A probable eukaryotic microorganism of uncertain phylogenetic placement

Eosolena minuta[570]

Sp. nov

Valid

Vorob’eva & Sergeev in Vorob’eva, Sergeev & Petrov

Early Mesoproterozoic

Kotuikan Formation

Russia

A probable eukaryotic microorganism of uncertain phylogenetic placement.

Gigantosphaeridium[571]

Gen. et sp. nov

Valid

Agić, Moczydłowska & Yin

Late Mesoproterozoic

Baicaoping Formation

China

A microfossil belonging to the stem group of Chloroplastida. Genus includes new species G. fibratum.

Haslea antiqua[572]

Sp. nov

Valid

Fenner

Paleocene

Southwestern Pacific Ocean (Campbell Plateau)

A diatom, a species of Haslea.

Hirudiforma[570]

Gen. et 2 sp. nov

Valid

Vorob’eva & Sergeev in Vorob’eva, Sergeev & Petrov

Early Mesoproterozoic

Kotuikan Formation

Russia

A eukaryotic microorganism, possibly a green alga. The type species is H. simmetrica; genus also includes H. lancetica.

Kaiwaradinium abbreviatum[563]

Sp. nov

Valid

Cheng et al.

Eocene

Anjihaihe Formation

China

A dinoflagellate, a species of Kaiwaradinium.

Kuckaraukia[573]

Gen. et sp. nov

Valid

Razumovskiy et al.

Late Vendian

Basa Formation

Russia

An organism of uncertain phylogenetic placement, might be a unitary organism or as a colony of motionless benthic organisms. The type species is Kuckaraukia multituberculata.

Lineaforma[570]

Gen. et sp. nov

Valid

Vorob’eva & Sergeev in Vorob’eva, Sergeev & Petrov

Early Mesoproterozoic

Belt Supergroup
Kotuikan Formation
Roper Group

Australia[574]
Russia
United States[574]

A probable eukaryotic microorganism of uncertain phylogenetic placement. The type species is L. elongata.

Mallomonas schumachii[575]

Sp. nov

Valid

Siver

Eocene

Canada

A synurophyte, a species of Mallomonas.

Matris[576]

Gen. et sp. nov

Du, Wang & Komiya

Ediacaran

Doushantuo Formation

China

An organism of uncertain phylogenetic placement. Its fossil were originally interpreted as a probable sponge gemmules;[576] this interpretation was criticized by Pronzato, Pisera & Manconi (2017), who stated that the fossils resemble some arcellid testate amoebae.[577] Genus includes new species M. gemmuleanalogi.

Meliolinites buxi[578]

Sp. nov

Valid

Ma & Sun in Ma et al.

Oligocene

Ningming Formation

China

A fungus belonging to the family Meliolaceae; a species of Meliolinites.

Notothyrites undulatus[561]

Sp. nov

Valid

Singh et al.

Early Eocene

Cambay Shale Formation

India

A fungal thallus similar to thalli of members of Microthyriaceae.

Oligosphaeropsis[563]

Gen. et 3 sp. nov

Valid

Cheng et al.

Eocene

Anjihaihe Formation

China

A dinoflagellate. The type species is Oligosphaeropsis accreta; genus also contains Oligosphaeropsis complex and Oligosphaeropsis megaprocessa.

Palaeoborrelia[579]

Gen. et sp. nov

Valid

Poinar

Miocene

Dominican Republic

A spirochaete belonging to the family Spirochaetaceae known from Dominican amber. The type species is Palaeoborrelia dominicana.

Palaeoclaviceps[580]

Gen. et sp. nov

Valid

Poinar, Alderman & Wunderlich

Cretaceous (roughly 100 million years ago)

Myanmar

A fungus belonging to the family Clavicipitaceae (a relative of ergots). The type species is Palaeoclaviceps parasiticus.

Palaeorickettsia[581]

Gen. et sp. nov

Valid

Poinar

Early Cretaceous (late Albian)

Myanmar

Probably a member of Rickettsiales. The type species is Palaeorickettsia protera.

Palaeozoosporites[582]

Gen. et sp. nov

Valid

Strullu-Derrien in Strullu-Derrien et al.

Devonian (approximately 407 Mya)

United Kingdom

A chytrid-like (i.e. similar to members of Blastocladiomycota and Chytridiomycota) fungus of uncertain phylogenetic placement. The type species is Palaeozoosporites renaultii.

Rajkanella[583]

Gen. et sp. nov

Valid

Schlagintweit & Rigaud

Late Cretaceous (Cenomanian)

Kosovo

A foraminifer. Genus includes new species R. hottingerinaformis.

Rhoicosphenia gandhii[584]

Sp. nov

Valid

Thomas, Karthick & Kociolek in Thomas, Kociolek & Karthick

Probably Pliocene or Pleistocene

India

A diatom, a species of Rhoicosphenia.

Rhoicosphenia indica[584]

Sp. nov

Valid

Thomas, Karthick & Kociolek in Thomas, Kociolek & Karthick

Probably Pliocene or Pleistocene

India

A diatom, a species of Rhoicosphenia.

Rhoicosphenia patrickae[584]

Sp. nov

Valid

Thomas & Kociolek in Thomas, Kociolek & Karthick

Probably Pliocene or Pleistocene

United States

A diatom, a species of Rhoicosphenia.

Rhoicosphenia reimeri[584]

Sp. nov

Valid

Thomas & Kociolek in Thomas, Kociolek & Karthick

Probably Pliocene or Pleistocene

United States

A diatom, a species of Rhoicosphenia.

Rhyniosarcina[585]

Gen. et sp. nov

Valid

Taylor & Krings

Early Devonian

United Kingdom

A member of Cyanobacteria, probably a member or a relative of Chroococcales. The type species is Rhyniosarcina devonica.

Scepasmatocarpion[586]

Gen. et sp. nov

Valid

Krings & Taylor

Early Devonian

United Kingdom

A fungus of uncertain phylogenetic placement. The type species is Scepasmatocarpion fenestrulatum.

Sekwitubulus[559]

Gen. et sp. nov

Valid

Carbone et al.

Ediacaran

Blueflower Formation

Canada

A tubular organism of uncertain phylogenetic placement. The type species is Sekwitubulus annulatus.

Sinotubulites hexagonus[587]

Sp. nov

Valid

Cai et al.

Late Ediacaran

Dengying Formation

China

A tubular organism of uncertain phylogenetic placement, of probable animal affinities; a species of Sinotubulites.

Sinotubulites pentacarinalis[587]

Sp. nov

Valid

Cai et al.

Late Ediacaran

Dengying Formation

China

A tubular organism of uncertain phylogenetic placement, of probable animal affinities; a species of Sinotubulites.

Sinotubulites triangularis[587]

Sp. nov

Valid

Cai et al.

Late Ediacaran

Dengying Formation

China

A tubular organism of uncertain phylogenetic placement, of probable animal affinities; a species of Sinotubulites.

Spiniferites adnatus latispinus[563]

Subsp. nov

Valid

Cheng et al.

Eocene

Anjihaihe Formation

China

A dinoflagellate, a subspecies of Spiniferites adnatus.

Squamosphaera[568]

Gen. et comb. nov

Valid

Tang et al.

Mesoproterozoic and Neoproterozoic

Gouhou Formation
Kwagunt Formation
Zigazino-Komarovsk Beds

Australia[574]
China
Russia
United States
An acritarch. The type species is "Satka" colonialica Jankauskas (1979).

Tertiarius juriljii[588]

Sp. nov

Valid

Ognjanova-Rumenova et al.

Pliocene

Vitacevo Formation

Macedonia

A diatom; a species of Tertiarius.

Tertiarius mariovensis[588]

Sp. nov

Valid

Ognjanova-Rumenova et al.

Pliocene

Vitacevo Formation

Macedonia

A diatom; a species of Tertiarius.

Tianshandinium[563]

Gen. et sp. nov

Valid

Cheng et al.

Eocene

Anjihaihe Formation

China

A dinoflagellate. The type species is Tianshandinium biconicum.

Turbiosphaera guersteinae[558]

Sp. nov

Valid

Bijl & Brinkhuis

Early Eocene

Antarctica

A dinoflagellate, a species of Turbiosphaera.