Genus

Costatilobus Playford, 1977

Selection of related publications

Uutela, A., Tynni, R. 1991. Ordovician acritarchs from the Rapla borehole, Estonia. Geological Survey of Finland. Bulletin 353, 1-135.

Uutela, A. 1983. Ordovikisia konodontteja Lounais-Suomen kalkkikivistä. Geologi 35, 9-10, 140-141.

List of species

1. Costatilobus bulbosus Uutela et Tynni, 1991 | Volkhov Stage→Kukruse Stage

2. Costatilobus grandispinosus Uutela et Tynni, 1991 | Keila Stage→Nabala Stage

3. Costatilobus trifidus Uutela et Tynni, 1991 | Keila Stage

Classification

Organism group	Biota
	Protista
	Acritarcha
Supergenus	Acanthosphaera
Genus	Acanthodiacrodium
	Acrosphaeridium
	Actinotodissus
	Actipillion
	Akomachra
	Ambiguaspora
	Ammonidium
	Aranidium
	Arbusculidium
	Archaeodiscina
	Archaeopsophosphaera
	Archaeosacculina
	Arcosphaeridium
	Aremoricanium
	Arkonia
	Aryballomorpha
	Asteridium
	Athabascaella
	Axisphaeridium
	Bacisphaeridium
	Baltisphaeridium
	Buchinia
	Buedingiisphaeridium
	Caldariola
	Calyxiella
	Carinatosphaeridium
	Celtiberium
	Ceratophyton
	Cheleutochroa
	Chlamydosphaeridia
	Comasphaeridium
	Coronitesta
	Coryphidium
	Costatilobus
Species	bulbosus
	grandispinosus
	trifidus
Genus	Cristallinium
	Cycloposphaeridium
	Cymatiogalea
	Cymatiosphaera
	Dactylofusa
	Dasydiacrodium
	Dateriocradus
	Deunffia
	Dicommopalla
	Dictyosphaeridium
	Dictyotidium
	Diexallophasis
	Dilatisphaera
	Domasia
	Dominopolia
	Dorsennidium
	Elektroriskos
	Elenia
	Eliasum
	Estiastra
	Evittia
	Excultibrachium
	Ferromia
	Filisphaeridium
	Fimbriaglomerella
	Florisphaeridium
	Globosphaeridium
	Goniosphaeridium
	Gorgonisphaeridium
	Granomarginata
	Gyalorhethium
	Hapsidopalla
	Heliosphaeridium
	Helosphaeridium
	Impluviculus
	Izhoria
	Joehvisphaera
	Kildinella
	Kundasphaera
	Labyrinthosphaeridium
	Lacunosphaeridium
	Ladogella
	Leiofusa
	Leiomarginata
	Leiosphaeridia
	Leiovalia
	Liepaina
	Liliosphaeridium
	Loeblichia
	Lophominuscula
	Lophosphaeridium
	Lunulidia
	Lusatia
	Margoporina
	Metaleiofusa
	Micrhystridium
	Microconcentrica
	Multiplicisphaeridium
	Nanocyclopia
	Navifusa
	Nellia
	Nexosarium
	Nodosus
	Nothooidium
	Ooidium
	Oppilatala
	Ordovicidium
	Orthosphaeridium
	Ovulum
	Pachysphaeridium
	Palaeocladophora
	Palaeomonostroma
	Papillomembrana
	Parmasphaeridium
	Passalosphaera
	Petaloferidium
	Peteinosphaeridium
	Pheoclosterium
	Pirea
	Podolina
	Poikilofusa
	Polyancistrodorus
	Polyedryxium
	Polygonium
	Primoflagella
	Primophlagella
	Priscogaleata
	Priscotheca
	Protosphaeridium
	Pseudotasmanites
	Pterospermella
	Pterospermopsimorpha
	Pterospermopsis
	Pulvinosphaeridium
	Raphesphaera
	Raplasphaera
	Revinotesta
	Rhopaliophora
	Sacculidium
	Saharidia
	Salopidium
	Schismatosphaeridium
	Schizodiacrodium
	Skiagia
	Solisphaeridium
	Spumiosa
	Stellechinatum
	Stelliferidium
	Stelomorpha
	Stictosoma
	Striatostellula
	Striatotheca
	Synsphaeridium
	Taeniosphaeridium
	Tasmanites
	Teophipolia
	Timofeevia
	Tranvikium
	Trichosphaeridium
	Trunculumarium
	Tuberculum
	Tunisphaeridium
	Tylotopalla
	Tynnia
	Veryhachium
	Vesiculosphaera
	Villosacapsula
	Visbysphaera
	Vogtlandia
	Volkovia
	Vulcanisphaera
	Winwaloeusia
	Zinkovioides
Subgenus	Brochopsophosphaera
	Eupoikilofusa
Species	Ampullula
	Leiodiscina
unranked	Chalaziosphaeridium
	Retisphaeridium