2018 in echinoderm paleontology
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Echinoderms
Research
- A study on the morphology of specimens of the niche differentiation could be detected, is published by Morgan (2018).[2]
- A study on the morphological development of the primary large thecal plate in the widest part of the theca of Guizhoueocrinus yui is published online by Wang et al. (2018).[3]
- Fatka, Nohejlová & Lefebvre (2018) interpret enigmatic Drumian echinoderm Lapillocystites fragilis as likely junior synonym of the edrioasteroid species Stromatocystites pentangularis.[4]
- A study on the frequency of breakage and regeneration in the spines of the Middle Devonian camerate Gennaeocrinus and late Paleozoic cladids, as well as a survey of the prevalence of spinosity and infestation by platyceratid gastropods on crinoids during the Paleozoic, is published by Syverson et al. (2018).[5]
- Brachial spines of pirasocrinid cladid crinoids displaying evidence for multiple episodes of breakage and regeneration are described from the Upper Pennsylvanian Ames Member of the Glenshaw Formation (Ohio, United States) by Thomka & Eddy (2018).[6]
- A study on the morphology of arms of fossil and modern crinoids spanning from the Ordovician to the recent, evaluating whether known crinoid clades had more capacity to evolve morphological variation around the time of their origin than later in their evolutionary history, is published by Pimiento et al. (2018).[7]
- A study on the changes of the body sizes of crinoids after the Late Devonian extinction is published by Brom, Salamon & Gorzelak (2018).[8]
- A study on the phylogenetic relationships of disparid crinoids is published by Ausich (2018).[9]
- A study on the microstructure of the stalk of the Triassic crinoid Holocrinus is published by Gorzelak (2018), who interprets his findings as indicating that Holocrinus was likely capable of stalk autotomy.[10]
- A study on the occurrences of post-Paleozoic (Ladinian to Ypresian) crinoids from northeast Spain, on the main stratigraphic and sedimentological features of the sedimentary units that have yielded complete identifiable crinoids, and on their implications for reconstructing the environmental distribution of these crinoids, is published by Zamora et al. (2018).[11]
- 37 new Antarctic and Australian occurrences of Cenozoic isocrinid crinoids, representing nine different species in three genera, are reported by Whittle et al. (2018), who interpret their findings as indicating that isocrinid migration from shallow to deep water during the Mesozoic marine revolution did not occur at the same time all over the world.[12]
- A study on the evolution of Paleozoic starfish is published by Blake (2018), who names new extinct orders Euaxosida, Hadrosida, and Kermasida, as well as new families Lacertasteridae, Permasteridae, and Illusioluididae.[13]
- A study on the evolution of the species richness and morphological diversity of sea urchins in the Jurassic (Toarcian to Tithonian stages) is published by Boivin et al. (2018).[14]
New taxa
| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
|---|---|---|---|---|---|---|---|---|
|
Sp. nov |
Valid |
Thuy, Numberger-Thuy & Jagt |
A brittle star belonging to the order Amphilepidida, the superfamily Ophionereidoidea and the family Amphilimnidae. |
|||||
|
Sp. nov |
Valid |
Stara & Marini |
A sand dollar belonging to the family Astriclypeidae. |
|||||
|
Sp. nov |
Valid |
Thuy, Numberger-Thuy & Jagt |
A brittle star belonging to the family Amphiuridae. |
|||||
|
Sp. nov |
Valid |
Thuy, Numberger-Thuy & Jagt |
A brittle star belonging to the family Amphiuridae, a species of Amphiura. |
|||||
|
Sp. nov |
Valid |
Ausich et al. |
Brechin Lagerstätte |
A disparid crinoid belonging to the family Anomalocrinidae. |
||||
|
Sp. nov |
Valid |
Gladwell |
Ludlow )
|
A stenurid brittle star. |
||||
|
Sp. nov |
Valid |
Smith & Jagt in Jagt et al. |
A sea urchin. |
|||||
|
Sp. nov |
Valid |
Cole et al. |
||||||
|
Sp. nov |
Valid |
Cole et al. |
||||||
|
Sp. nov |
Valid |
Mao et al. |
A crinoid. |
|||||
|
Gen. et sp. nov |
Valid |
Gale |
Late Cretaceous (early Campanian) |
A crinoid. The type species is A. portusadernensis. |
||||
|
Sp. nov |
Valid |
Gladwell |
Ludlow )
|
A stenurid brittle star. |
||||
|
Gen. et sp. nov |
Valid |
Gale |
A starfish belonging to the family Korethrasteridae. The type species is B. fusiliformis |
|||||
|
Sp. nov |
Valid |
Blake, Halligan & Larson |
||||||
|
Sp. nov |
Valid |
Gale in Gale, Sadorf & Jagt |
A crinoid belonging to the group Roveacrinida. |
|||||
|
Gen. et sp. nov |
Valid |
Thuy et al. |
A brittle star belonging to the family Ophiacanthidae. The type species is B. tolis. |
|||||
|
Gen. et sp. nov |
Valid |
Mooi et al. |
Early Miocene |
A sand dollar belonging to the group Scutelliformes. The type species is C. maquedensis |
||||
|
Sp. nov |
Valid |
Donovan in Bogolepova et al. |
Wenlock )
|
A crinoid belonging to the subclass Disparida, to the order Pisocrinida and to the family Pisocrinidae. |
||||
|
Sp. nov |
Valid |
Cole et al. |
||||||
|
Sp. nov |
Valid |
Mihaljević & Rosenblatt |
A species of Clypeaster. |
|||||
|
Sp. nov |
Valid |
Forner Valls & Moreno Bedmar |
A sea urchin. |
|||||
|
Sp. nov |
Valid |
Gale |
Late Cretaceous (early Campanian) |
A crinoid. |
||||
|
Sp. nov |
Valid |
Blake & Koniecki |
Canyon Series, Graford Group |
A starfish belonging to the order Kermasida and to the family Permasteridae. |
||||
|
Sp. nov |
Valid |
Bischof, Hostettler & Menkveld-Gfeller |
St-Ursanne Formation |
A sea urchin belonging to the group Cidaroida and the family Diplocidaridae. Originally described as a species of Diplocidaris, but subsequently made the type species of the separate genus Pseudodiplocidaris.[33] |
||||
|
Gen. et sp. nov |
Valid |
Rozhnov |
Katnikov Beds |
A cladid crinoid related to Crotalocrinites. The type species is E. uralicus |
||||
|
Gen. et 2 sp. et comb. nov |
Valid |
Merle & Roux |
A stalked crinoid, possibly the oldest known member of the family Phrynocrinidae. The type species is E. hessi; genus also includes new species E. bayani, as well as "Bourgueticrinus" didymus Schauroth (1855). |
|||||
|
Sp. nov |
In press |
Botting |
Late Ordovician |
A camerate crinoid. Announced in 2018; the final version of the article naming it is not published yet. |
||||
|
Sp. nov |
Valid |
Smith & Jagt in Jagt et al. |
A sea urchin. |
|||||
|
Gen. et comb. nov |
Valid |
Gale |
A starfish belonging to the family Pterasteridae. Genus includes "Savignaster" trimbachensis Gale (2011). |
|||||
|
Sp. nov |
Valid |
Gale |
Late Cretaceous (early Campanian) |
A crinoid. |
||||
|
Sp. nov |
Valid |
Gale |
Late Cretaceous (early Campanian) |
A crinoid. |
||||
|
Sp. nov |
Valid |
Forner Valls |
Maestrat Basin |
A heart urchin. |
||||
|
Sp. nov |
Valid |
Elattaar |
A heart urchin. |
|||||
|
Sp. nov |
In press |
Botting |
Late Ordovician |
A crinoid belonging to the group Disparida. Announced in 2018; the final version of the article naming it is not published yet. |
||||
|
Gen. et sp. nov |
In press |
Botting |
Late Ordovician |
A crinoid belonging to the group Cladida. Genus includes new species I. praecursor. Announced in 2018; the final version of the article naming it is not published yet. |
||||
|
Sp. nov |
Valid |
Waters & Klug |
A crinoid. |
|||||
|
Gen. et sp. nov |
Valid |
Hagdorn |
Middle Triassic (late Anisian) |
A stem-sea urchin belonging to the family Proterocidaridae. Genus includes new species L. mirabeti. |
||||
|
Gen. et sp. nov |
Valid |
Thuy, Numberger-Thuy & Jagt |
A basket star belonging to the family Asteronychidae. The type species is L. lamentatiofelium. |
|||||
|
Sp. nov |
Valid |
Reich et al. |
A member of Ophiocistioidea belonging to the family Linguaserridae. |
|||||
|
Gen. et sp. nov |
Valid |
Gale |
A starfish belonging to the family Pterasteridae. Genus includes new species L. delsatei |
|||||
|
Sp. nov |
Valid |
Gladwell |
Ludlow )
|
|||||
|
Sp. nov |
Valid |
Gale in Gale, Sadorf & Jagt |
A crinoid belonging to the group Roveacrinida. |
|||||
|
Gen. et sp. nov |
Valid |
Müller et al. |
Early Devonian |
A brittle star belonging to the family Protasteridae. Genus includes new species L. martini, as well as L. schweitzeri. |
||||
|
Sp. nov |
Valid |
Ausich, Rhenberg & Meyer |
A crinoid belonging to the family Batocrinidae. |
|||||
|
Gen. et 2 sp. nov |
Valid |
Thuy & Stöhr |
Early and Middle Jurassic (Toarcian to Bajocian) |
A basket star. The type species is M. alissawhitegluzae; genus also includes M. arcusinimicus. |
||||
|
Sp. nov |
Valid |
Schlüter & Wiese |
A sea urchin. |
|||||
|
Sp. nov |
Valid |
Eagle, Hoskin & Hayward |
||||||
|
Gen. et sp. nov |
Valid |
Lin et al. |
Ordovician (latest Floian-earliest Dapingian) |
A crinoid related to Iocrinus. The type species is M. dawanensis. |
||||
|
Sp. nov |
Valid |
Mao et al. |
A crinoid. |
|||||
|
Gen. et sp. nov |
Valid |
Rousseau & Thuy in Rousseau, Gale & Thuy |
A brittle star belonging to the group Ophiurina and the family Ophiopyrgidae. The type species is O. hoybergia. |
|||||
|
Sp. nov |
Valid |
Thuy, Numberger-Thuy & Jagt |
A brittle star belonging to the order Ophiacanthida and the family Ophiotomidae. |
|||||
|
Gen. et sp. nov |
Valid |
Cole & Toom |
A camerate crinoid belonging to the group Monobathrida. Genus includes new species P. jaanussoni. |
|||||
|
Gen. et sp. nov |
Valid |
Lefebvre & Lerosey-Aubril |
A solutan echinoderm. Genus includes new species P. utahensis. |
|||||
|
Gen. et sp. nov |
In press |
Sumrall & Zamora |
An isorophinid edrioasteroid. Genus includes new species P. tamiformis. Announced in 2018; the final version of the article naming it is not published yet. |
|||||
|
Gen. et sp. nov |
Valid |
Gale in Gale, Sadorf & Jagt |
A crinoid belonging to the group Roveacrinida. Genus includes new species P. sadorfi. |
|||||
|
Sp. nov |
Valid |
Alves et al. |
A sea urchin belonging to the family Faujasiidae. |
|||||
|
Sp. nov |
Valid |
Forner Valls |
Margues del Forcall Formation |
A sea urchin. |
||||
|
Gen. et comb. nov |
Valid |
Mooi et al. |
Early Miocene |
A sand dollar belonging to the group Scutelliformes. The type species is "Abertella" complanata Brito (1981). |
||||
|
Sp. nov |
Valid |
Fouquet, Roney & Wilke |
A sea urchin. |
|||||
|
Gen. et sp. nov |
Valid |
Rousseau & Gale in Rousseau, Gale & Thuy |
A starfish belonging to the family Asteriidae. The type species is P. janusensis. |
|||||
|
Gen. et sp. nov |
Valid |
Cole et al. |
A camerate crinoid belonging to Order Diplobathrida. Genus includes new species P. elegans. |
|||||
|
Gen. et comb. nov |
Valid |
Paul |
A member of Diploporita belonging to the family Aristocystitidae; a new genus for "Aristocystites" sculptus Barrande (1887). |
|||||
|
Gen. et sp. nov |
Valid |
Gale |
A starfish belonging to the family Pterasteridae. Genus includes new species P. amourensis |
|||||
|
Gen. et comb. nov |
Valid |
Baumiller & Fordyce |
A feather star. Genus includes "Cypelometra" aotearoa Eagle (2007). |
|||||
|
Sp. nov |
Valid |
Hess & Thuy |
A cyrtocrinid crinoid. |
|||||
|
Sp. nov |
Valid |
Gale |
Late Cretaceous (early Campanian) |
A crinoid. |
||||
|
Sp. nov |
Valid |
Gale |
Late Cretaceous (early Campanian) |
A crinoid. |
||||
|
Gen. et sp. nov |
Valid |
Cole & Toom |
A camerate crinoid belonging to the group Diplobathrida and the family Opsiocrinidae. Genus includes new species S. krossi. |
|||||
|
Gen. et 2 sp. et comb. nov |
Valid |
Stara, Charbonnier & Borghi |
A heart urchin. The type species is S. caschilii; genus also includes S. arburensis, as well as "Prospatangus" thieryi Lambert (1909). |
|||||
|
Sp. nov |
Valid |
Rousseau & Gale in Rousseau, Gale & Thuy |
A starfish belonging to the family Pterasteridae. |
|||||
|
Gen. et sp. nov |
Valid |
Blake & Koniecki |
A starfish belonging to the order Hadrosida and to the family Palaeasteridae. The type species is S. keslingi. |
|||||
|
Gen. et sp. nov |
In press |
Sumrall & Zamora |
A pyrgocystid edrioasteroid. Genus includes new species S. lefebvrei. Announced in 2018; the final version of the article naming it is not published yet. |
|||||
|
Sp. nov |
Valid |
Ishida et al. |
A brittle star. |
|||||
|
Gen. et sp. nov |
In press |
Botting |
Late Ordovician |
A crinoid belonging to the group Cladida. Genus includes new species S. advorsa. Announced in 2018; the final version of the article naming it is not published yet. |
||||
|
Sp. nov |
Valid |
Mao et al. |
A crinoid. |
|||||
|
Sp. nov |
Valid |
Hess & Thuy |
A cyrtocrinid crinoid. |
|||||
|
Gen. et sp. nov |
Valid |
Gale |
A starfish belonging to the family Korethrasteridae. Genus includes new species T. fontenoillensis |
|||||
|
Gen. et sp. nov |
Valid |
Donovan, Waters & Pankowski |
A crinoid. Genus includes new species T. (col.) hanshessi |
|||||
|
Sp. nov |
Valid |
Mao et al. |
A crinoid. |
|||||
|
Gen. et sp. nov |
Valid |
Neumann & Girod |
Late Cretaceous (late Campanian) |
A starfish belonging to the family Goniasteridae. Genus includes new species W. intermedius. |
||||
|
Gen. et sp. nov |
Valid |
Müller & Hahn |
Early Devonian |
A member of Edrioasteroidea belonging to the family Agelacrinitidae. Genus includes new species W. poschmanni. |
||||
|
Gen. et sp. nov |
Valid |
Thompson et al. |
A stem-sea urchin. The type species is Y. luopingensis. |
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