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Heteroaspis stoermeri

Chasmataspidida - Diploaspididae

Taxonomy
Eurypterus stoermeri was named by Novojilov (1959). It is not extant. Its type locality is Imaigda River, Taymyr Peninsula, which is in a Lochkovian paralic marl in the Zub Formation of the Russian Federation.

It was considered an invalid subgroup of Eurypterus by Dunlop et al. (2013); it was recombined as Heteroaspis stoermeri by Marshall et al. (2014) and Dunlop et al. (2020).

Synonyms
Synonymy list
YearName and author
1959Eurypterus stoermeri Novojilov
1972Heteroaspis novojilovi Størmer
2001Diploaspis novojilovi Dunlop et al.
2014Heteroaspis stoermeri Marshall et al.
2020Heteroaspis stoermeri Dunlop et al. p. 16

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
Deuteropoda
subphylumChelicerataHeymons 1901
RankNameAuthor
EuchelicerataWeygoldt and Paulus 1979
Prosomapoda
Planaterga
Dekatriata
orderChasmataspididaCaster and Brooks 1956
familyDiploaspididaeStormer 1972
genusHeteroaspisStørmer 1972
speciesstoermeri(Novojilov 1959)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Heteroaspis stoermeri Novojilov 1959
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Invalid names: Heteroaspis novojilovi Størmer 1972 [synonym]
Diagnosis
ReferenceDiagnosis
D. J. Marshall et al. 2014Diploaspididae with subquadrate carapace;
lateral eyes positioned centrilaterally upon trapezoidal
ophthalmic ridge; Erieopterus-type ventral plates; epimera
on posterior of buckler. Emended from Størmer (1972).
Measurements
No measurements are available
Locomotion: actively mobilep
Created: 2004-02-29 09:38:49
Modified: 2004-02-29 11:38:49
Source: p = phylum
Reference: Kiessling 2004

Age range: base of the Lochkovian to the top of the Early/Lower Emsian or 419.20000 to 402.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Lochkovian419.2 - 410.8Russian Federation (Siberia) Heteroaspis stoermeri (type locality: 60391)
Lochkovian419.2 - 410.8Russian Federation Heteroaspis stoermeri (26989)
Early/Lower Emsian409.1 - 402.5Germany (Alken) Heteroaspis novojilovi (27049)