Odontopleurida

Laethoprusia salax

Order Odontopleurida / Family Odontopleuridae

Homerian (Wenlock, Silurian)Sweden

Laethoprusia salax — photo 1 — Photo 1 · Koneprusia and Isoprusia) Holotype Ar54065 (Sweden; Ramsköld 1991) Restoration (Ramsköld 1991) Paratypes Ar54065 (Sweden; Ramsköld 1991)

Laethoprusia salax — photo 2 — Photo 2 · Koneprusia and Isoprusia) Holotype Ar54065 (Sweden; Ramsköld 1991) Restoration (Ramsköld 1991) Paratypes Ar54065 (Sweden; Ramsköld 1991)

Laethoprusia salax — photo 3 — Photo 3 · Koneprusia and Isoprusia) Holotype Ar54065 (Sweden; Ramsköld 1991) Restoration (Ramsköld 1991) Paratypes Ar54065 (Sweden; Ramsköld 1991)

Classification

Order Odontopleurida / Family Odontopleuridae

Genus

Laethoprusia Ramsköld, 1991

Genus author

Ramsköld L.

Genus etymology

From the Greek prefix la- (intensifying), aethos (strange) and the suffix -prusia (alluding to its similarity to

Species

L. salax Ramsköld, 1991

Species author

Ramsköld L.

Species etymology

salax, Greek, sieve

Age

Homerian (Wenlock, Silurian)

Distribution

Sweden

Diagnosis

Dorsal shield densely covered with nodes of varying size. Anterior glabellar lobe expanded forward, S1 and S2 deep, S3 undifferentiated, L1 long; occipital ring longitudinally long with a median node; palpebral lobes raised; eye ridges long; librigenal genal spines stout and long. Thorax preserved only as incomplete segments. Pygidium subsemicircular; axis of three isolated axial rings; pleural region with fenestrae ovate to elliptical; 3 pygidial marginal spines, the me- dian short and the lateral two long.

Remarks

This species is the type species of the genus Laethoprusia.