The last eryopids: Clamorosaurus and Syndyodosuchus from the late Kungurian (Cisuralian, Permian) of Russia revisited Author Werneburg, Ralf NaturHistorisches Museum Schloss Bertholdsburg Schleusingen, Burgstrasse 6, D- 98553 Schleusingen, Germany Author Witzmann, Florian Museum für Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Invalidenstraße 43, D- 10115 Berlin, Germany text Fossil Record 2024 2024-12-30 27 3 353 380 journal article 307022 10.3897/fr.27.e125460 6c2d8b15-b69f-4bb0-bc13-e49ec8e830f2 09729723-9CEC-4FBF-B0B1-FB8103534379

Table 1. Ranges of density counts of dermal sculpture pits (p) and valleys per in 2 (6.452 cm 2) of frontal and jugal in relation to the skull length (S l in cm) given separately and combined for eryopids and grouped by genus, species, and maturity (Werneburg and Berman 2012; Werneburg et al. 2023).

Eryopids	frontal-p / S l	jugal-p / S l	range of p / S l
Late Kungurian Clamorosaurus nocturnus (Pechora, Russia)	3.08	4.07	3.08–4.07
Late Kungurian Clamorosaurus borealis (Inta, Russia)	3.40	5.23	3.40–5.23 (prf: 7.84)
Late Kungurian Syndyodosuchus tetricus (Inta, Russia)	5.00	4.69	4.69–5.00
Late Pennsylvanian Glaukerpeton (Pennsylvania, West Virginia)	2.6–3.3	3.2–4.0	2.6–4.0
Pennsylvanian Eryops (El Cobre Canyon, New Mexico)	1.3	1.7	1.3–1.7
Early Permian Eryops grandis (New Mexico and Utah)	0.5–1.6	1.1	0.5–1.6
Adult Permian Eryops megacephalus	0.4–1.1	0.5 –1.0	0.4–1.1
subadult Permian Eryops (all Early Permian of Texas)	1.8	1.2–4.3	1.2–4.3
Early Permian Onchiodon thuringiensis (Germany)	1.0	-	1.0
Stenokranio boldi, Pennsylvanian-Permian boundary (Germany)	0.72–1.42	0.64–1.13	0.64–1.42