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TABLE 1. Cranial measurements (in mm) of Hungarosaurus and Struthiosaurus. Data for Struthiosaurus specimens taken from Pereda Suberbiola and Galton (1994). ?+' indicates that in that case of measurement the specimen is not complete or compressed.

 

Measurements

Hungarosaurus sp. (MTM PAL 2013.23.1)

Struthiosaurus austriacus (PIUW 2349/6)

Struthiosaurus transylvanicus (NHMUK R4966)

Skull length (preserved)

+115

+54

+115

Maximum skull width behind the orbits

-

-

255

Breadth of paroccipital processes

-

-

113

Depth from skull roof to base of basipterygoid process

-

-

114

Transverse diameter of occipital condyle

29.5

21

24

Greatest diameter of foramen magnum

+19

17

18

Breadth of basipterygoid processes

-

+18

35

Height from base of occipital condyle to skull roof

80

56

81

Angle of basisphenoid relative to occipial condyle

95°

105°

-

 

TABLE 2. List of ankylosaur endocranial cast specimens. 

 

Taxon

Material (braincase)

Provenance

References

Euoplocephalus tutus

AMNH 5337

AMNH 5403

AMNH 5405, UALVP 31, 47977

Campanian, Alberta, CA

Coombs (1978a), Hopson (1979)

Witmer and Ridgely (2008)

Miyashita et al. (2011)

Panoplosaurus mirus

ROM 1215

Campanian, Alberta, CA

Witmer and Ridgely (2008)

Struthiosaurus transylvanicus

NHMUK R4966

Maastrichtian, Romania

Nopcsa (1929),

Pereda Suberbiola and Galton (1994)

Struthiosaurus austriacus

PIUW 2349/6

Campanian, Austria

Pereda Suberbiola and Galton (1994)

Cf. Polacanthus foxii

CAMSM X26242

Barremian, UK

Norman and Faiers (1996)

Cedarpelta bilbeyhallorum

CEUM 10267, 12360

Albian-Cenomanian, USA

Carpenter et al. (2001)

"Hokkaido nodosaurid"

MCM A522

Cenomanian, Japan

Hayakawa et al. (2005)

Hungarosaurus sp.

MTM PAL 2013.23.1

Santonian, Hungary

This work

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