Table 1 Measurements of some Smithian ammonoids from Utah

Xenoceltites

sp. indet. A

UBGD 275010

53.4

17

11.4

21.7

Slightly deformed

Kashmirites

confusionensis sp. nov.

UBGD 275018

50.2

13.7

–

26.6

Holotype

?Xiaoqiaoceras

americanum sp. nov.

UBGD 275042

21.6

9.5

8.4^a

5.2^a

Holotype, phragmocone only

Wyomingites

cf. aplanatus

UBGD 275053

35.5

13.1

7.5^a

12.5

Wyomingites

cf. aplanatus

UBGD 275052

28.5^a

9.5

5.8

11.4

Flemingites

sp. indet.

UBGD 275054

76^a

28

13.6^a

28

Submeekoceras

mushbachanum

–

72.6

31

20.1

18.5

K. G. Bylund pers. collection

Minervillites

farai

UBGD 275061

68^a

25.7^a

14.7

26.7

Paratype

Hemiprionites

cf. typus

UBGD 275110

45.7

24.3

11.8^a

–

Arctoprionites

resseri

UBGD 275112

115^a

54^a

30.1

23.5

Meekoceras

millardense sp. nov.

UBGD 275121

37.7

20.3

–

–

Holotype

Owenites

koeneni

UBGD 275123

36.5

18.1

8.9

4.4

Gen. indet. A

UBGD 275149

30

10.9

6.7

11.6

Gen. indet. A

UBGD 275150

22.7

9

5.6

7

Gen. indet. B

UBGD 275158

25.2

9.5

6.7

9.6

Gen. indet. C

UBGD 275161

41.2

23.4

–

–

Gen. indet. D

UBGD 275162

50

19.7

9.5

14.7