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Swiss Journal of Palaeontology

Table 1 Familial taxonomic richness and ecological categories of the late Albian fauna of Semelenberg

From: New Albian ammonite faunas from Semelenberg (Alpstein, Switzerland) and their paleoecology

Paleoecology in Semelenberg Nord II (late Albian)

Family

Abundance

Ecology

Brancoceratidae*

49

A

Desmoceratidae*

43

A

Hamitidae*

35

A

Anisoceratidae*

19

A

Inoceramidae*

18

H

Turrilitidae*

10

A

Turbinidae*

9

E

Tetragonitidae

8

A

Phylloceratidae

7

A

Cymatoceratidae

3

B

Harpagodidae

3

E

Aporrhaidae

2

E

Caryophylliidae

2

C

Trochidae

2

E

Ampullinidae

1

E

Belemnopseidae

1

A

Echinoid indet. 1

1

E

Echinoid indet. 2

1

E

Hoplitidae

1

A

Laqueidae

1

F

Osteichthyes indet.

1

A

Pleurotomariidae

1

E

Ringiculidae

1

E

Scaphitidae

1

A

Scaphopod indet.

1

G

Sponge indet.

1

D

Tetrarhynchiidae

1

F

 

Familial taxonomic richness

Ecological disparity

Trophic nucleus

Original data (N = 222)

28.0

8.0

7

Rarefied data (N = 70)

16.4

5.4

NA

‘Paleoecology 4’ in Tajika et al. (2017a)

15.5

5.9

7

  1. Groups in the trophic nucleus are indicated by an asterisk. A, pelagic, freely fast, predators. B, pelagic, freely slow, predators. C, erect, facultative attached, suspension. D, erect, non-motile attached, suspension. E, surficial, freely slow, grazing. F, surficial, non-motile attached suspension. G, semi-infaunal, freely slow, suspension. H, semi-infaunal, facultative-attached suspension. NA, not available. The ecological categories were introduced by Bush et al. (2007)
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