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Table 3 Measurements of carapace length, eye diameter and ommatidia surface for all studied specimens of polychelidans

From: On the sighted ancestry of blindness – exceptionally preserved eyes of Mesozoic polychelidan lobsters

Species Specimen CL: Carapace Length (μm) d: Eye diameter (μm) d/CL ommatidia surface Outcrop Putative palaeodepth Family
Coleia barrovensis NHMUK.I6589 28000 4100 0.15 4356 Binton shallow Coleiidae
Gabaleryon sp. SMNS 67631 18300 1850 0.10 3025 Gomaringen intermediate Coleiidae
Coleia viallii MSNM i3368 37000 5600 0.15 6724 Osteno deep Coleiidae
Cycleryon elongatus SNSB-BSPG AS I 939 39700 4700 0.12 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon elongatus SNSB-BSPG AS VI 43 39800 4100 0.10 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon orbiculatus SMNS 62574 19600 3150 0.16 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon orbiculatus SMCU F11408 32500 3900 0.12 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon orbiculatus SNSB-BSPG AS VII 762 15800 2200 0.14 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus SMNS (no reg. Number) 62000 4800 0.08 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus MNHN.F.B13436 59000 8300 0.14 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus SNSB-BSPG 1922 I 35 85000 8500 0.10 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus SNSB-BSPG AS VI 42 57000 3000 0.05 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus SNSB-BSPG (no reg. Number) 49000 6500 0.13 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus JME-SOS 6827 55500 5200 0.09 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon propinquus (female) SNSB-BSPG AS VI 40 73000 5400 0.07 NA Southern Germany plattenkalks shallow Eryonidae
Cycleryon romani FSL 170522 112000 4000 0.04 NA La-Voulte-sur-Rhône deep Eryonidae
Hellerocaris falloti MNHN.F.A50709 6500 850 0.13 588 La-Voulte-sur-Rhône deep aff. Polychelidae
Hellerocaris falloti FSL 710108 24500 1900 0.08 3844 La-Voulte-sur-Rhône deep aff. Polychelidae
Hellerocaris falloti FSL 170598 25800 2350 0.09 NA La-Voulte-sur-Rhône deep aff. Polychelidae
Knebelia bilobata JME-SOS 6864 40000 4600 0.12 NA Southern Germany plattenkalks shallow Eryonidae
Knebelia bilobata NHMUK.In 28964 54000 4300 0.08 NA Southern Germany plattenkalks shallow Eryonidae
Knebelia bilobata SMNS 70044 43500 4000 0.09 NA Southern Germany plattenkalks shallow Eryonidae
Knebelia totoroi SMNS 67916 68500 7200 0.11 4556 Southern Germany plattenkalks shallow Eryonidae
Palaeopentacheles roettenbacheri SMNS 67903 4200 1100 0.26 1225 Southern Germany plattenkalks shallow Palaeopentachelidae
Palaeopentacheles roettenbacheri BSPG AS I 989 30000 4900 0.16 NA Southern Germany plattenkalks shallow Palaeopentachelidae
Palaeopentacheles roettenbacheri BSPG AS I 992 26700 3400 0.13 NA Southern Germany plattenkalks shallow Palaeopentachelidae
Palaeopentacheles roettenbacheri SNSB-BSPG (no reg. Number) 9250 900 0.10 NA Southern Germany plattenkalks shallow Palaeopentachelidae
Palaeopolycheles longipes SMNS 63744 29500 4100 0.14 NA Southern Germany plattenkalks shallow Coleiidae
Palaeopolycheles longipes SMNS 63833 22000 3000 0.14 NA Southern Germany plattenkalks shallow Coleiidae
Palaeopolycheles longipes SMNS 70203 22000 3300 0.15 NA Southern Germany plattenkalks shallow Coleiidae
Proeryon giganteus UJF-ID 11547 71000 11000 0.15 7744 La-Voulte-sur-Rhône deep Coleiidae
Proeryon giganteus UJF-ID 14020 79000 11600 0.15 6209 La-Voulte-sur-Rhône deep Coleiidae
Proeryon giganteus FSL 170603 85000 9100 0.11 8100 La-Voulte-sur-Rhône deep Coleiidae
Proeryon hartmanni BSPG 1942 I 20 60000 6100 0.10 NA Holzmaden intermediate Coleiidae
Proeryon hartmanni SMNS 64019 89000 7700 0.09 NA Holzmaden intermediate Coleiidae
Rosenfeldia oppeli SMNS 66004 38000 3400 0.09 1824 Southern Germany plattenkalks shallow unknown
Soleryon amicalis MHNL 20271902 72500 2500 0.03 NA Cerin shallow Eryonidae
Tethyseryon campanicus CSMNF 22000a 21500 2400 0.11 NA Monte Fallano shallow Coleiidae
Tethyseryon campanicus CSMNF 22000c 8200 1100 0.13 NA Monte Fallano shallow Coleiidae
Tethyseryon campanicus CSMNF 22000 g 10000 1200 0.12 NA Monte Fallano shallow Coleiidae
Willemoesiocaris ovalis MNHN F A29521 45000 7000 0.16 4738 La-Voulte-sur-Rhône deep Coleiidae
Willemoesiocaris ovalis FSL 170602 32000 5800 0.18 NA La-Voulte-sur-Rhône deep Coleiidae
  1. Distances in μm, surfaces in μm2