Genetics Age (dpf) Skull length Meckel / Skull Lip angles AB 4 0.61 0.180327869 32.98 AB 4 0.5 0.2 37.62 AB 4 0.73 0.191780822 34.07 AB 4 0.57 0.263157895 26.32 AB 4 0.64 0.34375 26.18 AB 4 0.59 0.186440678 30.04 AB 4 0.67 0.208955224 23.51 AB 4 0.65 0.215384615 18.26 AB 4 0.65 0.2 30.37 AB 4 0.69 0.260869565 29.05 AB 4 0.63 0.206349206 27.82 AB 4 0.66 0.212121212 34.76 AB 4 0.66 0.212121212 34.32 AB 4 0.63 0.301587302 32.38 AB 4 0.67 0.179104478 33.24 AB 4 0.61 0.213114754 36.16 AB 4 0.62 0.209677419 33.39 AB 4 0.58 0.24137931 35.83 AB 4 0.6 0.216666667 35.47 AB 4 0.66 0.227272727 32.43 AB 4 0.61 0.229508197 31.8 AB 4 0.64 0.21875 33.89 AB 14 1.25 0.28 28.28 AB 14 1.08 0.259259259 33.75 AB 14 1.04 0.230769231 31.57 AB 14 1.17 0.230769231 27.56 AB 14 1.23 0.268292683 35.93 AB 14 1.38 0.268115942 28.13 AB 14 1.39 0.273381295 19.76 AB 21 1.07 0.242990654 33.44 AB 21 1.03 0.194174757 32.5 AB 21 1.55 0.251612903 32.23 AB 21 1.87 0.272727273 32.11 AB 21 1.95 0.302564103 19.53 AB 21 1.65 0.327272727 38.51 AB 21 1.28 0.28125 29.86 AB 21 1.06 0.254716981 30.1 AB 21 1.1 0.281818182 38.96 AB 21 1.65 0.278787879 22.05 AB 21 1.58 0.335443038 35.18 AB 21 1.78 0.314606742 28.74 AB 21 1.88 0.345744681 28.35 AB 21 1.38 0.268115942 38.88 AB 21 1.93 0.321243523 31.5 AB 21 1.49 0.302013423 30.6 AB 21 1.66 0.331325301 32.92 AB 21 1.62 0.277777778 32.32 AB 21 1.6 0.2875 23.55 AB 21 1.03 0.300970874 36.74 AB 21 1.47 0.299319728 29.55 AB 21 1.49 0.308724832 28.8 AB 21 1.36 0.301470588 31.98 AB 21 2.02 0.287128713 32.11 AB 21 1.54 0.311688312 30.69 AB 21 1.81 0.29281768 40.3 AB 21 1.65 0.315151515 31.07 AB 30 3.04 0.332236842 31 AB 30 3.07 0.338762215 23.61 AB 30 3.08 0.331168831 21.4 AB 30 2.61 0.352490421 23.57 AB 30 2.93 0.372013652 30.89 AB 30 3.07 0.371335505 34.87 AB 30 3 0.36 34.75 AB 30 2.61 0.360153257 26.38 AB 30 2.89 0.342560554 23.51 AB 30 2.91 0.367697595 35.1 AB 30 2.74 0.361313869 28.07 AB 30 3.07 0.35504886 26.75 AB 30 3.2 0.390625 27.44 AB 30 2.78 0.298561151 36.46 AB 30 2.96 0.347972973 30.72 AB 30 2.71 0.335793358 26.91 AB 30 2.67 0.374531835 17.22 AB 30 2.56 0.328125 31.78 AB 30 2.49 0.301204819 31.07 AB 30 1.87 0.310160428 20.38 AB 30 2.18 0.28440367 30.27 AB 30 1.8 0.288888889 20.84 AB 30 1.46 0.301369863 20.15 AB 30 2.23 0.331838565 28.47 AB 30 2.5 0.304 27.38 AB 30 2.96 0.35472973 25.11 AB 30 2.07 0.289855072 40.3 AB 30 2.64 0.272727273 30.83 AB 30 1.63 0.300613497 38.07 AB 30 1.67 0.305389222 24.89 AB 30 2.62 0.328244275 23.45 AB 30 1.95 0.271794872 36.84 AB 30 2.42 0.32231405 30.1 AB 30 2.96 0.368243243 29.78 AB 30 2.74 0.350364964 32.36 AB 30 2.76 0.376811594 28.01 AB 30 2.77 0.335740072 28.4 AB 30 2.87 0.37630662 21.65 AB 30 2.65 0.373584906 29.71 AB 30 3 0.32 32.84 AB 30 2.91 0.350515464 22.32 AB 30 2.93 0.293515358 36.43 AB 30 2.57 0.369649805 19.68 AB 30 2.76 0.362318841 23.26 AB 30 2.94 0.370748299 28.32 AB 30 3.13 0.373801917 23.26 AB 30 2.9 0.382758621 24.32 AB 30 2.19 0.301369863 26.07 AB 30 2.99 0.347826087 32.88 AB 30 2.96 0.361486486 30.29 AB 30 2.95 0.349152542 19.02 AB 30 2.65 0.381132075 29.22 AB 30 2.8 0.342857143 20.66 AB 30 3.18 0.367924528 21.54 AB 30 3 0.373333333 32.4 AB 30 2.75 0.367272727 27.49 AB 30 1.97 0.294416244 29.74 AB 30 2.01 0.313432836 31.78 AB 30 1.98 0.303030303 26.17 AB 30 2.24 0.325892857 25.65 AB 60 5.47 0.372943327 31.44 AB 60 4.79 0.340292276 42.89 AB 60 5.07 0.420118343 32.74 AB 60 4.93 0.409736308 24.34 AB 60 4.88 0.459016393 25.45 AB 60 4.65 0.376344086 19.52 AB 60 5.66 0.4204947 17.34 AB 60 4.53 0.430463576 18.17 AB 60 4.97 0.384305835 14.56 AB 60 4.76 0.378151261 17.56 AB 60 9.11 0.457738749 31.531 AB 60 7.81 0.437900128 30.171 AB 60 9.3 0.407526882 31.401 AB 60 8.77 0.444697834 28.711 AB 60 8.87 0.463359639 33.511 AB 60 8.64 0.466435185 32.591 AB 60 10.4 0.449038462 26.871 AB 60 9.43 0.501590668 33.921 AB 60 9.02 0.514412417 28.311 AB 60 8.65 0.485549133 26.801 AB 60 9.73 0.458376156 27.361 ua5011 4 0.61 0.196721311 30.49 ua5011 4 0.55 0.2 30.09 ua5011 4 0.75 0.2 34.28 ua5011 4 0.6 0.233333333 35.67 ua5011 4 0.65 0.169230769 31.5 ua5011 4 0.63 0.253968254 36.11 ua5011 4 0.62 0.209677419 32.38 ua5011 4 0.61 0.213114754 28.28 ua5011 4 0.53 0.169811321 30.18 ua5011 4 0.55 0.2 28.6 ua5011 4 0.59 0.186440678 26.88 ua5011 4 0.58 0.189655172 23.11 ua5011 4 0.57 0.140350877 34.11 ua5011 4 0.54 0.148148148 26.57 ua5011 4 0.55 0.181818182 34.33 ua5011 4 0.59 0.152542373 31.06 ua5011 4 0.62 0.193548387 24.01 ua5011 4 0.59 0.220338983 29.12 ua5011 14 1.15 0.217391304 33.4 ua5011 14 1.14 0.192982456 31.01 ua5011 14 1.26 0.23015873 28.69 ua5011 14 1.39 0.309352518 31.49 ua5011 14 1.24 0.258064516 27.11 ua5011 14 1.19 0.218487395 23.93 ua5011 14 1.02 0.18627451 30.75 ua5011 14 1.18 0.220338983 29.26 ua5011 14 1.04 0.173076923 33.41 ua5011 21 1.36 0.264705882 77.68 ua5011 21 1.72 0.23255814 90.02 ua5011 21 1.37 0.277372263 82.52 ua5011 21 1.6 0.21875 67.51 ua5011 21 1.79 0.240223464 39.31 ua5011 21 1.78 0.219101124 78.1 ua5011 21 1.53 0.287581699 71.99 ua5011 21 1.47 0.258503401 82.39 ua5011 21 1.6 0.225 73.12 ua5011 21 1.51 0.21192053 100.61 ua5011 21 1.33 0.293233083 48.45 ua5011 21 1.3 0.315384615 47 ua5011 21 1.67 0.269461078 90.05 ua5011 21 1.14 0.307017544 56.35 ua5011 21 1.09 0.321100917 61.02 ua5011 21 1.16 0.293103448 60.02 ua5011 21 1.47 0.265306122 72.81 ua5011 21 1.62 0.314814815 46.69 ua5011 21 1.36 0.316176471 69.4 ua5011 21 1.48 0.283783784 84.06 ua5011 21 1.45 0.344827586 68.27 ua5011 21 1.46 0.287671233 64.55 ua5011 30 2.57 0.217898833 99.5 ua5011 30 1.74 0.24137931 143.83 ua5011 30 2.5 0.248 118.58 ua5011 30 2.64 0.25 104.12 ua5011 30 2.33 0.274678112 136.66 ua5011 30 2.07 0.265700483 119.63 ua5011 30 2.24 0.316964286 125.12 ua5011 30 2.72 0.25 113.74 ua5011 30 2.47 0.24291498 137.37 ua5011 30 2.53 0.225296443 69.94 ua5011 30 1.88 0.20212766 51.24 ua5011 30 2.57 0.280155642 105.08 ua5011 30 1.91 0.303664921 121.66 ua5011 30 2.67 0.25093633 118.3 ua5011 30 2.58 0.282945736 117.15 ua5011 30 2.71 0.110701107 140.99 ua5011 30 1.96 0.239795918 43.27 ua5011 30 2.73 0.271062271 111.94 ua5011 30 2.75 0.265454545 114.59 ua5011 30 2.45 0.269387755 138.54 ua5011 30 2.62 0.259541985 111.66 ua5011 30 2.64 0.25 93.66 ua5011 30 2.49 0.317269076 107.17 ua5011 30 2.56 0.31640625 108.74 ua5011 30 2.96 0.25 87.09 ua5011 30 3.12 0.378205128 123.33 ua5011 30 1.98 0.232323232 125.71 ua5011 30 2.51 0.258964143 143.1 ua5011 30 2.93 0.273037543 110.05 ua5011 30 2.07 0.333333333 89.67 ua5011 30 3.11 0.270096463 55.94 ua5011 30 1.92 0.255208333 85.02 ua5011 30 2.27 0.31277533 87.94 ua5011 30 2.72 0.264705882 101.81 ua5011 30 2.7 0.240740741 112.63 ua5011 30 3.09 0.207119741 107.48 ua5011 30 2.6 0.219230769 112.93 ua5011 30 2.57 0.20233463 134.83 ua5011 30 2.41 0.298755187 118.14 ua5011 30 2.3 0.169565217 59.5 ua5011 30 3.16 0.243670886 95.98 ua5011 30 2.2 0.272727273 103.4 ua5011 60 5.24 0.171755725 119.03 ua5011 60 3.66 0.281420765 122.5 ua5011 60 4.72 0.216101695 129.59 ua5011 60 5.03 0.21471173 121.55 ua5011 60 5.08 0.244094488 120.48 ua5011 60 5.68 0.235915493 125.62 ua5011 60 5.99 0.238731219 100.44 ua5011 60 8.19 0.294261294 138.92 ua5011 60 8.31 0.324909747 138.8 ua5011 60 7.97 0.386449184 131.02 ua5011 60 6.86 0.274052478 121.64 ua5011 60 7.22 0.300554017 132.78 ua5011 60 7.33 0.417462483 132.67 ua5011 60 4.85 0.32371134 90.91 ua5011 60 8.41 0.303210464 125.28 ua5011 60 8.2 0.317073171 127.95 ua5011 60 5.57 0.29443447 90.37 ua5011 60 8.47 0.323494687 88.46 Taxon Institition Specimen number Orbit diameter Lip angles Birkenia elegans MB. F. 3995 2.53 93.40 Birkenia elegans MB. F. 4090 2.09 96.32 Birkenia elegans MB. F. 4102 1.85 80.24 Birkenia elegans MB. F. 4123 1.80 97.31 Birkenia elegans MB. F. 4400 1.50 90.03 Birkenia elegans MB. F. 5563 1.75 100.15 Birkenia elegans MCZ 1569 2.02 67.31 Birkenia elegans MCZ 2006 2.36 95.88 Birkenia elegans MCZ 2007 0.72 101.39 Birkenia elegans MCZ 2014 0.72 86.64 Birkenia elegans MNHN GBP 319 1.22 117.91 Birkenia elegans MNHN GBP 430 0.55 115.11 Birkenia elegans MNHN GBP 440 1.30 105.25 Birkenia elegans MNHN GBP 442 1.79 73.90 Birkenia elegans MNHN GBP 444 1.70 102.08 Birkenia elegans MNHN GBP 445 1.35 81.72 Birkenia elegans MNHN GBP 461 1.39 84.64 Birkenia elegans MNHN GBP 470 2.76 110.78 Birkenia elegans NHMUK P 10141 2.05 106.35 Birkenia elegans NHMUK P 11032 2.25 102.93 Birkenia elegans NHMUK P 11278 2.23 77.91 Birkenia elegans NHMUK P 42020 2.14 95.15 Birkenia elegans NMS 1901.27 2.72 116.79 Birkenia elegans NMS 1901.68.17 1.87 106.46 Birkenia elegans NMS 1901.68.21 0.51 96.43 Birkenia elegans NMS 1901.68.22 1.68 114.13 Birkenia elegans NMS 1929.5.6 1.60 121.83 Birkenia elegans NMS 1929.5.8 1.26 83.05 Birkenia elegans NMS 1929.5.28 1.90 93.15 Birkenia elegans NMS 1929.5.40 2.21 93.37 Birkenia elegans NMS 1929.5.49 1.85 93.75 Birkenia elegans NMS 1929.5.68 1.85 94.62 Birkenia elegans NMS 1959.9.1 1.79 92.40 Birkenia elegans NMS 1966.49.3 2.31 90.98 Birkenia elegans NMS 1971.12.7 2.40 96.16 Birkenia elegans NMS 2002.26.1401 3.63 115.52 Cornwallis anaspid GSC C-26661 002 3.72 96.93 Cornwallis anaspid GSC C-26661 005 4.56 92.12 Cornwallis anaspid GSC C-26661 016 2.70 97.11 Cornwallis anaspid GSC C-26661 019 3.61 94.19 Cornwallis anaspid GSC C-26661 029/032 2.94 105.38 Cornwallis anaspid GSC C-26661 030 2.73 109.47 Cowielepis ritchiei NMS 1991.48.1 1.45 91.35 Lasanius problematicus MB. F. 4120 0.62 96.66 Lasanius problematicus MB. F. 4124 0.74 127.25 Lasanius problematicus MCZ 5500 1.16 101.39 Lasanius problematicus MCZ 5537 1.73 98.68 Lasanius problematicus MCZ 5539 1.47 109.80 Lasanius problematicus MNHN GBP 387 0.64 114.51 Lasanius problematicus MNHN GBP 389 1.10 104.85 Lasanius problematicus MNHN GBP 390 1.06 96.90 Lasanius problematicus MNHN GBP 398 1.20 133.33 Lasanius problematicus MNHN GBP 399 1.19 102.11 Lasanius problematicus MNHN GBP 402 0.90 106.86 Lasanius problematicus MNHN GBP 415 0.59 101.97 Lasanius problematicus MNHN GBP 421 0.63 91.31 Lasanius problematicus MNHN GBP 426 1.64 94.97 Lasanius problematicus MNHN GBP 450 1.28 106.95 Lasanius problematicus MNHN GBP 496 1.27 117.26 Lasanius problematicus NHMUK P 9634 1.09 120.74 Lasanius problematicus NHMUK P 11056 0.77 105.16 Lasanius problematicus NHMUK P 11057 1.87 89.50 Lasanius problematicus NHMUK P 11058 1.40 127.12 Lasanius problematicus NMS 1929.5.33 1.24 110.85 Pharyngolepis oblongus PMO E1067 3.80 96.17 Pharyngolepis oblongus PMO E1068 3.50 100.06 Pterygolepis nitidus MCZ 5121 1.40 95.37 Pterygolepis nitidus MCZ 8490 1.38 92.15 Pterygolepis nitidus PMO E1063 3.45 118.94 Pterygolepis nitidus PMO E1131 3.28 109.61 Pterygolepis nitidus PMO E1151 3.12 101.35 Pterygolepis nitidus SMNH C-1245 2.30 99.62 Ryncholepis parvulus MCZ 5266 1.87 114.82 Ryncholepis parvulus NHMUK P 14398 2.47 92.92 Ryncholepis parvulus NMS 1931.73.7 2.15 111.43 Ryncholepis parvulus PMO E1129 1.91 95.54 Ryncholepis parvulus PMO E0127 2.05 107.89 Ryncholepis parvulus PMO E1049 1.73 111.98 Ryncholepis parvulus PMO E1059 2.56 113.31 Ryncholepis parvulus PMO E1112 2.25 99.05 Ryncholepis parvulus PMO E1128 1.42 104.43 Ryncholepis parvulus PMO E1153 2.99 96.93 Spnenonectris turnerae UALVP 42212 7.67 140.48 Spnenonectris turnerae UALVP 43222 6.42 136.56 Spnenonectris turnerae UALVP 33023 4.99 110.34 Spnenonectris turnerae UALVP 42217 6.09 106.12 Spnenonectris turnerae UALVP 42221 3.05 124.62