Table 1.
Results of one-way χ2-tests for the in-situ and ex-situ datasets of dinosaur ootaxa.
| Ootaxa | n for fine-grained | n for coarse-grained | Total n | Expected n for fine-grained | Expected n for coarse-grained | χ2 value | d.f. | p |
|---|---|---|---|---|---|---|---|---|
| In-situ dataset | ||||||||
| Dendroolithidae | 5 | 5 | 10 | 5.313 | 4.687 | 0.039 | 1 | 0.843 |
| Elongatoolithidae | 14 | 13 | 27 | 14.344 | 12.656 | 0.018 | 1 | 0.894 |
| Faveoloolithidae | 4 | 32 | 36 | 19.125 | 16.875 | 25.518 | 1 | <0.001 |
| Megaloolithidae | 44 | 22 | 66 | 35.063 | 30.937 | 4.860 | 1 | 0.027 |
| Prismatoolithidae | 9 | 11 | 20 | 10.625 | 9.375 | 0.530 | 1 | 0.530 |
| Spheroolithidae | 10 | 3 | 13 | NA | NA | NA | NA | NA |
| Other ootaxa | 16 | 4 | 20 | 10.625 | 9.375 | 5.801 | 1 | 0.0016 |
| Total | 102 | 90 | 192 | NA | NA | NA | NA | NA |
| Ex-situ dataset | ||||||||
| Dendroolithidae | 1 | 3 | 4 | NA | NA | NA | NA | NA |
| Elongatoolithidae | 15 | 14 | 29 | 16.096 | 12.904 | 0.168 | 1 | 0.682 |
| Faveoloolithidae | 7 | 9 | 16 | 8.880 | 7.120 | 0.894 | 1 | 0.344 |
| Megaloolithidae | 25 | 29 | 54 | 29.971 | 24.029 | 1.853 | 1 | 0.173 |
| Prismatoolithidae | 10 | 10 | 20 | 11.100 | 8.900 | 0.245 | 1 | 0.621 |
| Spheroolithidae | 15 | 9 | 24 | 13.321 | 10.679 | 0.476 | 1 | 0.490 |
| Other ootaxa | 43 | 19 | 62 | 34.411 | 27.589 | 4.818 | 1 | 0.028 |
| Total | 116 | 93 | 209 | NA | NA | NA | NA | NA |
Spheroolithidae from the in-situ dataset and Dendroolithidae from the ex-situ dataset were not tested due to the small sample sizes. Abbreviations: d.f., degree of freedom; n, sample size; NA, not applicable; p, probability for χ2-tests.