Horizon annealing: a collection-based approach to automated sequencing of the fossil record
Article first published online: 16 AUG 2012
© 2012 The Authors, Lethaia © 2012 The Lethaia Foundation
Volume 45, Issue 4, pages 532–547, October 2012
How to Cite
DAVID SHEETS, H., MITCHELL, C. E., IZARD, Z. T., WILLIS, J. M., MELCHIN, M. J. and HOLMDEN, C. (2012), Horizon annealing: a collection-based approach to automated sequencing of the fossil record. Lethaia, 45: 532–547. doi: 10.1111/j.1502-3931.2012.00312.x
- Issue published online: 17 SEP 2012
- Article first published online: 16 AUG 2012
Sheets, H.D., Mitchell, C.E., Izard, Z.T., Willis, J.M., Melchin, M.J. & Holmden, C. 2012: Horizon annealing: a collection-based approach to automated sequencing of the fossil record. Lethaia, Vol. 45, pp. 532–547.
A number of different approaches to quantitative biochronology have been proposed and used to construct high-resolution time-scales for a range of uses. We present a new approach, horizon annealing, which uses simulated annealing to optimize the sequencing of collection horizons. Temporal sequences of events produced by this method are compared with those produced by graphic correlation, CONOP and RASC for a series of previously studied exemplar data sets. Horizon annealing produces results similar to other methods, but it does have properties (the ordination of collections and the avoidance of some local minima) that make it useful for high-resolution studies, particularly those based on capture-mark-recapture methods requiring detailed presence–absence data for individual collections and taxa. □ Chronostratigraphy, graphic correlation, graptolite, rate of evolution, CONOP9.