Fossil specimen : SM A 471 – Lectotype
| Taxonomic Group |
Kingdom Animalia Phylum Arthropoda Class Trilobita Order Ptychopariida |
|---|---|
| Fossil Name | Holocephalina incerta Illing, 1916 |
| Type Status | Lectotype |
| Name History | Holocephalina incerta Illing, 1916 – See Morris, S.F. (1988): Lectotype Holocephalina incerta Illing, 1916 – See Lake (1938) Holocephalina incerta Illing, 1916 – See Illing, V.C. (1916): Syntype |
| Registration No. | A 471 |
|---|---|
| Collector | Name not available |
| Donor or Associated Person | Name not available |
| Held By |
 Sedgwick Museum of Earth Sciences, University of Cambridge
|
| Comments |
| Country | England |
|---|---|
| Locality | Hartshill Hayes, Warwickshire, England |
| Grid Reference | Not available |
| Rock Unit | Stockingford Shale (E1) |
|---|---|
| Biozone | Paradoxides davidis |
| Geological Age |
Tremadoc Series (Ordovician Period) – Comley Series (Cambrian Period) (477.7 – 526 Ma B.P.) [Closest ICS interval: Tremadocian Age – Terreneuvian Epoch ] |
| References | Illing, V.C. 1916 for 1915. Quarterly Journal of the Geological Society of London vol. lxxi pl.35 fig.4 Lake 1938. A monograph of the British Cambrian Trilobites Palaeontographical Society Monographs p.265 pl. xxxix fig.1 Morris, S.F. 1988. A review of British trilobites, including a synoptic revision of Salter's monograph. Monograph of the Palaeontographical Society London. pp. 1-316 (Publication Number 574, part of volume 140 for 1986). p. 110 |
|---|
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