PALEOZOIC. — RHIZOPODA. CAMBRIAN AND SILURIAN. 
CAMBRIAN. LOWER SIL. UPPER SILURIAN. 
SS SS a ai 
a SRM ieale 
=| lal | | (lEVBIESMIE Bele 
: Alelels| lelslelelsl@sle\S ele 
SPECIES. 3/2lale r= 2/4/28 Bl |¥\5 Bile a REFERENCES. 
pe esieal eislelrisleleielé las] 2 
5 |a| 9) B EI Se Elesle|/sla)s)/2 
a|o|e/9 3 alo 1.2}2 |) al 
Ble el4a\s Sei lEe al<|s ie |e 
|—} | pe | a 
Kingdom, ANIMALIA. 
Sub-Kingdom, PROTOZOA. 
Class, RHIZOPODA. Dujardin. | 
Order, Spongida. (Amorphozoa.) 
SPONGIDA. 
Acanthospongia.. M‘Coy, 1846... 
— Siluriensis ...... M*Coy ......... Ber laap| ase eral ee se Sil. Foss. Ireland, p. 67. 
SPONGIDA. 
Amphispongia ... Salter,1861 ... 
— oblonga ......... SQUE: Me caeensniies ata leone [Rael bain « wee Lasalle ay sais vealeee[ecefece{ece ¢ [eee {e-e| Mem. Geol. Surv. Expl. Map 32, Edinb. p.135, t. 2, f. 3. 
SPONGIDA. 
Astylospongia ... Rdémer, 1860... 
—=(PTAaba s.cescaveres Salizecccucseae eee [eeai[esal ees | tae pea |e! ee Joos ves[eee[oeelese[ees|eee[eee]ee-| Cat. Camb. and Sil. Foss. Camb. Mus. p. 40. 
— pericarpum ...,.. Salina kesiaencee calaeiees poc|)e3illsod boa veslase[eesfece[erefecsfeee|eee| Vide Q. J. Geol. Soc. vol. xx, p. 239, foot note. (Sp. in M. P. 
Geol. Coll.) 
HALICHONDRID&.- 
PHONG sy. cs csccss cats Grant, 1827 ... 
Vioa ... Nardo, 1831 ... 
Entobia ......... Bronn, 1836, 
| Portlock, 1843. 
— antiqua ......... POPE se ects eee eee lcealeets pect see] [eee[ovalsec[oos[oes]eeeeee]eoefers|oo| Lntobza, Geol. Rept. Lond. p. 360, t. 21, f. 5. 
— prisea ............ ME CO3)) Wasa naass soellsealsouleoal ton -so] x |..-[--[---| 2] P]-..]..-{-.-| Poa, Pal. Foss, p. 260, t.1 B, f.1. (May be one of the 
i Annelida.) 
? SIPHONID#. 
Cnemidium......... Goldfuss, 1830 
> REIGN Geoqodsionago Lonsd. ........ pool S86 fa5\ [aad fon 66 eal (bec! (40 ses| ok [oee[eee|eee]eee].-e]..-| Sil. Syst. t.16 bis, f.10; ib. Sil. t. 38, f. 11. (? Caleareous 
+ sponge.) 
Entobia ......... Bron; L830 eealece lees |eeel eed tece wontons eae five ne |lecelass|ses|aonleee|isa|iaenl| Pece ClOna. 
SPONGIDA. 
Favospongia ...... M ‘Coy, Salter. 
| — Ruthveni......... WSQUES) estaasensaeet nod eealevalesal ed Jees[eveloeaPeos|eee[ecsfece{eoeleee] & ]oee---| M‘Coy, Brit. Pal. Foss. t.1 D, £. 9. (? Alveolites.) 
? Sponeipa. 
| Ischadites ......... Murchison,1839 
— antiquus ......... GUE. ccncossecsse Sp0llond| [eal loon bac Ieoall ec es ses[ees|oes]eeefece{oeefoee{ee.{ Mem. Geol. Surv. vol. iii, p. 282, woodcut f. 4. 
— Kenigi ......... MMUPCh, .cicce00: sdelene| Mealteod eres rg eel ise Jaee x [ee-[eee] x ]oo] x ]eee[...| Sil. Syst. p. 697, t. 26, f.11; ib. Sil. ed. 4, t.12, f. 4. P Re- 
ceptaculites Neptuni, Defy. Dict. vol. xlv, p. 5. Ischadites 
Keenigi, Salt. Cat. Camb. and Sil. Foss. Camb. Mus. p. 100, 
top fig. 
? Spona@rpa. 
Nidulites ......... Salter, 1851 ... | 
—— FAVS -svqseccere Salirmasccsscseass acl (605) ed nec| [aoe secless|ece[ees|eee]eee{eee|ooe[eee| Q. J. Geol. Soc. vol. vii, p.174, t.9, £.16,17; ib. Sil. 4 ed. 
p. 188, Foss. 30, f. 3. ? Pasceolus, Billings, Geol. Surv. 
roeeworan. Canada (Pal. Foss.), p. 390. 
Pasceolus ......... Billings, 1857 . 
— Gonughii ......... SEG. risciwasinedees deel emallerelined lies edd lbce) face coc seelece[easlece/eee] x [eee{eee] Cat. Camb. and Sil. Foss. Camb. Mus. p.175. (Salter MS.) 
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