Late Silurian to earliest Devonian vertebrate biostratigraphy of the Birch Creek II section, Roberts Mountains, Nevada, U. S. A. Author Burrow, Carole Jan Author Murphy, Michael Author Turner, Susan text PaleoBios 2023 2023-06-06 40 4 1 32 http://dx.doi.org/10.5070/p940454153 journal article 303770 10.5070/P940454153 c9041efa-0589-48a8-8098-21133494ccfe 0031-0298 10913559 58312615-0833-432E-BF5D-3DFFBF361AAA

Table 1. Distribution of vertebrate and agnathan remains in the Birch Creek Section BCII, northern Roberts Mts. (Přidolí-Lochkovian; bold line indicates probable S/D boundary). Vertebrates are to the left above the upper horizontal line and agnathans are to the right. RP indicates Ross Parke samples. Number of elements: x 1-10, xx 11-50, xxx 51-100, xxxx>100.

UCR #	Level in section(ft)	tion Level (in m) sec-(UO) CONODONT OCCURRENCES LOWER (LO) AND UPPER	TAXON Poracanthodes punctatus	Poracanthodes canadensis	poracanthodid Radioporacanthodes sensory porosus line scale		Radioporacanthodes scheii	Zemlyacanthus menneri	Gomphonchoporus hoppei	Trundlelepis cervicostulata	Gomphonchus sandelensis	Gomphonchus sp. aff. G. mediocostatus fragmt ischnacanthiform dentigerous jaw Nostovicina laticristata			Nostovicina sp. cf. N. elegans Nostovicina sp. cf. N. guangxiensis Nostovicina sp. cf. N. lacrima Nostovicina or Nostolepis sp. Nostolepis matukhini					Funicristata nevadaensis n. gen. n. sp. Acanthodii indet. scales Acanthodii indet. fin spine fragmt Ellesmeria Acanthodii indet schultzei. tooth whorl					Polymerolepis	Lophosteus sp. cf. L. superbus conical Loganellia teeth - cuneata sarcopterygian Paralogania sp. cf. readbayensis				Trimerolepis sp. cf. tricava Trimerolepis sp. Goniporus alatus			? Lanarkia? Turinia Boreania			Nikolivia spp. cf. gutta / auriculata Apalolepis sp. Talivalia			Barlowodus sp. cf. tridens Barlowodus sp. cf. floralis corvaspid heterostracan traquaraspid heterostracan
8905	886	270																x
8904	883	269.1																x			x
8903	(RP)875	266.7																																					x
935	722.5	220.2							x									x										x							x			x
	713.5	217.5 chattertoni LO
7450	712	217								x						x	x	xx									x
	696	212.1 sexidentata LO
	711	216.7																									x
10805	674	205.4														x
	638.5	gravesi LO, eurekaensis 194.6 LO
10802	623	189.9																			x						x
	621.5	189.4																xx			x						x
	M28-14”/C19 7																	x			x
934	613	186.8												x							x
	600	182.9							x					x		x	x	x	x		x						x
10794	599.5	182.7														x	x	x
	599.5	182.7												xx		xxxx		x			x
	599.1	182.6							x					xx				xx
4677	591.5(sl. ST)	180.3														xxx						x
4677	591.5(sl. 2)	180.3							x					x			x	x			x
4677	591.5(sl. 1)	180.3															x	x			x														?	x
10788	592	180.4																x									x
	581.5	177.2																x			x
	579.5	176.6																x
	576.5	175.7																x
	575.5	175.4																x
949	567.3	175.7							x					xx							x
5443	567	172.8 hesperius LO
948	564	171.9												xx		xx					x
	562.6(‘01)	171.5												xx		xx					x
	562.6	171.5												x		xx	x	xx			x
	562.5	171.4 augustidens LO							?							xx		xx
933	562	171.3														xx	x	x	x		x
946	561.3	171.1 birchensis LO
10815	556.5	169.6						xx						x							x														?
	554.5	169						xx										xx			x
5439	549	167.3 paucidentata LO						xx	x					x			x	xx			x
5438	548	167 microdon LO
5437	545	166.1		?							x							xx			x
	536	163.4							?	xx				xx				xx			x
944	527.25	160.7							x	xx	x	x		xx		x	x	xx	x		x					?	x						x			x			x
943	527	160.6							x	xx		?		xx			x	xx			x						x
942	526	160.3								x		x	x	xx			x	xx			x
10770	525 (‘88)	160								x				xx				xx			x
	525	160							x					xx							x	x		?
	518.3	158		x						xx	x			xx			x	x			x
	517.67	157.8 excavata gp.UO
	517	157.6		x						x	x			xx				x			x
	517 (‘90)	157.6	x																		x
5429	513	156.4				x					x																															x
940/5430	510 (‘90)	willowensis LO rems- 155.4 cheidensis gp.LO	xx	x		?															x
6056	507	154.5	x	?																	x
10764	(RP)503	153.3	x	x	x						x										x									x	x						x				x
10761	492.3 (‘01b)	150.1	xx			?					x									x	x
10761	492.3 (‘01a)	150.1	xxx	x		?							x					x		x	x
10761	492.3	150.1	xx	xx	x	?					x		x							x	x		x		?		x															x
10760	491.8	149.9		xx									x								x
10759	491.3	149.7	xx	x		x															x
	480	146.3	x																		x
939/5428	477	145.4 transgrediens UO
	471	143.6	?	x		?	x				x										x
10755	470.2	143.3		x											x
10754	468	142.6	x			?	x				x										x					x	x								x
10752	458.67	139.8	xx	x		?	x				x									x	x		x		x								x		x	x					x
951	457	139.3	xx	x		x					?									xx	x					x				x					?
10750	456.5	139.1	xx	x	x	xxx														x	x								x?		x			x?		x
	456	139	xx	x		x															x
10750	455.9	139	xx	x		x															x
10749	453	138.1	xxx	xx		xxx												x		?	x				?													x	x	x	x?
	(RP)446.5	136.1			x
10748	443	135	xx	x		x														x	x																			xx
10746	430.5	131.2	xxx	xx		xxx	x											x		x	x		x	x	x				x	x		x		x?		xx		x	xx		x
	430.5(7’08)	131.2																						x	?			x										x	x	x
938	427	130.2 transgrediens LO
10744	424.9 (‘99)	129.5	xx	xx		x	x				x										x																		x
10744	424.9	129.5	xx	xx	x	x	x				x		x					?			x									x
931	(RP)402	122.5	xx	?	x	x					x										x						x									x
930	395.01	120.4	xx			x												?			x		x
930	395	120.4	xx	x			x				x									x	x						x
928	318	96.9	xx	x	x						x				x							x				x
7607	27	8.2																										x