identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
039087B52044BC6DEA9C7F42F519FA4C.text	039087B52044BC6DEA9C7F42F519FA4C.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acrosaccus WILLARD 1928	<div><p>Genus Acrosaccus WILLARD, 1928</p><p>Type species. – Acrosaccus shuleri WILLARD, 1928; Upper Ordovician, Virginia, USA .</p></div>	https://treatment.plazi.org/id/039087B52044BC6DEA9C7F42F519FA4C	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52044BC6FEAA77FADF335FAA3.text	039087B52044BC6FEAA77FADF335FAA3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acrosaccus squamosus (BARRANDE 1879)	<div><p>Acrosaccus squamosus (BARRANDE, 1879)</p><p>Text-figs 2 A-L</p><p>1879 Discina squamosa BARR.; BARRANDE, pl. 96, case 6. 1982 Orbiculoidea squamosa (BARRANDE, 1879); Havlíček and Mergl, pl. 1, figs 2, 3.</p><p>M a t e r i a l: Fifteen specimens from the collection of V . Havlíček (dorsal valves 3RO 64968-64971, 3RO 64973, 3RO 64975, 3RO 64977, ventral valves 3RO 64964, 3RO 64967, 3RO 64972, 3RO 64974, 3RO 64976, 3RO 64978- 64980), one dorsal and one ventral valve (MM 047, MM</p><p>048), and three dorsal and three ventral valves from new material (PCZCU 1844 to 1849).</p><p>D e s c r i p t i o n: Shell is small, biconvex, thin-walled, 4.5 mm wide in the largest specimen, showing gentle deviation from the bilateral symmetry.</p><p>Dorsal valve is flat conical, subcircular, with the apex situated between 20 to 25% of the shell length. The maximum shell width is slightly posterior to midlength. Anterior margin and lateral margins are evenly rounded. The posterior margin is less curved. Anterior slope is straight with gently convex apical area. Lateral slopes are straight. Posterior slope is gently convex. Dorsal larval shell is circular, with less rounded posterior margin, about 500 µm long and 600 µm wide, slightly and evenly convex without distinct growth lines. Sides of the larval shell are distinguished by a weak halo and a periphery distinctly elevated above the postlarval shell surface.</p><p>Ventral valve is low conical, subcircular with the apex near the centre of the valve. Anterior slope is straight to gently concave. Lateral slopes are straight. Posterior slope is weakly to distinctly convex. Pedicle track is small, elongate oval, widest along its posterior third, occupying 15% of the length and c. 5% of the width of the shell. The listri-</p><p>PCZCU 1824. P–R – Philhedra ? sp., Králův Dvůr Formation, ‘Perník bed’, Jezerka locality. Bar = 1 mm. Dorsal valve internal mould, oblique view and external mould, PCZCU 1850. S–U – Acanthambonia ? sp., Králův Dvůr Formation, ‘Perník bed’, Jezerka locality. Bar = 0.5 mm. Dorsal valve internal mould, external mould and detail of internal surface, MM 027.</p><p>um is divided into a narrow inner listrial plate and broader weakly concave outer listrial plates. External pedicle opening is at the deepest posterior end of the pedicle track.</p><p>Interior of dorsal valve has deep apical pit from which a thin weak median septum extends up to one-third of the anterior slope. Muscle imprints and vascular system are not clearly impressed. Ventral valve interior shows distinct internal pedicle tube which has a constant width along its whole length. The tube is opened posteriorly by an unrestricted internal foramen just anterior to weak internal brim.</p><p>Ornamentation consists of fine regular concentric rugellae. These are weaker and less distinct on the dorsal valve than on the ventral valve. Size of rugellae mildly but regularly increase toward shell periphery, peripheral rugellae being about double-sized that of early concentric fila near the apex. Rugellae are uninterrupted, undivided and almost uniformly sized along their courses except for rugellae on the posterior slope of the dorsal valve. Some of these rugellae are taller and thicker but some of the rugellae distinct on shell flanks and anterior slope are weaker or disappearing. Interspaces having broadly U-shaped profile are narrower than bases of rugellae. There are about 40 rugellae on large shells. Several early concentric fila have a posterior course hidden below the larval shell. These early fila are substitut- ed by coarser and taller rugellae anteriorly. Microornamentation is unknown.</p><p>R e m a r k s: The species was erected by Barrande (1879) based on the ventral valve collected in Králův Dvůr (Koenigshof in original German spelling), but the species has never been formally described despite its illustration by subsequent authors (Havlíček and Mergl 1982). The variation in shell shape is likely to be original, but variation of shell convexity maybe accounted for by post-mortal deformation of the somewhat flexible organophosphatic shell in the sediment.</p><p>There are numerous but generally poorly known Late Ordovician discinoids similar to Acrosaccus squamosus (BARRANDE, 1879) . Dorsal valves of Acrosaccus shuleri WILLARD, 1928 illustrated by Cooper (1956; pl. 18, fig. B7) and re-illustrated by Holmer and Popov (2000; p. 87, figs 2c and 2g) have clearly coarser ornamentation and a much more posteriorly located dorsal apex compared with A. squamosus . The ventral valve of A. shuleri displays a much longer and acutely closed pedicle track. The figured type specimen of A. posteroconvexus (COOPER, 1956; pl. 28B) has a taller ventral valve with a more concave anterior slope than A. squamosus and its pedicle track is narrower. Nikitin et al. (1996) described and illustrated A. aff. posteroconvexus (COOPER, 1956) from the Late Ordovician of Central Kazakhstan. This small discinoid shows some resemblance by its fine ornamentation, but differs from A. squamosus by its taller ventral valve. Another species, Acrosaccus sp., from the Late Ordovician of Kazakhstan (Popov 2000) differs by a narrower ventral pedicle track but the comparison is somewhat uncertain due to its fragmental preservation. Sutton et al. (2000) re-described and illustrated several species of Schizotreta KUTORGA, 1848 from the Middle Ordovician (Llanvirn to Upper Llandeilo of the British regional subdivision, in Sutton et al. 1999). The species S.? transversa WILLIAMS, 1974 redescribed by these authors has a similar shell morphology but displays a coarser ornamentation than A. squamosus . Among the discinoids described by Holmer (1989) from the Middle Ordovician of Sweden the species Orbiculoidea ? sp. resembles the Bohemian species in its finely rugellate ornamentation.</p><p>Orbiculoidea concentrica (WAHLENBERG, 1818) described from the Dalmanitina Beds (Hirnantian) of Wästergötland, Sweden by Bergström (1968) differs from A. squamosus by a longer pedicle track, coarser rugellate ornamentation and a larger shell size. Orbiculoidea radiata TROEDSSON, 1918 described from the Hirnantian of Poland (Temple 1965) differs by its almost flat ventral valve and longer pedicle track.</p><p>There are several late Ordovician species from the British Isles which are similar to A. squamosa . The species Orbiculoidea shallochensis REED, 1917 from the Ashgill Series, Pushgillian, Dicellograptus complanatus Zone of the Girvan District, Scotland (Harper 1984), also reported by Wright (1963) from the Portrane Limestone of Ireland, differs from A. squamosus by a larger shell size and having a larger and longer lanceolate-shaped pedicle track. Orbiculoidea inopia HARPER, 1984 from the Dicellograptus complatus Zone of Girvan District resembles A. squamosa by its small shell size and ornamentation. Although the ornamentation of the Scottish species is similarly fine, the rugellae are more distantly spaced than in A. squamosus . The outline of O. inopia is apparently more regularly circular than of A. squamosus . Orbiculoidea armstrongi REED, 1917 from the Ashgill Series, Rawtheyan, Dicellograptus anceps Zone of Girvan District, Scotland (Harper 1984) differs by a flatly conical pedicle valve, a more centrally situated dorsal apex and a more convexly conical dorsal valve.</p><p>O c c u r r e n c e: Except for the type specimen figured by Barrande (1879), which was sampled from the Králův Dvůr area (=Koeningshof), all other specimens were collected in Jezerka where the species belongs among the moderately common fossils .</p></div>	https://treatment.plazi.org/id/039087B52044BC6FEAA77FADF335FAA3	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52046BC6FE9FE7C39F252F959.text	039087B52046BC6FE9FE7C39F252F959.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hisingerella HENNINGSMOEN 1948	<div><p>Genus Hisingerella HENNINGSMOEN, 1948</p><p>Type species. –? Atrypa nitens VON HISINGER, 1837; Upper Ordovician, Sweden .</p></div>	https://treatment.plazi.org/id/039087B52046BC6FE9FE7C39F252F959	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52041BC68EA8279DEF50BF7CE.text	039087B52041BC68EA8279DEF50BF7CE.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acanthambonia COOPER 1956	<div><p>Genus Acanthambonia COOPER, 1956</p><p>Type species. – Acanthambonia minutissima COOPER, 1956; Middle Ordovician, Alabama, USA .</p><p>Acanthambonia (?) sp.</p><p>Text-figs 2 S-U</p><p>1982 1989</p><p>Acanthambonia sp. Havlíček and Mergl, p. 39. Acanthambonia sp. Štorch and Mergl, table 2.</p><p>M a t e r i a l: One dorsal valve (MM 027).</p><p>D e s c r i p t i o n: Ventral valve unknown. Dorsal valve is 4 mm wide, subcircular, thin-shelled, and despite the deformation due to its collapse, it displays considerable convexity. The dorsal apex is marginal and gently extended posteriorly. Exterior lacks prominent growth lamellae. The valve shows prominent, short, tapering and radially arranged hollow spines of almost uniform size along anteri- or, lateral and posterolateral margins. Shorter spines direct- ed posteriorly are tightly spaced just laterally to the dorsal apex. Valve interior is unknown, but the bases of spines are distinct as a fine internal pustulation. However, this feature may be of a taphonomic origin.</p><p>Ventral valve is unknown.</p><p>R e m a r k s: The record of Upper Ordovician siphonotretids is scarce. Acanthambonia COOPER, 1956 and Multispinula ROWELL, 1962 are only known from the late Katian. The new shell is referred to Acanthambonia because Multispinula has strong concentric ornamentation. It is stratigraphically the youngest siphonotretid known from the Ordovician of Bohemia.</p><p>O c c u r r e n c e: Very rare at Jezerka.</p></div>	https://treatment.plazi.org/id/039087B52041BC68EA8279DEF50BF7CE	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52041BC68E9C07B30F3AAFE22.text	039087B52041BC68E9C07B30F3AAFE22.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pseudopholidops BEKKER 1921	<div><p>Genus Pseudopholidops BEKKER, 1921</p><p>Type species. – Pholidops scutellata BEKKER, 1921; Upper Ordovician, Estonia .</p></div>	https://treatment.plazi.org/id/039087B52041BC68E9C07B30F3AAFE22	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52041BC6BE9DE7B90F5B2FEDD.text	039087B52041BC6BE9DE7B90F5B2FEDD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Pseudopholidops anteglacialis Mergl 2012	<div><p>Pseudopholidops anteglacialis sp. nov.</p><p>Text-fig. 3</p><p>H o l o t y p e: Ventral valve, internal mould, illustrat- ed in Fig. 3 I, J (PCZCU 1835).</p><p>T y p e h o r i z o n: Upper Katian, Králův Dvůr Formation, ‘Perník bed’.</p><p>T y p e l o c a l i t y: Praha – Řeporyje, a temporary outcrop.</p><p>E t y m o l o g y: Ante (Latin) – before, and glaciális (Latin) – glacial.</p><p>M a t e r i a l: Eighteen valves preserved as internal and external moulds in claystone (PCZCU 1826 to 1843).</p><p>D e s c r i p t i o n: Shell is small, biconvex, 2.1 mm wide in the largest collected specimen, having maximum width anteriorly to shell midlength.</p><p>Dorsal valve is elongate oval, 133 % as long as wide in specimens measured (n = 2), thick-walled posteriorly, but anteriorly having a comparatively thin shell wall. Sides and anterior margin are evenly curved. Apex is marginal. Limbus is prominent posteriorly and posterolaterally and rapidly weakens anteriorly. Anterior margin is without the limbus. Shallow incision is present on anterior edge of posteri- or limbus. Valve is moderately and evenly convex transversally and axially. Dorsal pseudointerarea is low anacline, with transversally striated surface. Dorsal visceral area is weakly impressed in posterior part of the valve, being some 40 % as wide as the valve, and anteriorly limited by the shell midlength. Paired anterior adductor scars are large, subtriangular, divided from each other by elongate subrectangular scars of brachial protractors. Posterior unpaired median scars extend significantly posteriorly from the visceral field. Posterior adductor and oblique internal muscle scars are undivided and weakly impressed.</p><p>Ventral valve is elongate-oval, moderately convex in transverse and axial profiles, deepest posteriorly, having gently evenly rounded sides and more rounded anterior margin. Valve is 117 to 140 % as long as wide (n = 12), with outline range from narrowly to broadly oval but it is difficult to distinguish the original variability due to deformation in the clayey shale. Broadly triangular low apsacline ventral pseudointerarea bears fine transverse striation. Apex is marginal, extended posteriorly. Apical angle is approximately 100°. Ventral limbus is tall and broad posteriorly and posterolaterally but vanishing anteriorly. Ventral visceral area is trapezoidal in outline, weakly impressed, some 40 % as wide as valve and extended into the valve midlength. Paired large anterior adductor scars are divided by a short tongue, which is the site of oblique internal muscle attachments.</p><p>Exteriors of both valves bear fine growth lines, which are at regular intervals extended into coarser concentric lamellae. There are 8 to 10 lamellae in large shells.</p><p>R e m a r k s: Apart from the absence of a ventral median ridge, the outline is consistent with attribution of the new species to Pseudopholidops BEKKER, 1921 . The type species P. scutellata (BEKKER, 1921) figured by Popov and Holmer (2000) differs by more numerous growth lamellae and narrower limbus. The new species is very similar to Pseudopholidops stolleyana (HUENE, 1900) from the Baltic area (Huene 1900, Popov and Pushkin 1986). The only difference are weaker impressions of the muscle scars in P. stolleyana . The new material is described as a new species also due to a biological reason. Despite a distinct relationship between the Baltic and Bohemian shelly taxa in the late Katian, it is taxonomically related only at a generic or high- er level. There are no species common to both areas.</p><p>Sanxiaella RONG et CHANG, 1981 (in Chang 1981) is a suggested synonym for Pseudopholidops BEKKER, 1921 after Popov and Holmer (2000). Pseudopholidops partibilis (RONG, 1979), the type species of the invalid genus Sanxiaella, is not a well known species. This Chinese species has a smaller and more distinct visceral platform and its shell is less elongate in comparison with P. anteglacialis .</p><p>Pseudopholidops is a characteristic genus for the Hirnantia Fauna of China (Rong and Chang 1981), and has been also reported from the Hirnantia Fauna of Bohemia (Mergl 1986). Sanxiaella sp. material from the Kosov Formation (Hirnantian) is poor (Mergl 1986, Havlíček 1994a), but it seems that the Hirnantian species differs from the new species by a weaker posterior limbus, higher visceral platforms and a less extended posterior margin lacking a distinct pseudointerarea. Based on the last feature, Mergl’s (1986) Sanxiaella sp. is more related to the unnamed Hirnantian species of Pseudopholidops which was originally referred to Paracraniops by Bergström (1968).</p><p>O c c u r r e n c e: moderately frequent.</p><p>Only in the type locality where it is</p></div>	https://treatment.plazi.org/id/039087B52041BC6BE9DE7B90F5B2FEDD	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52042BC6BEA917B9BF57DFDB6.text	039087B52042BC6BEA917B9BF57DFDB6.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Deliella HALAMSKI 2004	<div><p>Genus Deliella HALAMSKI, 2004</p><p>Type species: Deliella deliae HALAMSKI, 2004; Middle Devonian, Germany .</p></div>	https://treatment.plazi.org/id/039087B52042BC6BEA917B9BF57DFDB6	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52042BC6BE9A47AE0F3BAFEEA.text	039087B52042BC6BE9A47AE0F3BAFEEA.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Philhedra KOKEN 1889	<div><p>Genus Philhedra KOKEN, 1889</p><p>Type species: Philhedra baltica KOKEN, 1889; Middle Ordovician, Estonia .</p></div>	https://treatment.plazi.org/id/039087B52042BC6BE9A47AE0F3BAFEEA	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
039087B52042BC6BEE757B53F266FB84.text	039087B52042BC6BEE757B53F266FB84.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Philhedra KOKEN 1889	<div><p>Philhedra (?) sp.</p><p>Text-figs 2P, R</p><p>M a t e r i a l: One dorsal valve (PCZCU 1850).</p><p>D e s c r i p t i o n: The dorsal valve is subconical, 4 mm wide, thin-walled, subcircular with less rounded posterior margin, having a scalloped commissure. It bears irregular and uneven growth lamellae developed from finer concentric lines. The bases or circular structures, probably bases of hollow spines, are arranged in several weakly marked radial rays. The diameter of these structures rapidly increases toward the shell margin, but their size is almost uniform within the same growth band. Interior is almost smooth, with a pair of small, moderately elevated oval scars of anterior adductor and deep apical pit.</p><p>R e m a r k s: The circular structures are most likely the bases of short hollow spines or some knob-like outgrowths on the shell surface. Such structure is uknown in any other Ordovician craniide from Bohemia. It is somewhat similar to the radially aligned spines of the type species Philhedra baltica KOKEN, 1889, but their diameter is larger than in the type species. The generic assignment is provisional .</p><p>O c c u r r e n c e: Rare at Praha –Řeporyje.</p></div>	https://treatment.plazi.org/id/039087B52042BC6BEE757B53F266FB84	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mergl, Michal	Mergl, Michal (2012): Lingulate And Craniate Brachiopods From The Top Of The Králův Dvůr Formation (Latest Katian) And Their Contribution To Palaeogeography. Acta Musei Nationalis Pragae Series B 68 (1 - 2): 35-46, DOI: 10.5281/zenodo.13190994
