PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Beecheria angusta

Rhynchonellata - Terebratulida - Beecheriidae

Taxonomy

Dielasma angusta was named by Netschajew (1894). Its type specimen is Kazan State U, Mus Geol Min 76/13, a shell (Articulated shell), and it is a 3D body fossil.

It was recombined as Beecheria angusta by Smirnova (2007).

Sister species lacking formal opinion data

B. abreviata, B. avellana, B. boranelensis, B. burlingtonensis, B. davidsoni, B. davidsoni, B. formosa, B. illinoisense, B. itaitubensis, B. khalfini, B. latum, B. mesoplanum, B. millepunctata, B. milviformis, B. paraplicata, B. shumardanum, B. sinuata, B. subrotundatus, B. treakensis, B. yeergiangensis

Synonymy list

Year	Name and author
1894	Dielasma angusta Netschajew p. 187 figs. Pl 5
1986	Dielasma angusta Sremac p. 37 figs. Pl 10, fig 6
2007	Beecheria angusta Smirnova p. 784 figs. Pl 4, fig 4; text-fig 63

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
—	Lophophorata
—	Panbrachiopoda	Carlson and Cohen 2020
phylum	Brachiopoda	Cuvier 1805

Rank	Name	Author
subphylum	Rhynchonelliformea	Williams et al. 1996
class	Rhynchonellata	Williams et al. 1996
order	Terebratulida
suborder	Terebratulidina
superfamily	Dielasmatoidea	Schuchert 1913
family	Beecheriidae
genus	Beecheria	Hall and Clarke 1893
species	angusta	(Netschajew 1894)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Beecheria angusta Netschajew 1894

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Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	5	7.24	3.40	9.30	8.50	2.43

Composition:

low Mg calcitep

Environment:

marineuc

Locomotion:

stationaryo

Attached:

yesp

Life habit:

low-level epifaunalo

Diet:

suspension feedero

Vision:

blindc

Created:

2004-02-28 14:14:12

Modified:

2018-11-10 17:47:38

Source: o = order, c = class, p = phylum, uc = unranked clade

References: Nesnidal et al. 2013, Aberhan et al. 2004

Age range: base of the Roadian to the top of the Wordian or 274.40000 to 264.28000 Ma

Collections (7 total)

Time interval	Ma	Country or state	Original ID and collection number
Roadian	274.4 - 266.9	Croatia	Dielasma angusta (62243)
Roadian	274.4 - 266.9	Russian Federation	Beecheria angusta (51532 89200 96748 113629 118077)
Wordian	266.9 - 264.28	Russian Federation	Beecheria angusta (197763)