PBDB Taxon

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

Drepanoistodus forceps

Conodonta - Conodontophorida - Drepanoistodontidae

Taxonomy

Oistodus forceps was named by Lindström (1955).

It was recombined as Drepanoistodus forceps by Gutiérrez-Marco et al. (2008).

Sister species lacking formal opinion data

D. angulensis, D. arcuatus, D. chuealeznensis, D. concavus, D. contractus, D. expansus, D. foreeps, D. inaequalis, D. minutus, D. nowlani, D. nowlani, D. pervetus, D. stougei, D. subrectus

Synonymy list

Year	Name and author
1955	Oistodus forceps Lindström p. 74–75 figs. pl. 6 f. 1–6
2008	Drepanoistodus forceps Gutiérrez-Marco et al. p. 153 fig. 3.26–3.28

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Cyclostomata	Richards

Rank	Name	Author
order	Conodontophorida
class	Conodonta	Pander 1856
order	Protopanderodontida
family	Drepanoistodontidae	(Fahraeus and Nowlan 1978)
genus	Drepanoistodus	Lindstrom 1971
species	forceps	(Lindström 1955)

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.

†Drepanoistodus forceps Lindström 1955

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

hydroxyapatitec

Environment:

marinesubp

Locomotion:

actively mobilec

Life habit:

nektonicc

Diet:

carnivorec

Vision:

well-developedc

Created:

2005-02-03 07:48:42

Modified:

2010-02-12 04:00:46

Source: c = class, subp = subphylum

References: Aberhan 1992, Carroll 1988

Age range: base of the Hunneberg to the top of the Lasnamagi or 482.90000 to 459.70000 Ma

Collections (58 total)

Time interval	Ma	Country or state	Original ID and collection number
Gasconadian	486.85 - 477.1	Canada (Quebec)	Drepanoistodus forceps (203942)
Tremadocian	486.85 - 477.1	Canada (Newfoundland and Labrador)	Drepanoistodus forceps (234138 234142)
Hunneberg	482.9 - 475.6	Estonia (Harju)	Drepanoistodus forceps (203647)
Floian	477.1 - 471.3	Peru	Drepanoistodus forceps (210687)
Floian	477.1 - 471.3	China (Anhui)	Drepanoistodus forceps (203682 203684 203685 203690 203692 203693)
Floian	477.1 - 471.3	China (Hubei)	Drepanoistodus forceps (203694 203695 203696)
Floian	477.1 - 471.3	Russian Federation	Drepanoistodus forceps (61782 61783 61784 61785 61786 61787 61788 61789 61790 61791 61792)
Billingen	475.6 - 471.3	Estonia (Harju)	Drepanoistodus forceps (203640 203641 203642 203644 203645 203646)
Dapingian	471.3 - 469.4	China (Hubei)	Drepanoistodus forceps (203697 203700)
Dapingian	471.3 - 469.4	Argentina	Drepanoistodus forceps (204200 204201)
Volkhov	471.3 - 469.1	Estonia (Harju)	Drepanoistodus forceps (203636 203637 203638 203639)
Volkhov	471.3 - 469.1	Russian Federation	Drepanoistodus forceps (61779 61780 61781 61796 61797 61798 61799 61800 61801 61802 61803)
Darriwilian	469.4 - 458.2	Argentina	Drepanoistodus forceps (210460)
Kunda	469.1 - 464.3	Estonia	Oistodus forceps (56202)
Kunda	469.1 - 464.3	Sweden	Drepanoistodus forceps (203659 203661 203662)
Llanvirn	468.0 - 458.2	Canada (Northwest Territories)	Oistodus forceps (103361)
Aseri	464.3 - 461.4	Estonia	Oistodus forceps (56200)
Lasnamagi	461.4 - 459.7	Estonia	Oistodus forceps (56203)